Method for controlling display, photographed image output sysetm capable of using the method, display control device, liquid crystal projector, and digital camera
Abstract
Problem to be solved.To directly connect a digital camera and a liquid crystal projector, the operator cannot be separated from the liquid crystal projector side, which is inconvenient. In a captured image output system 10, an image captured by an imaging device 18 is immediately transmitted to a display control device 16 of a display system 12 via wireless communication 20 in the wake of the capture. The display system 12 immediately projects the received image onto the projection screen 22. The display system 12 is composed of a display device 14 and a display control device 16. The display device 14 is a liquid crystal projector, and the display control device 16 is an optional device for wireless communication connected to the video input terminal of the liquid crystal projector. The image pickup device 18 is a digital still camera equipped with a wireless communication function. [Selection diagram] Fig. 1
Term
Term ended
Projected expiry passed 14 January 2023, 3.7 years ago.
- Priority and filed
- Published
- Projected expiry
- Today
21 claims: 18 independent, 3 dependent
- 1送信すべき撮影画像の仕様を撮像装置と表示システムの間で表示能力に基づいて画定するステップと、前記仕様に適合した撮影画像を前記撮像装置から表示システムへ無線通信経由で送信するステップと、前記送信された画像を前記表示システムで受信して表示するステップと、を有することを特徴とする表示制御方法。
- 2被写体の画像を撮影してその画像を無線通信経由で送信する撮像装置と、前記送信された画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記画像の送信に先立ち、送信すべき画像の仕様を前記表示システムの表示能力に基づいて前記表示システムと撮像装置の間で画定することを特徴とする撮影画像出力システム。
- 3被写体の画像を撮影するステップと、前記撮影した画像をその撮影を契機として撮像装置から外部の表示システムへ無線通信経由で送信するステップと、前記撮影した画像を前記撮像装置が内蔵する表示部と前記表示システムでほぼ同時に表示させるステップと、を有することを特徴とする表示制御方法。
- 4被写体の画像を撮影してその画像を無線通信経由で送信する撮像装置と、前記送信された画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記撮影した画像をその撮影を契機として前記撮像装置が内蔵する表示部と前記表示システムでほぼ同時に表示させることを特徴とする撮影画像出力システム。
- 5撮像装置が内蔵する表示部への表示が指示された画像を前記撮像装置で読み出すステップと、前記読み出された画像をその読出を契機として前記撮像装置から外部の表示システムへ無線通信経由で送信するステップと、前記表示が指示された画像を前記表示部と前記表示システムでほぼ同時に表示させるステップと、を有することを特徴とする表示制御方法。
- 6撮影画像を読み出してその画像を無線通信経由で送信する撮像装置と、前記送信された画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記読み出された画像をその読出を契機として前記撮像装置が内蔵する表示部と前記表示システムでほぼ同時に表示させることを特徴とする撮影画像出力システム。
- 7無線通信可能な複数の表示システムを認識するステップと、撮影画像を無線通信経由で送信する送信先として前記複数の表示システムからいずれかを選択するステップと、前記撮影画像をその撮影を契機として前記選択した表示システムへ無線通信経由で送信するステップと、を有することを特徴とする表示制御方法。
- 8被写体の画像を撮影してその画像を無線通信経由で送信する撮像装置と、画像を無線通信経由で受信してその画像を表示する複数の表示システムと、を備え、前記撮像装置は、前記送信に先立って画像の送信先として前記複数の表示システムを認識し、その認識した複数の表示システムからいずれかを選択し、選択した表示システムに対して前記撮影した画像をその撮影を契機として無線通信経由で送信することを特徴とする撮影画像出力システム。
- 9無線通信可能な複数の撮像装置を認識するステップと、撮影画像を無線通信経由で送信させる送信元として前記複数の撮像装置からいずれかを選択するステップと、前記選択した撮像装置により被写体の画像を撮影するステップと、前記撮影した画像をその撮影を契機として表示システムへ無線通信経由で送信するステップと、を有することを特徴とする表示制御方法。
- 10被写体の画像を撮影してその画像を無線通信経由で送信する複数の撮像装置と、画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記表示システムは、前記受信に先立って画像の送信元として前記複数の撮像装置を認識し、その認識した複数の撮像装置からいずれかを選択し、選択した撮像装置から前記撮影された画像をその撮影を契機として無線通信経由で受信することを特徴とする撮影画像出力システム。
- 11撮像装置から表示システムへ撮影画像を無線通信経由で送信して表示させるのに先立ち、その撮影画像の表示の可否を所定の許可条件に基づいて決定するステップと、前記決定により表示が許可された撮影画像を前記表示システムにより表示するステップと、を有することを特徴とする表示制御方法。
- 12被写体の画像を撮影してその画像を無線通信経由で送信する撮像装置と、前記送信された画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記表示システムは、前記送信される画像に関して表示の可否を所定の許可条件に基づいて決定するとともに、前記決定によって表示を許可した場合に限り前記送信される画像を表示することを特徴とする撮影画像出力システム。
- 13撮像装置と表示システムの間における無線通信の接続状況に関する情報を検出するステップと、前記接続状況に関する情報を前記撮像装置および表示システムのうち少なくともいずれかにより表示するステップと、を有することを特徴とする表示制御方法。
- 14被写体の画像を撮影してその画像を無線通信経由で送信する撮像装置と、画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記撮像装置および表示システムのうち少なくともいずれかが、前記撮像装置と表示システムの間における無線通信の接続状況に関する情報を検出して表示することを特徴とする撮影画像出力システム。
- 15撮像装置から表示システムへ無線通信経由で送信する撮影画像の前記表示システムにおける表示の可否を決定するステップと、前記表示の可否に関する情報を前記表示システムにより表示するステップと、を有することを特徴とする表示制御方法。
- 16被写体の画像を撮影してその画像を無線通信経由で送信する撮像装置と、画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記表示システムは、前記撮像装置で撮影された画像の前記表示システムにおける表示の可否を決定し、決定された表示の可否に関する情報を表示することを特徴とする撮影画像出力システム。
- 17撮像装置と表示システムの間で無線通信を確立するために必要な設定情報を視覚的に表現した設定画像を生成するステップと、前記設定画像を表示するステップと、前記表示された設定画像を被写体とした画像を撮影するステップと、前記撮影した画像に基づいて前記設定情報を認識するステップと、前記認識した設定情報に基づいて前記撮像装置と表示システムの間で無線通信を確立するステップと、を有することを特徴とする表示制御方法。
- 18被写体の画像を撮影してその画像を無線通信経由で送信する撮像装置と、画像を無線通信経由で受信してその画像を表示する表示システムと、を備え、前記表示システムは、前記撮像装置との無線通信の確立に必要な設定情報を視覚的に表現した設定画像を生成してこれを表示し、前記撮像装置は、前記表示された設定画像を被写体とした画像を撮影し、撮影した画像に基づいて前記設定情報を認識し、認識した設定情報に基づいて前記表示システムとの無線通信を確立することを特徴とする撮影画像出力システム。
- 19請求項1から18のいずれかに記載の表示システムの一部を構成する装置として、表示装置の入力端子に接続され、撮像装置から無線通信経由で画像を受信し、受信した画像を前記表示装置の入力端子に出力することを特徴とする表示制御装置。
- 20請求項1から18のいずれかに記載の表示システムとして機能することを特徴とする液晶プロジェクタ。
- 21請求項1から18のいずれかに記載の撮像装置として機能することを特徴とするデジタルカメラ。
Independent claims21
142 paragraphs in 1 section, as filed
【0001】
[Technical field to which the invention belongs]
The present invention relates to a display control method and a captured image output system, a display control device, a liquid crystal projector, and a digital camera that can use this method. The present invention particularly relates to a technique for transmitting a captured image via a wireless network.
【0002】
[Conventional technology]
Display devices such as liquid crystal projectors that project images onto screens have traditionally been used for presentations and research presentations, mainly as devices for business and academic purposes. However, in recent years, with the spread of DVDs, low-priced LCD projectors have been developed one after another as products for home theaters. Such a trend toward lower prices is facilitating the introduction of LCD projectors into classes in school education.
【0003】
On the other hand, as the content projected by the liquid crystal projector, an image taken by a digital camera is often used. Recently, a technique has been proposed in which a digital camera is directly connected to a liquid crystal projector to display an image without going through a personal computer (see, for example, Patent Document 1).
【0004】
[Patent Document 1]
Japanese Unexamined Patent Publication No. 11-317898 (full text) [0005]
[Problems to be Solved by the Invention]
However, according to the above-mentioned prior art, since the digital camera and the liquid crystal projector are directly connected, the operator is separated from the liquid crystal projector side during the work of displaying the image in the digital camera on the liquid crystal projector or switching the image. I couldn't. Therefore, even if an attempt is made to take an image while the digital camera is connected to the liquid crystal projector, the shooting range is limited to the vicinity of the liquid crystal projector, which is inconvenient. Further, since the position of the operator is limited to the vicinity of the liquid crystal projector, the work becomes complicated when a plurality of people want to perform alternate operations. Therefore, it was not always suitable for utilization methods such as having multiple students present their respective images in school education.
【0006】
The present invention has been made in view of such a situation, and an object of the present invention is to improve convenience in displaying an image in a digital camera by using a projector. Another object of the present invention is to propose a new utilization method in the combination of a projector and a digital camera.
【0007】
[Means for solving problems]
One aspect of the present invention is a display control method. This method defines the specifications of the captured image to be transmitted between the image pickup device and the display system based on the display capability, and transmits the captured images conforming to the specifications from the image pickup device to the display system via wireless communication. It has a step and a step of receiving and displaying the transmitted image on the display system. According to this aspect, an image matching the display capability of the display system is transmitted from the image pickup apparatus. Therefore, the optimum image can be easily displayed without manually setting the image resolution and the file format.
【0008】
Another aspect of the present invention is a captured image output system. This system includes an imaging device that captures an image of a subject and transmits the image via wireless communication, and a display system that receives the transmitted image via wireless communication and displays the image. Further, prior to the transmission of the image, the specifications of the image to be transmitted are defined between the display system and the imaging device based on the display capability of the display system. The specifications may be defined immediately before the image is transmitted, or the specifications may be defined before the image is taken. For example, it may be defined when the power of the image pickup apparatus is turned on. If the specifications are defined before the image is taken, the image pickup apparatus may take pictures under the optimum conditions for the specifications. The display system may be defined by sending the display capability information to the image pickup device and selecting the specifications on the image pickup device side, or conversely, the image pickup device sends the image pickup capability information to the display system and selects it on the display system side. It may be defined by Also in this embodiment, an image matching the display capability of the display system is transmitted from the image pickup apparatus. Therefore, the optimum image can be easily displayed without manually setting the image resolution and the file format.
【0009】
Yet another aspect of the present invention is a display control method. This method includes a step of capturing an image of a subject, a step of transmitting the captured image from the imaging device to an external display system via wireless communication, and a display unit built in the imaging device. And a step of displaying on the display system at almost the same time. According to this aspect, the image captured by the imaging device is automatically transmitted to the display system and displayed immediately without manually instructing transmission. Therefore, the operator of the image pickup device, that is, the photographer can easily display the image in the image pickup device on the display system without performing troublesome operations. Further, a display system can be used as a substitute for the display unit built in the imaging device, and its operability and immediacy of reproduction are not impaired.
【0010】
Yet another aspect of the present invention is a captured image output system. This system includes an imaging device that captures an image of a subject and transmits the image via wireless communication, and a display system that receives the transmitted image via wireless communication and displays the image. In addition, the captured image is displayed almost simultaneously on the display unit and the display system built in the imaging device, triggered by the capture. Also in this embodiment, the captured image is automatically transmitted to the display system and displayed immediately. Therefore, the image in the image pickup apparatus can be easily displayed on the display system, and the operability and the immediacy of reproduction are not impaired.
【0011】
Yet another aspect of the present invention is a display control method. In this method, the step of reading out the image instructed to be displayed on the display unit built in the image pickup device by the image pickup device and the reading of the read image as an opportunity from the image pickup device to the external display system via wireless communication. It has a step of transmitting and a step of displaying an image instructed to be displayed on the display unit and the display system at almost the same time. According to this aspect, the image to be reproduced on the display unit of the image pickup apparatus is automatically immediately transmitted to the display system and displayed without manually instructing transmission. Therefore, the operator of the image pickup apparatus can easily display the image in the image pickup apparatus on the display system without performing troublesome operations. Further, a display system can be used as a substitute for the display unit built in the imaging device, and its operability and immediacy of reproduction are not impaired.
【0012】
Yet another aspect of the present invention is a captured image output system. This system includes an imaging device that reads a captured image and transmits the image via wireless communication, and a display system that receives the transmitted image via wireless communication and displays the image. In addition, the read image is displayed almost simultaneously on the display unit and the display system built in the image pickup apparatus, triggered by the reading. Also in this embodiment, the image to be reproduced on the display unit of the image pickup apparatus is automatically immediately transmitted to the display system and displayed. Therefore, the image in the image pickup apparatus can be easily displayed on the display system, and the operability and the immediacy of reproduction are not impaired.
【0013】
Yet another aspect of the present invention is a display control method. This method is triggered by a step of recognizing a plurality of display systems capable of wireless communication, a step of selecting one from a plurality of display systems as a destination for transmitting a captured image via wireless communication, and a step of capturing the captured image. It has a step of transmitting to the selected display system via wireless communication. According to this aspect, one imaging device can be connected to a plurality of display systems, and a display destination can be selected from a plurality of display systems. It is also possible to connect a plurality of imaging devices to a plurality of display systems. Therefore, it is possible to give flexibility to the combination of the display system and the image pickup apparatus and expand the applications.
【0014】
Yet another aspect of the present invention is a captured image output system. This system includes an imaging device that captures an image of a subject and transmits the image via wireless communication, and a plurality of display systems that receive the image via wireless communication and display the image. Further, the imaging device recognizes a plurality of display systems as image transmission destinations prior to transmission, selects one from the recognized plurality of display systems, and captures an image captured by the selected display system. Is used as an opportunity to transmit via wireless communication. For example, the display destination may be selected according to the resolution of the captured image, or each image may be selected as a separate display destination during continuous shooting. Also in this embodiment, one imaging device can be selectively displayed on a plurality of display systems, and the display system and the imaging device can be flexibly combined.
【0015】
Yet another aspect of the present invention is a display control method. This method includes a step of recognizing a plurality of image pickup devices capable of wireless communication, a step of selecting one from a plurality of image pickup devices as a transmission source for transmitting a captured image via wireless communication, and a step of selecting a subject by the selected image pickup device. It has a step of taking an image and a step of transmitting the taken image to a display system via wireless communication with the taking as an opportunity. According to this aspect, a plurality of image pickup devices can be connected to one display system, and images can be alternately transmitted from each image pickup device to the display system and displayed under certain rules. It is also possible to connect a plurality of imaging devices to a plurality of display systems. Therefore, it is possible to give flexibility to the combination of the display system and the image pickup apparatus and expand the applications.
【0016】
Yet another aspect of the present invention is a captured image output system. This system includes a plurality of imaging devices that capture an image of a subject and transmit the image via wireless communication, and a display system that receives the image via wireless communication and displays the image. Further, the display system recognizes a plurality of image pickup devices as an image transmission source prior to reception, selects one from the recognized plurality of image pickup devices, and captures the captured image from the selected image pickup device. Is used as an opportunity to receive via wireless communication. Also in this embodiment, a plurality of image pickup devices can be connected to one display system to alternately display images, and the display system and the image pickup device can be flexibly combined.
【0017】
Yet another aspect of the present invention is a display control method. In this method, prior to transmitting the captured image from the imaging device to the display system via wireless communication and displaying the captured image, the step of determining whether or not the captured image can be displayed based on a predetermined permission condition, and the display by the determination are performed. It has a step of displaying the permitted captured image by the display system. The permission condition may determine whether or not the captured image can be displayed, or whether or not the image can be displayed for each imaging device. According to this aspect, it is possible to limit the timing of displaying an image on the display system and the display target. Therefore, the display target sent from the image pickup apparatus side can be restricted or managed on the display system side.
【0018】
Yet another aspect of the present invention is a captured image output system. This system includes an imaging device that captures an image of a subject and transmits the image via wireless communication, and a display system that receives the transmitted image via wireless communication and displays the image. In addition, the display system determines whether or not to display the transmitted image based on a predetermined permission condition, and displays the transmitted image only when the display is permitted by the determination. It may be determined whether or not the display is possible automatically, or it may be determined manually by the operator of the display system. The reception of the image may be permitted regardless of whether or not the display is permitted, or the reception of the image may be refused unless the display is permitted. Also in this embodiment, the display target on the display system can be controlled on the display system side.
【0019】
Yet another aspect of the present invention is a display control method. This method includes a step of detecting information on the connection status of wireless communication between the image pickup device and the display system, and a step of displaying the information on the connection status by at least one of the image pickup device and the display system. According to this aspect, the established state of wireless communication between the image pickup device and the display system, the state of image transmission, the state of radio waves, etc. are transmitted to either the display system or the image pickup device, or both the display system and the image pickup device. Can be displayed. Therefore, the communication partner of the image pickup apparatus can be easily grasped regardless of the communication state. Further, a display system can be used as a substitute for the display unit built in the imaging device.
【0020】
Yet another aspect of the present invention is a captured image output system. This system includes an imaging device that captures an image of a subject and transmits the image via wireless communication, and a display system that receives the image via wireless communication and displays the image. In addition, at least one of the image pickup device and the display system detects and displays information regarding the connection status of wireless communication between the image pickup device and the display system. Also in this embodiment, the state of communication between the image pickup device and the display system can be displayed on either the display system or the image pickup device, or both the display system and the image pickup device, and the communication state can be easily grasped.
【0021】
Yet another aspect of the present invention is a display control method. This method includes a step of determining whether or not the captured image transmitted from the image pickup apparatus to the display system via wireless communication can be displayed in the display system, and a step of displaying information regarding the displayability by the display system. Whether or not the display is possible may be whether or not the display can be performed on a specific imaging device, or whether or not the display can be performed at a specific timing. According to this aspect, the display restrictions made in the display system are displayed. Therefore, the display target permitted in the display system can be clarified, and the target can be easily grasped from the photographing device side.
【0022】
Yet another aspect of the present invention is a captured image output system. This system includes an imaging device that captures an image of a subject and transmits the image via wireless communication, and a display system that receives the image via wireless communication and displays the image. In addition, the display system determines whether or not the image captured by the image pickup apparatus can be displayed in the display system, and displays information regarding whether or not the determined display is possible. Also in this embodiment, the display restrictions in the display system can be easily grasped.
【0023】
Yet another aspect of the present invention is a display control method. This method includes a step of generating a setting image that visually expresses the setting information necessary for establishing wireless communication between the image pickup device and the display system, a step of displaying the setting image, and a displayed setting image. It has a step of capturing an image with the subject as a subject, a step of recognizing setting information based on the captured image, and a step of establishing wireless communication between the image pickup apparatus and the display system based on the recognized setting information. .. According to this aspect, communication is automatically established between the image pickup apparatus and the display system by using the respective functions without any manual setting operation. Therefore, the image pickup apparatus and the display system can be easily connected without complicated setting work.
【0024】
Yet another aspect of the present invention is a captured image output system. This system includes an imaging device that captures an image of a subject and transmits the image via wireless communication, and a display system that receives the image via wireless communication and displays the image. In addition, the display system generates and displays a setting image that visually expresses the setting information necessary for establishing wireless communication with the image pickup device. The image pickup apparatus takes an image of the displayed set image as a subject, recognizes the setting information based on the captured image, and establishes wireless communication with the display system based on the recognized setting information. Also in this embodiment, the image pickup apparatus and the display system can be automatically connected without complicated setting work.
【0025】
It should be noted that any combination of the above components, and those in which the components and expressions of the present invention are mutually replaced between methods, devices, systems, computer programs, recording media storing programs, data structures, and the like are also used. It is effective as an aspect of the present invention.
【0026】
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows the basic configuration of the captured image output system 10. The image taken by the image pickup device 18 is transmitted to the display control device 16 of the display system 12 via the wireless communication 20. The display control device 16 inputs the received image to the display device 14 of the display system 12. The display device 14 projects the input image onto the screen. The image just taken by the image pickup apparatus 18 is immediately displayed on the projection screen 22.
【0027】
The image pickup device 18 is, for example, a digital still camera equipped with a wireless LAN function. The wireless communication 20 mainly includes wireless LAN communication such as IEEE802.11a / b / g and communication methods such as Bluetooth (trademark). The display system 12 includes a display device 14 and a display control device 16. Although a liquid crystal projector is illustrated as the display device 14, a television receiver may be used. The display control device 16 is, for example, a device having a built-in wireless LAN function and an image signal conversion function, and is an optional device connected to an image input terminal of a liquid crystal projector. However, the display system 12 may be configured by incorporating the display control device 16 into the display device 14.
【0028】
The configuration of the image pickup device 18 and the display control device 16 can be realized by the CPU, memory, communication module, and other LSIs in terms of hardware, and the data transmission / reception function and image processing function loaded in the memory in terms of software. It is realized by a certain program, etc., but in Fig. 2 and later, the functional blocks realized by their cooperation are drawn. Therefore, it will be understood by those skilled in the art that these functional blocks can be realized in various ways by hardware only, software only, or a combination thereof.
【0029】
FIG. 2 is a functional block diagram showing the basic configuration of the display control device 16. The display control device 16 includes a communication unit 50, a buffer memory 52, a control unit 54, an image processing unit 56, an output unit 58, and an operation unit 60. Each unit communicates with the outside via the communication unit 50. The communication unit 50 receives an image from the image pickup apparatus 18 and stores it in the buffer memory 52. The buffer memory 52 is a RAM that temporarily stores still image or moving image data compressed in a JPEG format, an MPEG format, or the like. The image processing unit 56 reads an image from the buffer memory 52 and performs decoding processing and video signal conversion processing to generate video data. The output unit 58 outputs the video data generated by the image processing unit 56 to the video input terminal of the display device 14. The control unit 54 controls the operation of each unit such as the communication unit 50 and the image processing unit 56. The operation unit 60 receives an operation from the user and sends a command corresponding to the operation to the control unit 54.
【0030】
FIG. 3 is a functional block diagram showing the basic configuration of the image pickup apparatus 18. The image pickup apparatus 18 includes a lens 30, a CCD 32, an image processing unit 34, a buffer memory 36, a display unit 38, a control unit 40, a communication unit 42, and an operation unit 44. The lens 30 captures the light from the subject and forms an image, and the CCD 32 converts the formed image into an electric signal. The image processing unit 34 A / D-converts the electric signal, compresses it, and stores it in the buffer memory 36. The buffer memory 36 is a RAM that temporarily stores still image or moving image data compressed in a JPEG format, an MPEG format, or the like. The display unit 38 displays the image stored in the buffer memory 36 on the screen of the display unit 38. The communication unit 42 transmits an image to the display control device 16 via wireless communication. Each unit communicates with the outside via the communication unit 42. The control unit 40 controls the operation of each unit such as the CCD 32, the display unit 38, and the communication unit 42. The operation unit 44 receives an operation from the user and sends a command corresponding to the operation to the control unit 40.
【0031】
FIG. 4 is a functional block diagram showing a detailed configuration of the control unit 54 of the display control device 16. The control unit 54 includes a specification setting unit 90, a reproduction control unit 92, a target setting unit 94, a communication setting unit 96, a status display unit 98, and a setting image generation unit 99. The specification setting unit 90 defines the specifications of the image to be received from the image pickup device 18, and the reproduction control unit 92 controls the output of the image to the display device 14. The target setting unit 94 sets the target of the image to be displayed by the display system 12, and the communication setting unit 96 controls wireless communication with the image pickup device 18. The status display unit 98 outputs various information such as the communication status to the display device 14, and the setting image generation unit 99 outputs information necessary for the image pickup device 18 to establish wireless communication with the display control device 16. The detailed functions of each configuration will be described later.
【0032】
FIG. 5 is a functional block diagram showing a detailed configuration of the control unit 40 of the image pickup apparatus 18. The control unit 40 includes a specification setting unit 70, a transfer processing unit 72, a playback control unit 74, a shooting control unit 76, a communication setting unit 78, a status display unit 80, and a setting recognition unit 82. The specification setting unit 70 defines the specifications of the image to be transmitted to the display control device 16, and the transfer processing unit 72 controls the transmission of the image to the display control device 16. The reproduction control unit 74 controls the reproduction of the image by the display unit 38, and the imaging control unit 76 controls the imaging of the image by the CCD 32. The communication setting unit 78 sets information necessary for establishing wireless communication with the display control device 16, and the status display unit 80 displays various information such as the communication status on the display unit 38. The detailed functions of each configuration will be described later.
【0033】
Hereinafter, the functions of the captured image output system 10 will be described in order. The first function is a function that defines the specifications of the image to be displayed. The specification setting unit 90 in FIG. 4 stores the display capability of the display system 12 in advance. The display capability is shown in resolutions such as VGA, XGA, and SXGA, and file formats such as JPEG and TIFF. The specification setting unit 90 transmits the data of the display capability of the display system 12 to the image pickup apparatus 18 as the specifications of the image that can be displayed by the display system 12. The specification setting unit 70 of FIG. 5 acquires data related to image specifications from the specification setting unit 90 of FIG. The specification setting unit 70 stores the imaging capability of the imaging device 18 in advance. The imaging capability is indicated, for example, in the resolution of the image that can be captured and in a file format such as JPEG or TIFF. The specification setting unit 70 compares the display capacity acquired from the specification setting unit 90 with the imaging capacity of the imaging device 18 to arbitrate the capacity. For example, if there is a specification common to the resolution and file format, that specification is adopted, and if there is no common specification, the image is converted so as to match the display capability. If there are a plurality of specifications in common, specifications with higher image quality may be adopted. The arbitration of these capabilities may be performed with the display system 12 when the image pickup device 18 is turned on.
【0034】
FIG. 6 is a flowchart showing a process of transmitting a captured image from the image pickup device 18 to the display control device 16. When the image pickup device 18 captures an image (S10) and sends a transmission permission request for the captured image to the display control device 16 (S12), the display control device 16 captures the permission notification and the specifications of the image that can be displayed as a response to the request. Send to device 18 (S14). The image pickup device 18 defines the specifications of the image to be transmitted to the display control device 16 in light of the image pickup capability (S16), and converts the image as necessary (S18). When the image pickup device 18 transmits an image to the display control device 16 (S20) and the display control device 16 sends an ACK response back to the image pickup device 18 (S22), the image transfer ends. The subsequent flow will be described later.
【0035】
The second function is a function in which the display unit 38 of the image pickup apparatus 18 and the display control device 16 simultaneously display the captured image immediately after the capture. When an image is taken under the control of the shooting control unit 76 of FIG. 5, the transfer processing unit 72 controls to immediately transmit the shot image to the display control device 16 with the shooting as an opportunity. When the image transmission to the display control device 16 is completed, the display unit 38 is instructed to display the image. The reproduction control unit 92 of FIG. 4 controls to immediately output the image received from the image pickup device 18 to the display device 14. As a result, the captured image is displayed on the display unit 38 and the display system 12 almost at the same time without any instruction from the user of the image pickup apparatus 18.
【0036】
In FIG. 6, after the image is transmitted from the image pickup device 18 to the display control device 16 by the process from S10 to S22 as described above, the display unit 38 and the display system 12 of the image pickup device 18 display the same image almost at the same time ( S26, S28).
【0037】
The third function is a function of simultaneously displaying the image reproduced on the display unit 38 of the image pickup apparatus 18 on the display system 12. When the user of the image pickup apparatus 18 instructs the reproduction of an image via the operation unit 44, the reproduction control unit 74 of FIG. 5 controls the process of reading out the image to be reproduced. The read destination is the buffer memory 36 or an external server. When the image stored in the external server is reproduced, the communication unit 42 receives the image. The transfer processing unit 72 controls to immediately transmit the read image to the display control device 16 when the image is read. The reproduction control unit 74 instructs the display unit 38 to display the image when the image transmission to the display control device 16 is completed. The reproduction control unit 92 of FIG. 4 controls to immediately output the image received from the image pickup device 18 to the display device 14. As a result, the image to be reproduced is displayed on the display unit 38 and the display system 12 almost at the same time without any instruction from the user of the image pickup apparatus 18.
【0038】
FIG. 7 is a flowchart showing a process of transmitting a captured image from the image pickup device 18 to the display control device 16. When the image pickup device 18 reads the image to be reproduced (S50) and sends a transmission permission request for the read image to the display control device 16 (S51), the display control device 16 gives a permission notification and a displayable image as a response to the request. Send the specifications to the image pickup device 18 (S52). The image pickup device 18 defines the specifications of the image to be transmitted to the display control device 16 in light of the image to be reproduced (S54), and converts the image as necessary (S56). After the image pickup device 18 transmits an image to the display control device 16 (S58) and the display control device 16 sends the ACK response back to the image pickup device 18 (S60), the image pickup device 18 and the display system 12 display the image almost at the same time. (S64, S66).
【0039】
The fourth function is a function that can connect a plurality of image pickup devices 18 and a plurality of display systems 12 in various combinations. When a plurality of units are represented as n units, the number of each of the image pickup device 18 and the display system 12 is a combination of 1: 1, 1: n, n: 1, and n: n.
【0040】
FIG. 8 shows an example of a connection configuration between the display system 12 and the image pickup device 18 in the captured image output system 10. FIG. 8A shows the connection configuration of the smallest unit, in which the display system 12 and the imaging device 18 are connected one-to-one. In this case, since there is only one communication partner with each other, the target setting unit 94 in FIG. 4 and the transfer processing unit 72 in FIG. 5 do not need to select a destination or a source, respectively.
【0041】
FIG. 8 (b) shows a configuration in which the display system 12 and the imaging device 18 are connected in a one-to-n manner. For example, it is assumed that one display system 12 is installed in a classroom of a school and a plurality of imaging devices 18 are assigned to a plurality of students. The target setting unit 94 in FIG. 4 recognizes a plurality of image pickup devices 18 by referring to unique information such as their IP addresses and MAC addresses, and manually or automatically uses one of the plurality of image pickup devices 18 as an image source. Select with. As information representing the overall configuration of the captured image output system 10, a predetermined administrator may create in advance a correspondence table of the user name of the imaging device 18 and the IP address or MAC address. The corresponding table may be stored on a predetermined server and acquired by the target setting unit 94 as appropriate, or a recording medium such as a memory card storing the corresponding table may be distributed and read by the target setting unit 94. ..
【0042】
FIG. 8 (c) shows a configuration in which the display system 12 and the imaging device 18 are connected n to 1. For example, a configuration in which a plurality of display systems 12 are installed and each image is sequentially displayed on a separate display system 12 when continuously shot by the imaging device 18, or a configuration in which a plurality of images are displayed on different display systems 12 according to resolution. is assumed. The transfer processing unit 72 in FIG. 5 recognizes a plurality of display systems 12 by referring to unique information such as their IP addresses and MAC addresses, and manually or automatically uses one of the plurality of display systems 12 as an image transmission destination. Select with. The overall configuration of the captured image output system 10 may be managed by a corresponding table, and the corresponding table may be acquired by the transfer processing unit 72.
【0043】
FIG. 8D shows a configuration in which the display system 12 and the imaging device 18 are connected n to n. This configuration is a combination of Fig. 8 (b) and Fig. 8 (c). For example, one display system 12 is installed in each of a plurality of classrooms in a school, and a plurality of display systems 12 are assigned to a plurality of students from each classroom. It is assumed that the entire school is configured so that the image pickup device 18 of the above is connected. Further, for example, it is possible to envision a configuration in which a plurality of display systems 12 are installed, images are transmitted from the plurality of image pickup devices 18 on a first-come, first-served basis, and the images are displayed on different display systems 12 according to the transmission order. The plurality of display systems 12 and the plurality of imaging devices 18 can manually or automatically select the parties to which images are transmitted or received.
【0044】
FIG. 9 illustrates a screen for selecting an image source. This figure is a projection screen 22 projected on the screen by the display device 14, and the device numbers indicating the plurality of image pickup devices 18 and the user names of those devices are displayed in a list. The corresponding table of the device number and the user name may be created in advance by the administrator of the captured image output system 10. Further, the system number 103 indicating the display system 12 is displayed in the corner of the projection screen 22. The user who operates the display system 12 can move the cursor 112 up and down to select from the list the user names that are allowed to transmit images. In response to such a user instruction, the target setting unit 94 of FIG. 4 sets the source of the image and controls the display device 14 to output the image received from the source. Further, none of the image pickup devices 18 may be selected, and the display of all images may be rejected. The target setting unit 94 stores the display enable / disable setting determined based on these selections as a permission condition.
【0045】
FIG. 10 illustrates a screen for selecting an image destination. This figure is a display unit screen 106 displayed by the display unit 38 of the image pickup apparatus 18, and system numbers indicating a plurality of display systems 12 are displayed in a list. The system number may be assigned to a plurality of display systems 12 by the administrator in advance. Further, the device number 111 indicating the image pickup device 18 is displayed in the corner of the display unit screen 106. The user who operates the image pickup apparatus 18 moves the cursor 107 up and down to select the image transmission destination, that is, the system number of the display system 12 to be displayed from the list. In response to such a user instruction, the transfer processing unit 72 of FIG. 5 sets a transmission destination of the image, and controls to transmit the image to the display device 14 which is the transmission destination.
【0046】
The fifth function is a function of displaying only the images permitted under specific permission conditions on the display system 12 and rejecting the display of other images. The target setting unit 94 in FIG. 4 determines whether or not to display each image based on the permission conditions. As the content of the permission condition, it is possible to determine various rules for determining whether or not to display each image. For example, after the display system 12 receives and displays one image, a permission condition may be set so as to reject the display of the subsequent image even if it is transmitted from the same image pickup device 18 for a certain period of time. As shown in FIG. 6, after the display control device 16 transmits the permission notification to the image pickup device 18 (S14), the reception mode for waiting for the reception of the image is started (S17), and the image is received (S20). After displaying (S28), exit the reception mode (S30). After that, even if the same image pickup device 18 takes a new image (S32) and sends an image transmission permission request to the display control device 16 (S34), the display control device 16 responds to the image pickup device 18 with a refusal notification. (S36). At this time, the image pickup device 18 displays the captured image on the display unit 38 (S38), while the display control device 16 causes the display device 14 to display that the reception mode has been terminated (S40).
【0047】
As another permission condition, for example, a permission condition may be set so that the image to be displayed is determined on a first-come, first-served basis. That is, it is a method of displaying only the first transmitted image after the display control device 16 enters the reception mode of waiting for the reception of the image. At this time, permission conditions may be set so as to allow the display of not only the image transmitted first but also the image transmitted from the same imaging device 18 thereafter.
【0048】
FIG. 11 shows a process of displaying images transmitted from the three image pickup devices 18 on a first-come, first-served basis. The three image pickup devices 18 are referred to as camera D1, camera D2, and camera D3, respectively. The camera D1 first captures an image (S70), sends an image transmission permission request to the display control device 16 (S72), and the display control device 16 responds with a permission notification and display image specifications (S74). Even if the display control device 16 starts the reception mode only for the camera D1 (S77), the camera D3 takes an image before and after that (S92), and then sends a transmission permission request to the display control device 16 (S77). S94), the display control unit 16 responds with a refusal notification (S96).
【0049】
Upon receiving the permission notification, the camera D1 defines the image specifications (S76), converts the image as necessary (S78), transmits the image conforming to the specifications to the display control device 16 (S80), and controls the display. Device 16 sends an ACK response (S82). The camera D1 and the display system 12 display the images taken by the camera D1 almost at the same time (S86, S88), and the display control device 16 exits the reception mode (S90). After that, even if the camera D2 captures an image (S100) and sends a transmission permission request for the captured image to the display control device 16 (S102), the display control device 16 responds with a rejection notification (S104).
【0050】
As another permission condition, for example, as described with reference to FIG. 9, the permission condition may be set by manually selecting a specific imaging device 18 that is permitted to be displayed by the user who operates the display system 12.
【0051】
The sixth function is a function of displaying the connection status of communication between the image pickup device 18 and the display control device 16. FIG. 12 shows the display contents on the projection screen 22 projected by the display system 12. The connection status 104 is displayed on the projection screen 22. The connection status 104 shown in the figure is the character "transmitting ...", indicating that the image pickup apparatus 18 is currently transmitting an image to the display apparatus 14. As the connection status 104, for example, "error" may be displayed to indicate disconnection of communication or failure of image transmission. For example, "Received 104KB" may be displayed, indicating that the image has been successfully received and the received image size.
【0052】
FIG. 13 shows the display contents on the display unit screen 106 of the image pickup apparatus 18. The connection status 110 is also displayed on the display screen 106. The connection status 110 shown in the figure is the character within range, indicating that the image pickup apparatus 18 is currently within the range where wireless communication is possible. When you are out of the service area where wireless communication is not possible, the characters "out of service area" are displayed on the display screen 106 as the connection status 110. As in the display contents of the projection screen 22 shown in FIG. 12, characters such as "transmitting ...", "error", and "reception 104KB" may be displayed on the display unit screen 106 as the connection status. Further, this display content may be displayed on both the display unit screen 106 and the projection screen 22 at the same time. As a result, the user can check the connection status by looking at either the display screen 106 or the projection screen 22.
【0053】
The seventh function is a function of displaying whether or not an image can be displayed on the image pickup apparatus 18. On the projection screen 22 of FIG. 12, the permission target person name 100 and the permission display 102 indicating the users who are permitted to display are displayed. In the case where a plurality of image pickup devices 18 are connected to one display system 12, the user of each image pickup device 18 sees the display availability display on the projection screen 22 and grasps who is permitted. On the display unit screen 106 of FIG. 13, the characters "permitted" or "prohibited" are displayed as display enable / disable 108, and the user who operates the imaging device 18 can grasp whether or not the display is possible by looking at the display unit screen 106. it can.
【0054】
The eighth function is a function for automatically setting information necessary for establishing wireless communication between the image pickup device 18 and the display control device 16. The communication setting unit 96 of FIG. 4 holds the setting information necessary for the image pickup device 18 to establish wireless communication with the display device 14. The setting information may be, for example, a MAC address which is a unique hardware address of the display device 14 as the minimum necessary information, and other ESS-ID, WEP password, IP address, etc. necessary for wireless LAN setting. Further information may be included. The setting image generation unit 99 generates a setting image that visually expresses these setting information. For example, an image of a two-dimensional barcode representing the MAC address as a graphic may be generated, or an image displaying a character string of the MAC address may be simply generated. The setting image generation unit 99 outputs the generated setting image to the display device 14 and displays it on the projection screen 22. The image pickup apparatus 18 captures the displayed set image, and the setting recognition unit 82 of FIG. 5 reads the image and recognizes the setting information. When a character string is displayed on the setting image, the setting recognition unit 82 recognizes the setting information by character recognition. The communication setting unit 78 establishes communication with the display device 14 by using the setting information. As a method for establishing communication, a communication capable of transmitting an image may be established by exchanging necessary setting information after securing a communication capable of exchanging a minimum amount of information using a MAC address.
【0055】
According to this function, wireless communication can be set without manually inputting information to the image pickup apparatus 18. Normally, the image pickup device 18 does not have an information input interface unrelated to the original shooting, such as inputting characters and numbers. By providing this function, it is not necessary to newly provide such a user interface, and the interface of the image pickup apparatus 18 can be simplified.
【0056】
FIG. 14 shows a configuration example in which the image pickup device 18 and the display control device 16 are connected via the access point 28. Figure 1 shows an example in which the image pickup device 18 and the display control device 16 are connected in ad hoc mode, but this figure shows an example in which they are connected in infrastructure mode. The image pickup device 18 and the display control device 16 each establish wireless communication with the access point 28, and the image pickup device 18 transmits an image to the display control device 16 via the access point 28. The access point 28 is connected to the image server 26 via the network 24, and the imaging device 18 transfers the captured image to the image server 26 via the access point 28 and the network 24 and stores the captured image in a predetermined area. When the captured image is reproduced, it is appropriately received from the image server 26 via the access point 28.
【0057】
Wireless communication via the access point 28 as shown in this figure is suitable because communication settings and communication control are simplified, especially when the image pickup device 18 and the display control device 16 are connected in a one-to-n, n-to-one, or n-to-n manner. Is. Further, since the image captured by the image pickup device 18 is stored in the image server 26, the display control device 16 receives the image to be displayed by the display system 12 from the image server 26 instead of transmitting the image to be displayed from the image pickup device 18. You may. Further, the area for storing the image is not necessarily limited to the image server 26, and may be stored in the image pickup device 18 or the display control device 16. In that case, the image pickup device 18 provides information indicating in which area the image is stored. And the display control device 16. As a result, the user can handle the image without being aware of where the image is stored.
【0058】
The present invention has been described above based on the embodiments. This embodiment is an example, and it will be understood by those skilled in the art that various modifications are possible for the combination of each component and each processing process, and that such modifications are also within the scope of the present invention. ..
【0059】
According to the sixth function in the embodiment, information indicating the connection status is displayed on the projection screen 22 projected by the display system 12 and the display unit screen 106 of the image pickup apparatus 18, respectively. In this case, the connection status displayed on the projection screen 22 and the connection status displayed on the display unit screen 106 may be different types of information or the same type of information. As a modification, not only the type of connection status may be matched on the projection screen 22 and the display unit screen 106, but also almost all the screen contents may be matched by displaying the same image on both. As a result, the user can confirm the same content regardless of whether the display unit screen 106 or the projection screen 22 is viewed, which is highly convenient.
【0060】
[Effect of the invention]
According to the present invention, it is possible to enhance the convenience of displaying an image in a digital camera by using a projector.
[Simple explanation of drawings]
FIG. 1 is a diagram showing a basic configuration of a captured image output system.
FIG. 2 is a functional block diagram showing a basic configuration of a display control device.
FIG. 3 is a functional block diagram showing a basic configuration of an imaging device.
FIG. 4 is a functional block diagram showing a detailed configuration of a control unit of a display control device.
FIG. 5 is a functional block diagram showing a detailed configuration of a control unit of an imaging device.
FIG. 6 is a flowchart showing a process of transmitting a captured image from an imaging device to a display control device.
FIG. 7 is a flowchart showing a process of transmitting a captured image from an imaging device to a display control device.
FIG. 8 is a diagram showing an example of a connection configuration between a display system and an image pickup device in a captured image output system.
FIG. 9 is a diagram illustrating a screen for selecting a source of an image.
FIG. 10 is a diagram illustrating a screen for selecting an image transmission destination.
FIG. 11 is a flowchart showing a process of displaying images transmitted from three imaging devices on a first-come, first-served basis.
FIG. 12 is a diagram showing display contents on a projection screen projected by a display system.
FIG. 13 is a diagram showing display contents on a display unit screen of an image pickup apparatus.
FIG. 14 is a diagram showing a configuration example in which an image pickup device and a display control device are connected via an access point.
[Explanation of symbols]
Ten Captured image output system, 12 display system, 14 display device, 16 display control device, 18 imaging device, 20 wireless communication, 38 display unit, 40 control unit, 54 control unit.
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US8279258B2 | Cited by | United States of America | Applicant |
| JP2010008937A | Cited by | Japan | Examiner |
| JP2006339781A | Cited by | Japan | Search report |
| WO2013051539A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
| US11818458B2 | Cited by | United States of America | Applicant |
| JP2011172097A | Cited by | Japan | Examiner |
| JP2011109453A | Cited by | Japan | Search report |
| US8760399B2 | Cited by | United States of America | Applicant |
| US9137460B2 | Cited by | United States of America | Applicant |
| JP2006253854A | Cited by | Japan | Search report |
| JP2010072352A | Cited by | Japan | Examiner |
| JP2007158406A | Cited by | Japan | Examiner |
| JP2007158408A | Cited by | Japan | Examiner |
| JP2010140387A | Cited by | Japan | Examiner |
| US11153472B2 | Cited by | United States of America | Applicant |
| US8780274B2 | Cited by | United States of America | Applicant |
| KR101025036B1 | Cited by | Republic of Korea | Search report |
| US11153472B2 | Cited by | United States of America | Applicant |
| US8384660B2 | Cited by | United States of America | Applicant |
| US11818458B2 | Cited by | United States of America | Applicant |
| KR100680748B1 | Cited by | Republic of Korea | Search report |
| JP2005026853A | Cited by | Japan | Search report |
| US9432644B2 | Cited by | United States of America | Applicant |
| US8933984B2 | Cited by | United States of America | Applicant |
| JP2010008937A | Cited by | Japan | Search report |
| JP2013093823A | Cited by | Japan | Examiner |
| WO2010001941A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
14 members in 4 offices
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 2003006453 | Japan | A | |
| JP20030006453 | – | – | – |
Members14
| Document | Office | Kind | |
|---|---|---|---|
| GB0330108D0 | United Kingdom | D0 | |
| US2004140971A1 | United States of America | A1 | |
| GB2397717A | United Kingdom | A | |
| CN1517778A | China | A | |
| JP2004221908AThis record | Japan | A | |
| GB0509839D0 | United Kingdom | D0 | |
| GB2412265A | United Kingdom | A | |
| GB2397717B | United Kingdom | B | |
| GB2412265B | United Kingdom | B | |
| US2008136918A1 | United States of America | A1 | |
| US7463216B2 | United States of America | B2 | |
| CN1517778B | China | B | |
| CN101820493A | China | A | |
| US2011227811A1 | United States of America | A1 |
8 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Re-examination (zenchi) completed and case transferred to appeal boardAppealJAPANESE INTERMEDIATE CODE: A912A912 | A912 | |
| Transfer to examiner for re-examination before appeal (zenchi)AppealJAPANESE INTERMEDIATE CODE: A911A911 | A911 | |
| Written amendmentJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Decision of refusalJAPANESE INTERMEDIATE CODE: A02A02 | A02 | |
| Written amendmentJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 | |
| Report on retrievalJAPANESE INTERMEDIATE CODE: A971007A977 | A977 | |
| Written request for application examinationJAPANESE INTERMEDIATE CODE: A621A621 | A621 |
Numbers
- Publication
- 2004221908
- Publication, DOCDB
- 2004221908
- Publication, EPODOC
- JP2004221908
- Application
- 6453
- Application, DOCDB
- 2003006453
- Application, EPODOC
- JP20030006453
Titles2
- Japanese
- 表示制御方法とこの方法を利用可能な撮影画像出力システム、表示制御装置、液晶プロジェクタ、およびデジタルカメラ
- English
- Display control methods and captured image output systems, display control devices, LCD projectors, and digital cameras that can use this method.
Classification
- CPC, 9
- H04N1/00283
- G06F3/14
- H04N5/74
- H04N2201/0015
- H04N2201/0041
- H04N2201/0043
- H04N2201/0044
- H04N2201/0055
- H04N2201/0084
- IPC, 12
- H04N5 232
- G03B19 00
- G06F3 14
- G06F17 00
- G09G5 00
- H04L12 00
- H04L12 28
- H04N1 00
- H04N5 74
- H04N7 14
- H04N7 18
- H04N7 24