Feature-Based Error Concealment for Object-Based Video(Multimedia Systems for Communications)

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概要

• 論文の詳細を見る

• In this paper, a new error concealment algorithm for MPEG-4 object-based video is presented. The algorithm consists of a feature matching step to identify temporally corresponding features between video frames and an affine parameter estimation step to find the motion of the feature points. In the feature matching step, an efficient cross-radial search (CRS) method is developed to find the best matching points. In the affine parameter estimation step, a non-iterative least squares estimation algorithm is developed to estimate the affine parameters. An attractive feature of the algorithm is that the shape data and texture data are handled by the same method. Unlike previous methods, this unified approach works for the case where the video object undergoes a drastic movement, such as a sharp turn. Experimental results show that the proposed algorithm performs much better than previous approaches by about 0.3-2.8 dB for shape data and 1.6-5.0 dB for texture data.

• 社団法人電子情報通信学会の論文
• 2005-06-01

著者

• Chen Liang-gee

  Graduate Institute Of Electronics Engineering And The Department Of Electrical Engineering National

• LEE Pei-Jun

  Department of Electrical Engineering, St. John's & St. Mary's Institute of Technology, Tamsui

• CHEN Homer

  Graduate Institute of Communication Engineering and the Department of Electrical Engineering, Nation

• WANG Wen-June

  Department of Electrical Engineering, National Central University, Chung-Li

• Lee Pei-jun

  Department Of Electrical Engineering St. John's & St. Mary's Institute Of Technology T

• Chen Homer

  Graduate Institute Of Communication Engineering And The Department Of Electrical Engineering Nationa

• Wang Wen-june

  Department Of Electrical Engineering National Central University Chung-li

• Wang Wen-june

  Department Of Electrical Engineering National Central University

関連論文

• Hardware-Efficient Architecture Design for Zerotree Coding in MPEG-4 Still Texture Coder
• Feature-Based Error Concealment for Object-Based Video(Multimedia Systems for Communications)
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• The Active Control Design for Hybrid DMFC System Based on Fuzzy Logic

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