基本信息:
- 专利标题： Methods and devices for 3d object protection using surface subdivision
- 申请号：EP13165980.7 申请日：2013-04-30
- 公开(公告)号：EP2665033B1 公开(公告)日：2018-08-29
- 发明人： Diehl, Eric , Heen, Olivier , Maetz, Yves , Eluard, Marc
- 申请人： Thomson Licensing
- 申请人地址： 1-5, rue Jeanne d'Arc 92130 Issy-les-Moulineaux FR
- 专利权人： Thomson Licensing
- 当前专利权人： Thomson Licensing
- 当前专利权人地址： 1-5, rue Jeanne d'Arc 92130 Issy-les-Moulineaux FR
- 代理机构： de la Fouchardière, Marie-Noëlle
- 优先权： EP12305535 20120514
- 主分类号： G06T1/00
- IPC分类号： G06T1/00
摘要：
A method of protecting a graphical object (410) represented by a list of vertices and a list of surfaces, each surface being defined by a number N vertices. A device (310) selects (110) a surface S with N vertices; computes (120) a new vertex d using a random or pseudo-random function; inserts (130) the new vertex d into the list of vertices; creates (140) N new surfaces S1-SN from the surface S and the new vertex d; and replaces (150) the selected surface S by the new surfaces S 1- SN in the list of surfaces. The device (310) preferably iterates the method. The device (310) may shuffle the list of vertices with the inserted vertices. Also provided is an unprotection method and corresponding devices and computer readable storage media.