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文章基本信息

  • 标题:Low-Complexity Multiple Description Coding of Video Based on 3D Block Transforms
  • 本地全文:下载
  • 作者:Andrey Norkin ; Atanas Gotchev ; Karen Egiazarian
  • 期刊名称:EURASIP Journal on Embedded Systems
  • 印刷版ISSN:1687-3955
  • 电子版ISSN:1687-3963
  • 出版年度:2007
  • 卷号:2007
  • DOI:10.1155/2007/38631
  • 出版社:Hindawi Publishing Corporation
  • 摘要:

    The paper presents a multiple description (MD) video coder based on three-dimensional (3D) transforms. Two balanced descriptions are created from a video sequence. In the encoder, video sequence is represented in a form of coarse sequence approximation (shaper) included in both descriptions and residual sequence (details) which is split between two descriptions. The shaper is obtained by block-wise pruned 3D-DCT. The residual sequence is coded by 3D-DCT or hybrid, LOT+DCT, 3D-transform. The coding scheme is targeted to mobile devices. It has low computational complexity and improved robustness of transmission over unreliable networks. The coder is able to work at very low redundancies. The coding scheme is simple, yet it outperforms some MD coders based on motion-compensated prediction, especially in the low-redundancy region. The margin is up to 3 dB for reconstruction from one description.

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