Joint texture-shape optimization for MPEG-4 multiple video objects

  • Authors:

  • Zhenzhong Chen;King Ngi Ngan

  • Affiliations:

  • Dept. of Electron. Eng., Chinese Univ. of Hong Kong, China;-

  • Venue:
  • IEEE Transactions on Circuits and Systems for Video Technology
  • Year:
  • 2005

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Abstract

In this paper, we present a uniform framework for optimal multiple video object bit allocation in MPEG-4. We combine the rate-distortion (R-D) models for the texture and shape information of arbitrarily shaped video objects to develop the joint texture-shape R-D models. The dynamic programming technique is applied to optimize the bit allocation for the multiple video objects. The simulation results demonstrate that the proposed joint texture-shape optimization algorithm outperforms the MPEG-4 verification model on the decoded picture quality.