Backward-adaptive lossless compression of video sequences
Backward-adaptive lossless compression of video sequences
复制标题
视频序列的向后自适应无损压缩
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
A. Meo
中科院分区：
文献类型：
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作者：
Elias S. G. Carotti;Juan Carlos De Martin;A. Meo
我们提出了用于视频序列无损编码的新的低复杂度压缩算法。这种新的编码器通过利用时间、空间和光谱冗余，产生比单个图像的无损压缩更好的压缩比。该编码器的主要特点是像素邻域后向自适应时间预测器、帧内空间预测器和频谱分量的差分编码方案。残余误差由基于上下文的算术编码器进行熵编码。这种新型无损视频编码器的性能优于最先进的无损图像压缩技术，可实现更高效的视频存储和通信。
We present our new low-complexity compression algorithm for lossless coding of video sequences. This new coder produces better compression ratios than lossless compression of individual images by exploiting temporal as well as spatial and spectral redundancy. Key features of the coder are a pixel-neighborhood backward-adaptive temporal predictor, an intra-frame spatial predictor and a differential coding scheme of the spectral components. The residual error is entropy coded by a context-based arithmetic encoder. This new lossless video encoder outperforms state-of-the-art lossless image compression techniques, enabling more efficient video storage and communications.