CPC G01B 11/002 (2013.01) [G01B 11/25 (2013.01)] | 7 Claims |
1. A three-dimensional measuring apparatus comprising:
a projector configured to irradiate a light of a predetermined wavelength to a target;
an imaging camera having a plurality of pixels to which a light reflected on the target is incident, each of the pixels outputting a pixel value corresponding to an intensity of the light incident; and
a controller configured to perform shape calculation of a three-dimensional shape of the target on a basis of the pixel value, wherein
the pixels include a plurality of high-sensitivity pixels and a plurality of low-sensitivity pixels having a spectral sensitivity characteristic having a lower ratio of output to input of the predetermined wavelength than a spectral sensitivity characteristic of the high-sensitivity pixels,
the high-sensitivity pixels and the low-sensitivity pixels are arranged alternately,
the pixels include the high-sensitivity pixels and the low-sensitivity pixels at the same ratio,
the predetermined wavelength is a wavelength of green,
the pixels are arranged in a Bayer arrangement in which red, green, and blue pixels are arranged in a predetermined pattern,
each of the high-sensitivity pixels is the green pixel in the Bayer arrangement,
the low-sensitivity pixels include an equal number of the blue pixels and the red pixels in the Bayer arrangement, and
the controller is configured to perform the shape calculation of a three-dimensional shape of the target on a basis of the pixel value of the high-sensitivity pixels having detected the light of the predetermined wavelength and the pixel value of the low-sensitivity pixels having detected the light of the predetermined wavelength.
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