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A Novel Data Hiding Algorithm Using Normal Vectors of 3D Model

  • Chung-Hsien Chang
  • Chung-Ming Wang
  • Yuan-Yu Tsai
  • Yu-Ming Cheng
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4035)

Abstract

This paper presents a novel data hiding algorithm for 3D polygonal models whose vertices have given normal vectors. The key idea of our algorithm is to embed messages by adjusting the normal vector of a vertex according to the pivot vector. All vertices in a 3D model can be embedded with multiple-bit payloads by using multiple pivot vectors. The distortion is measured by the angle between the adjusted normal vector and the original normal vector to distortion. A distortion coefficient is also introduced to control the distortion rate during the embedding process. Experimental results demonstrate that our algorithm can achieve high data capacity (up to 12 bits per normal vector), and is robust against rotation, translation, and uniform scaling attacks.

Keywords

Normal Vector Cover Model Data Hiding Distortion Rate 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 2006

Authors and Affiliations

  • Chung-Hsien Chang
    • 1
  • Chung-Ming Wang
    • 1
  • Yuan-Yu Tsai
    • 1
  • Yu-Ming Cheng
    • 1
  1. 1.Institute of Computer ScienceNational Chung Hsing UniversityTaichungTaiwan

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