The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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3D Mesh Model Watermarking Based on POCS

POCS에 기반한 3D 메쉬 모델 워터마킹

  • 이석환 (경북대학교 대학원 전자공학과) ;
  • 권기룡 (부산대학교 컴퓨터전자공학부) ;
  • 이건일 (경북대학교 대학원 전자공학과)
  • Published : 2004.11.01
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Abstract

In this paper, we proposed the 3D mesh watermarking using projection onto convex sets (POCS). 3D mesh is projected iteratively onto two constraint convex sets until it satisfy the convergence condition. These sets consist of the robustness set and the invisibility set that designed to embed watermark Watermark is extracted without original mesh by using the decision values and the index that watermark is embedded. Experimental results verified that the watermarked mesh have the robustness against mesh simplification, cropping, affine transformation, and vertex randomization as well as the invisibility.

본 논문에서는 POSC 기반의 3D 메쉬 워터마킹 방법을 제안하였다. 제안한 방법에서는 3D 메쉬를 두 가지의 제약 조건 집합으로 수렴 조건을 만족할 때까지 반복 투영한다. 이들 집합은 워터마크를 삽입하기 위한 강인성 집합 및 비가시성 집합으로 구성된다. 원 모델없이 워터마크를 추출하기 위하여 제안한 방법에서는 워터마크가 삽입되는 위치 정보 및 결정치를 이용한다. 실험 결과로부터 제안한 방법이 메쉬 간단화, 절단, 아핀 변환, 및 랜덤 잡음 첨가 등의 공격에 우수한 강인성을 가짐을 확인하였다.

Keywords

References

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