Image sensing apparatus and method

Details Image sensing apparatus and method Image sensing apparatus and method

2002-09-18

2008-08-12

Vu, Ngoc-Yen (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S244000, C348S254000, C382S162000

Reexamination Certificate

active

07411614

ABSTRACT:
It is an object of this invention to reduce image sensing errors due to wrong white balance control using wrong color temperature information in an image sensing device capable of performing white balance control using a color image signal from an image sensing device. In order to attain the above object, when the color in the vicinity of the locus of a blackbody cannot be extracted in detection of a color temperature in a color image signal, color temperature information is corrected on the basis of a piece of color temperature information output from a calorimetric sensor, thereby controlling the white balance of a color image signal output from an image sensing element. The number of achromatic data extracted from the color image signal is counted. The color temperature is calculated by weighting a color temperature obtained from the color image signal and that obtained from the colorimetric sensor in accordance with the count, thereby performing white balance control.

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