使用数据隐藏的低延迟分布式视频编码

K. R. Vijayanagar, Bowen Dan, Joohee Kim
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引用次数: 5

摘要

分布式视频编码(DVC)是研究领域的热门话题,近年来出现了几种不同的实现方法。DVC已经被提出作为一种解决方案,用于电池资源有限和硬件复杂性低的应用,因此需要一个低复杂性的编码器。理想的应用是远程监视/监控或实时视频会议。然而,目前的解决方案使用迭代可解码的信道码,如LDPCA或Turbo码,它们具有较大的延迟。使实时通信成为可能。该架构有效地利用了Skip块来降低比特率,消除了WZ (Wyner-Ziv)信道的迭代解码特性,并使用了简单的基于数据隐藏的压缩算法。这大大降低了解码过程的时间复杂度,同时仍然保持比H.264/AVC Intra编码和其他当前DVC解决方案更好的率失真性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Low delay Distributed Video Coding using data hiding
Distributed Video Coding (DVC) is a popular topic in the research community and the past years have seen several different implementations. DVC has been proposed as a solution for applications that have limited battery resources and low hardware complexity, thus necessitating a low complexity encoder. An ideal application would be in remote surveillance/monitoring or live video conferencing. However, current solutions use iteratively decodable channel codes like LDPCA or Turbo codes that have large latencies. In order to make real-time communication possible. The proposed architecture makes efficient use of Skip blocks to reduce the bitrate, eliminates the iterative decoding nature of the Wyner-Ziv (WZ) channel and uses a simple data-hiding based compression algorithm. This drastically cuts down on the time complexity of the decoding procedure while still maintaining an rate-distortion performance better than that of H.264/AVC Intra coding and other current DVC solutions.
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