Patent ID: 8462237

Claim:
A solid-state image pickup device comprising: a sensor unit in which pixels formed of photoelectric transducers which convert a signal of light condensed by an optical lens which condenses light and whose focal position differs depending on a wavelength of the light into electric signals and optical filters which are arranged on front surfaces of the photoelectric transducers and separate the wavelength of the light are two-dimensionally arranged, and which separates the signal of light into at least 2 or more wavelength components to generate electrical wavelength signals; and a signal processing circuit which processes the at least 2 wavelength signals generated by the sensor unit, wherein the signal processing circuit includes: a plurality of contour signal extraction circuits which receive the at least 2 wavelength signals to extract respective contour signals; and a contour signal selection circuit which receives a control signal and the plurality of contour signals extracted by the plurality of contour signal extraction circuits, and selects and outputs a contour signal having a desired wavelength band in accordance with the control signal, and wherein the optical filters are color filters which separate the wavelength of the light into an all wavelength band, a blue wavelength band, a green wavelength band, and a red wavelength band, and the sensor unit generates wavelength signals associated with the all wavelength band, the blue wavelength band, the green wavelength band, and the red wavelength band as the wavelength signals.