Patent ID: 9219892
Filing Date: 2015-12-22
Classification: H04N

Abstract:
1. A camera apparatus comprising: a specific light projector configured to emit specific light in a wavelength region corresponding to any one of the three primary colors of light; three light receivers sensitive to light in wavelength regions corresponding to the three primary colors of light, respectively; an image taking unit configured to take an image by exposing the light receivers; a marker pulse generator configured to generate an exposure timing pulse for the image taking unit, and an emission timing pulse for the specific light projector, on the basis of a reference signal expressed with a periodic function; a color image creator configured to create a color image from the image taken by the image taking unit; and a synchronous detection processor configured to create a detection image by performing a synchronous detection process on the image taken by the image taking unit by use of the reference signal, wherein the three light receivers include: a first pixel commonly sensitive to light in a wavelength region corresponding to the specific light and a wavelength region corresponding to one color out of the remaining two colors of the three primary colors of light excluding the wavelength region of the specific light; a second pixel commonly sensitive to light in a wavelength region corresponding to the specific light and a wavelength region corresponding to the other color out of the remaining two colors of the three primary colors of light excluding the wavelength region of the specific light; and a third pixel sensitive to light in the wavelength region corresponding to the specific light.