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Watermarking Technique for Authentication of 3-D Polygonal Meshes

  • Wan-Hyun Cho
  • Myung-Eun Lee
  • Hyun Lim
  • Soon-Young Park
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3304)

Abstract

In this paper, we present a watermarking technique for authentication of 3-D polygonal meshes. The proposed technique is based on a wavelet-based multiresolution analysis to convert an original polygonal mesh model into a simplified mesh model and wavelet coefficient vectors. The embedding procedure is to modify the vertex of a simplified mesh model at a low resolution according to the order of norms of the wavelet coefficient vectors using a look-up table. The watermark extraction process is to restore the binary logo pattern by extracting a binary watermark bit from a look-up table corresponding to the watermarked simple mesh. The experimental results show that the proposed method is invariant to the location, scale and rotation transformation while detecting unauthorized modifications.

Keywords

Mesh Model Subdivision Scheme Multiresolution Analysis Watermark Technique Polygonal Mesh 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Wan-Hyun Cho
    • 1
  • Myung-Eun Lee
    • 2
  • Hyun Lim
    • 3
  • Soon-Young Park
    • 2
  1. 1.Department of StatisticsChonnam National UniversitySouth Korea
  2. 2.Department of Electronics EngineeringMokpo National UniversitySouth Korea
  3. 3.DVMM Lab., Dept. of Electrical EngineeringColumbia UniversityUSA

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