Patent ID: 7697046
Filing Date: 2010-04-13
Classification: G06T,H04N

Abstract:
1. An image signal processing device, for processing each pixel signal that is output from each pixel in a solid-state imaging device having a plurality of pixels, including at least first pixels having a first color, second pixels having a second color, and third pixels having a third color; said first, second, and third pixels being regularly arranged such that, when each of said pixels is defined as a center pixel of a k×k matrix, the pixels having a same color are arranged according to one of a plurality of pixel-array patterns including at least first- and second-array patterns in said k×k matrix, said device comprising: an interpolation processor that includes at least a first interpolation portion and a second interpolation portion, said first interpolation portion presuming which pixels in said k×k matrix have the same color as said first, second, or third color according to said first-array pattern, and conducting pixel interpolation for each said center pixel so as to generate a first signal group including first, second, and third color presumed interpolation signals for each said center pixel from each pixel data of the presumed pixels having the same color as said first, second, or third color, according to said first-array pattern, said second interpolation portion presuming which pixels in said k×k matrix have the same color as said first, second, or third color according to said second-array pattern, and conducting pixel interpolation for each said center pixel so as to generate a second signal group including first, second, and third color presumed interpolation signals for each said center pixel from each of pixel data of the presumed pixels having the same color as said first, second, or third color, according to said second-array pattern, a determination processor that determines a pixel-array pattern in said k×k matrix to be a pattern selected from said plurality of pixel-array patterns, one of said signal groups generated in the case of presumed color arrangement according to said determined pixel-array pattern being selected as a signal group of interpolation signals for said center pixel, said determination processor selecting said first signal group as the signal group of interpolation signals for said center pixel when the pixel-array pattern of said k×k matrix is determined to be said first-array pattern, and selecting said second signal group as the signal group of interpolation signals when the pixel-array pattern of said k×k matrix is determined to be said second-array pattern.