Moisture sensor utilizing stereo imaging with an image sensor

At least one optical system which operates so that the humidity sensing system of the present invention may carry out image formation of the 1st and 2nd sensor arrays and the portion with the same surface at both of 1st and 2nd sensor arrays, It is communicating with the sensor array and the processing system which operates so that the image from a sensor array may be analyzed and humidity may be detected is included. The sensor array of the same sensor array is separate, namely, can be made into the two-dimensional sensor array which is a different portion. This system can be used for controlling a vehicles windshield wiper. In order to distinguish a nearsightedness field subject and a long-sight field subject, a processing system can be constituted so that the image acquired from the 1st sensor array may be deducted from the image acquired from the 2nd sensor array. [Selection figure] Fig. 2