华中科技大学学报（自然科学版）2024，Vol.52Issue(2)：49-54,6.DOI:10.13245/j.hust.240206
基于语义分割的三维模型版权保护算法
Copyright protection algorithm for 3D model based on semantic segmentation
摘要
Abstract
To solve the problem of reduced model accuracy caused by traditional digital watermarking techniques,and to protect local copyright,a three-dimensional model copyright protection algorithm based on semantic segmentation was proposed.In this algorithm,PointNet was first used for semantic segmentation of 3D model,and the model was divided into sub-blocks according to segmentation results.The copyright information was calculated in sub-blocks to protect local copyright.Then,a copyright information generation algorithm based on vertex norm and surface curvature was proposed.Since the copyright information was generated by means of coverless steganography,the method in this paper can protect the model as a whole and its sub-parts without modifying the model itself.Experimental results show that the proposed algorithm is robust to other kinds of attacks when it is completely resistant to similar transformation attacks.关键词
三维模型/点云模型/版权保护/无载体隐写/PointNetKey words
3D model/point cloud model/copyright protection/coverless steganography/PointNet分类
信息技术与安全科学引用本文复制引用
秦姣华,段振雄,向旭宇,谭云..基于语义分割的三维模型版权保护算法[J].华中科技大学学报（自然科学版）,2024,52(2):49-54,6.基金项目
国家自然科学基金资助项目(62372478) （62372478）
湖南省自然科学基金面上项目(2022JJ31019). （2022JJ31019）
