Patent ID: 8903195

Claim:
An image processing system comprising: at least one processor, wherein the at least one processor is configured to include: a positional displacement amount calculation unit which calculates a positional displacement amount in a positional displacement between a target image and a reference image; a pixel operation unit which relates a pixel in the target image to a pixel in the reference image by specifying the pixel in the reference image nearest a position of the pixel in the target image when the target image is corrected so as to resolve the positional displacement, calculates a relative pixel differential vector which is a differential vector of respective vectors of the relative pixels, and determines whether or not the pixel in the target image is a pixel of a local area that does not conform to an assumed change with respect to the reference image, based on the relative pixel differential vector and an ellipsoid indicating uniform change of the reference image in a predetermined space, the ellipsoid relating to the pixel in the reference image; and an image generation unit which reconstructs one image from the reference image and the target image, according to information indicating where the pixel of the local area is present.