Image-mapped point cloud with ability to accurately represent point coordinates
Abstract
A laser scanner scans a scene to form a point cloud representing points on a surface within the scene. The point cloud is used to create a corresponding visual representation of the point cloud from a single eye point that is displayed as an image array, such as a cube map, on a computer screen. Each point of the point cloud is represented on the computer screen as a pixel having a value other than a background value. An offset is determined between a reference position of the pixel and an intersection point, which is the point at which a ray from the point to the scanning position intersects a plane coincident with plane of the computer screen including the pixel. The offset is stored in an offset grid, whereby each pixel of the image array has a corresponding offset value in the offset grid. That is, the invention provides for encoding actual point coordinates with respect to the pixels of the image array by storing depth and angular offsets at each pixel in the image array that has an associated point. If the point spacing in a certain region is wider than the image array pixels, the gaps can be filled with, for example, RGB values to make the displayed image continuous.
Term
Projected expiry 4 October 2027.
- Priority
- Filed
- Published
- Today
- Projected expiry
11 members in 6 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 85144406 | United States of America | P | |
| 64953907 | United States of America | A | |
| 2007021298 | United States of America | W |
Members11
| Document | Office | Kind | |
|---|---|---|---|
| US2008088623A1 | United States of America | A1 | |
| WO2008048424A2 | World Intellectual Property Organization (WIPO) | A2 | |
| WO2008048424A3 | World Intellectual Property Organization (WIPO) | A3 | |
| EP2092487A2 | European Patent Office (EPO) | A2 | |
| JP2010507137A | Japan | A | |
| EP2092487B1 | European Patent Office (EPO) | B1 | |
| AT503238T | Austria | T | |
| ATE503238T1This record | Austria | T1 | |
| DE602007013461D1 | Germany | D1 | |
| US7990397B2 | United States of America | B2 | |
| JP4819164B2 | Japan | B2 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased as to paragraph 5 lit. 3 law introducing patent treatiesCeasedRER | RER |
Numbers
- Application
- 7839239
Titles2
- German
- BILDABGEBILDETE PUNKTWOLKE MIT DER FÄHIGKEIT ZUR GENAUEN REPRÄSENTATION VON PUNKTKOORDINATEN
- English
- IMAGE-MAPPED POINT CLOUD WITH THE ABILITY TO ACCURATELY REPRESENT POINT COORDINATES
Classification
- CPC, 2
- G06T15/00
- G06T17/00
- IPC, 1
- G06T15 00