Patent ID: 7944486

Claim:
An image signal processing method for generating a super-resolution image by using signals after a pixel mixture that are readout by a signal readout method of solid-state imaging device, said signal readout method of solid-state imaging device is a method that is applied to a solid-state imaging device with a color filter array (CFA) and multiple pixels, wherein said pixel mixture of a different number of pixels is performed for every readout signal in said solid-state imaging device, and said signals after said pixel mixture are readout, wherein said signals after said pixel mixture mean a first signal after said pixel mixture and a second signal after said pixel mixture, said first signal after said pixel mixture is obtained by performing said pixel mixture of predetermined L pixels (L<n×m) within (n×m) pixels (n and m are natural numbers) consisting of n pixels in a vertical direction and m pixels in a horizontal direction of said solid-state imaging device, said second signal after said pixel mixture is obtained by down sampling pixel signals of said (n×m) pixels without performing said pixel mixture of said (n×m) pixels, said image signal processing method characterized in that a registration processing of images is performed based on said first signal after said pixel mixture that is readout by said signal readout method of solid-state imaging device, and said super-resolution image is generated by performing a super-resolution processing based on displacement information obtained by said registration processing and said second signal after said pixel mixture that is readout by said signal readout method of solid-state imaging device.