1. A video signal processing method used for a stereo video including a standard video having a plurality of pixels and a corresponding video having a plurality of pixels corresponding thereto, for detecting a corresponding pixel in the corresponding video which corresponds to a standard pixel in the standard video, the video processing method comprising the steps of: preparing a standard window with a given size surrounding a standard pixel among the plurality of pixels in the standard video; selecting a plurality of candidate pixels among the plurality of pixels in the corresponding video; preparing a plurality of candidate windows, each having the same size as the standard window and surrounding each candidate pixel in the corresponding video; calculating a MDL (Minimum Description Length) standard value using pixel values of all the pixels in the standard window, pixel values of all the pixels in the candidate window, and the size thereof for each candidate window, a smaller MDL standard value representing a larger similarity between the former window and the latter window; and identifying the candidate pixel surrounded by the candidate window having the smallest MDL value as the pixel corresponding to the standard pixel.