公开(公告)号：US20170213310A1

公开(公告)日：2017-07-27

申请号：US15387121

申请日：2016-12-21

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Heung-Kyu Lee ,  Han-Ul Jang ,  Hak-Yeol Choi ,  Jeongho Son ,  Seung-Min Mun ,  Dongkyu Kim ,  Jong-Uk Hou ,  Wookhyung Kim

IPC: G06T1/00 ,  G06T17/10 ,  G06T7/60 ,  G06T17/20 ,  G06T7/10

Abstract: Disclosed is a 3D mesh model watermarking method using a divisional scheme. The method of inserting a watermark into a three-dimensional (3D) mesh model includes: calculating a geometric primitive of the 3D mesh model; dividing the 3D mesh model into a plurality of mesh segments by using the geometric primitive; converting the mesh segments into mesh segments of a vertex distance-based coordinate system; inserting a predetermined watermark into each of the mesh segments of the vertex distance-based coordinate system; and restoring the mesh segments into which the watermark is inserted to a Cartesian coordinate system.

公开(公告)号：US10769745B2

公开(公告)日：2020-09-08

申请号：US15387121

申请日：2016-12-21

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Heung-Kyu Lee ,  Han-Ul Jang ,  Hak-Yeol Choi ,  Jeongho Son ,  Seung-Min Mun ,  Dongkyu Kim ,  Jong-Uk Hou ,  Wookhyung Kim

IPC: G06T1/00 ,  G06T7/10 ,  G06T17/10 ,  G06T7/60 ,  G06T17/20

Abstract: Disclosed is a 3D mesh model watermarking method using a divisional scheme. The method of inserting a watermark into a three-dimensional (3D) mesh model includes: calculating a geometric primitive of the 3D mesh model; dividing the 3D mesh model into a plurality of mesh segments by using the geometric primitive; converting the mesh segments into mesh segments of a vertex distance-based coordinate system; inserting a predetermined watermark into each of the mesh segments of the vertex distance-based coordinate system; and restoring the mesh segments into which the watermark is inserted to a Cartesian coordinate system.