Approach of cultural relic fragments assembly on fractured surfaces driven by heat kernel signature
ZHANG Yong1,2, GENG Guohua1* , ZHOU Mingquan3
(1 School of Information Science and Technology, Northwest University, Xi′an 710127, Shaanxi， China;2 School of Information Engineering, Chaohu University, Chaohu 238000, Anhui, China;3 School of Information Science and Technology,Beijing Normal University,Beijing 100875,China)
Abstract:
In order to furtherly reduce the assembly error ,especially for the fragments incomplete or discontinuous, an approach of relic fragments assembly on fractured surfaces driven by heat kernel signature is proposed.Firstly,initial feature points are fixed based on local curvature value of fractured surfaces and extended properly later,then heat kernel signature values of feature points are calculated and feature pairs are acquired.Finally,fragments are assembled accurately.Compared to related algorithm by experiment,the approach proposed can reduce assembly error to 8%33%,the result indicates that the approach produce smaller assembly error and produce better assembly effect for the fragments with incomplete fracture surface contour.
KeyWords:
heat kernel signature；3D model；fractured surfaces；assembly
