• Title/Summary/Keyword: Invisible constraint set

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3D Mesh Model Watermarking Based on POCS (POCS에 기반한 3D 메쉬 모델 워터마킹)

  • Lee Suk-Hwan;Kwon Ki-Ryong;Lee Kuhn-Il
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.29 no.11C
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    • pp.1592-1599
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    • 2004
  • 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.