Generalized bilinear interpolation of motion vectors for quad-tree mesh

Chih Cheng Wei, Chin-Hsing Chen

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

MPEG-4 proposes a method in which an image is represented as a "mesh" and motion compensation is accomplished by spatial transformation to reduce temporal redundancy in video compression. The motion vectors of nodes are estimated and the displacement of each pixel within the patches is interpolated from its corresponding nodes. In the quad-tree mesh, a simple patch becomes complex when it is not split but its neighboring is. In this paper, we proposed the generalized bilinear interpolation to overcome the discontinuity problem which is resulted if the bilinear interpolation is applied to a complex patch directly. The patch can be deformed from a rectangle to a quadrilateral or a polygon by the generalized bilinear interpolation. Experimental results showed that higher PSNR are also obtained from our proposed method than those from others.

原文English
主出版物標題Proceedings - 2008 4th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2008
頁面635-638
頁數4
DOIs
出版狀態Published - 2008
事件2008 4th International Conference on Intelligent Information Hiding and Multiedia Signal Processing, IIH-MSP 2008 - Harbin, China
持續時間: 2008 八月 152008 八月 17

Other

Other2008 4th International Conference on Intelligent Information Hiding and Multiedia Signal Processing, IIH-MSP 2008
國家China
城市Harbin
期間08-08-1508-08-17

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence
  • Computer Graphics and Computer-Aided Design
  • Signal Processing

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