Patent ID: 9609292
Date: 2017-03-28
CPC Classifications: H04N

Claim:
1. An imaging device comprising: a filter unit including a plurality of filter areas having different wavelength selectivities; a light receiving element array configured to receive light transmitted through the filter unit and output an image; a storage unit configured to store, for each of the filter areas, positional information indicating a position at which light transmitted through each of the filter areas is received on the light receiving element array; an area detector configured to detect, based on the positional information, an image area corresponding to the light transmitted through each of the filter areas from the image output by the light receiving element array when light from an object enters the filter unit; and a color detector configured to detect a color of the object based on an output value of the detected image area, wherein the positional information corresponding to each of the filter areas indicates a position on the light receiving element array which is identified by using a spectral-response-coincidence-degree indicating a degree of coincidence between a spectral responsivity of each pixel and a desired wavelength selectivity, the spectral responsivity of each pixel being calculated based on a set of images output by the light receiving element array when monochromatic inspection light with a different wavelength sequentially enters the filter unit.