Abstract: The major challenge in area stereo matching algorithms is to find appropriate window size and shape.Phase congruency is robust to noise and can reflect the gray changes.With these benefits,the paper first detected image and determined pixels characteristics according to phase congruency.Then,different window was used to match according to different feature pixels.After using cost function which combined with non-parametric measure and gray va-lue,the final disparity map was obtained.The result of experiment indicates that the algorithm can generate more accurate dispari-ty map.

Key words: Variable window,Area-based matching,Phase congruency