Abstract: In order to improve the universality of the projector projection scene, a method of depth perception geometric correction on the irregular projection surface was proposed. With the theoretical analysis of the coupling, the weaken coupling solution was proposed. The depth of the irregular projection surface could be acquired by the encoded color structured light. After that, the feedback was used to solve the maximum visual projection area, the dynamic slicing algorithm for the irregular surfaces depth information was used to pull away the stratification planes, so a corresponding homography matrix for each stratification plane was calculated and the homography matrix set was constructed to eliminate the geometric distortion of the projected image. Through the experimental analysis, it is known that the projected image is projected to the irregular surface, and the corrected projection image can be in line with the observer normal visual perception

Key words: computer vision, irregular surfaces, geometric calibration, color structured light, depth perception