首页> 外文会议>International Conference on Advanced Concepts for Intelligent Vision Systems(ACIVS 2007); 20070828-31; Delft(NL) >Bridging the Gap: Transcoding from Single-Layer H.264/AVC to Scalable SVC Video Streams
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Bridging the Gap: Transcoding from Single-Layer H.264/AVC to Scalable SVC Video Streams

机译:缩小差距:从单层H.264 / AVC到可扩展SVC视频流的转码

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Video scalability plays an increasingly important role in the disclosure of digital video content. Currently, the scalable extension of the H.264/AVC video coding standard (SVC) is being finalized, which provides scalability layers for state-of-the-art H.264/AVC video streams. Existing video content that is coded using single-layer H.264/AVC, however, cannot benefit from the newly developed scalability features. Here, we discuss our architecture for H.264/AVC-to-SVC transcoding, which is able to derive SNR scalability layers from existing H.264/AVC bit-streams. Results show that the rate-distortion performance of our architecture approaches the optimal decoder-encoder cascade within 1 to 2 dB. Timing results indicate that intelligent conversion techniques are required, and that transcoding can significantly reduce the required computation time.
机译:视频可伸缩性在数字视频内容的公开中起着越来越重要的作用。当前,H.264 / AVC视频编码标准(SVC)的可伸缩性扩展正在最终确定,这为最新的H.264 / AVC视频流提供了可伸缩性层。但是,使用单层H.264 / AVC编码的现有视频内容无法从新开发的可伸缩性功能中受益。在这里,我们讨论了用于H.264 / AVC到SVC的代码转换的体系结构,该体系结构能够从现有的H.264 / AVC比特流中导出SNR可伸缩性层。结果表明,我们的体系结构的速率失真性能接近1至2 dB内的最佳解码器-编码器级联。时序结果表明需要智能转换技术,并且代码转换可以显着减少所需的计算时间。

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