Patent ID: 6960752

Claim:
A calibration camera device for geometrical correction or color correction, comprising: an optical lens part to which a lens is attached, an optical filter part which is provided in front of said optical lens part on an optical path and to which at least three optical filters are attached, a filter switching part to select any one from among said optical filters and dispose said selected one optical filter at a photometric point on said optical path, a near-infrared light cutting part which is provided in a rear of said optical lens part and to which a near-infrared light cutting filter is attached, a monochrome capturing part which is provided in a rear of said near-infrared light cutting part on said optical path and includes a monochrome imaging element, an image storing part for storing a monochrome image which is captured by said monochrome capturing part, and a gain correction part for conducting sensitivity correction on said monochrome image which is captured by said monochrome capturing part through said selected one optical filter which is selected by said filter switching part.