dct -金字塔视频编码的漂移补偿结构

International Symposium on VIPromCom Video/Image Processing and Multimedia Communications Pub Date : 2002-11-07 DOI:10.1109/VIPROM.2002.1026675

R. Atta, M. Ghanbari

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引用次数: 4

摘要

为了提高视频编码的空间可扩展性，提出了一种基于DCT金字塔的分层视频编码方案。提出了一种消除视频分辨率降低带来的漂移误差的方法。提出了一种从高分辨率运动向量中预测低分辨率视频运动向量的新算法。仿真结果表明，该方案比H.263+具有更高的编码效率和更低的编码复杂度。

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A drift compensation architecture for DCT-pyramid video coding

A new-layered video coding scheme is proposed for efficient spatial scalability based on the DCT pyramid. The proposed scheme is introduced to eliminate the drift error associated with reduced resolution video. A new algorithm to predict the motion vector of the reduced resolution video from the higher resolution motion vectors is presented. Based on simulation results, the proposed scheme achieves better coding efficiency and lower complexity than H.263+ spatial scalability.

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International Symposium on VIPromCom Video/Image Processing and Multimedia Communications

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