IN REVERSE ENGINEERING THE METHOD FOR EXTRACTING AND MODELING BOUNDARY OF COMPLEX SURFACE BASED ON TRINOCULAR STEREO VISION

One of key research issues in reverse engineering is the geometric modeling of complex surface. How to extract boundary of complex surface is a main step. It gives a practical method of boundary extracting and modeling by using trinocular stereo-vision. Firstly, the characteristic points of the surface boundary are extracted from one image, then 3D-coordinate of points are acquired by image matching, so the B-spline of surface boundary is taken.