1. An image processing system comprising: an image receiver to receive a first image sequence composed of first partial images captured at a plurality of time points, and a second image sequence composed of second partial images captured at the plurality of time points, each one of the first partial images and corresponding each one of the second partial images captured at substantially the same time point; a detection unit to detect a stitching position of each one of the first partial images and corresponding each one of the second partial images captured at substantially the same time point for the plurality of time points; a correction unit to correct the stitching position at the plurality of time points detected by the detection unit; and an image synthesis processing unit to synthesize each one of the first partial images and corresponding each one of the second partial images captured at substantially the same time point based on the stitching position information corrected by the correction unit for the plurality of the first and second partial images to generate a plurality of synthesis images.