Due to the problems in Geometric Modeling for Historical Cultural Relics(HCR)

a new geometric modeling mending method based on many knot spline interpolation is proposed in this paper. Using Many-Knot spline’s local explicit interpolation properties

“null holes”generated in image based geometric modeling in stereo vision system can be filled by many knot spline interpolation algorithm

while geometric modeling for partly damaged HCR can also be mended by Many-Knot spline interpolation algorithm.