H.261和H.263视频编码算法的性能分析

ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348) Pub Date : 1997-12-02 DOI:10.1109/ISCE.1997.658375

G. Ashraf, M. Chong

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引用次数: 8

摘要

视频压缩算法继续使视频应用适应越来越低的带宽。目前的任务是在电话线和无线网络上实现实时视频传输。H.263是最新的视频编码标准之一，它对H.261视频编码算法提出了几个增强。本文对H.261和H.263这两种标准视频编解码器进行了比较。比较的参数是这些编解码器的压缩程度和峰值信噪比。本文还评估了H.263在不同比特率和各种可选模式下的行为。从得到的结果来看，H.263在非常低的比特率(28.8 kHz及以下)下表现最好，如果将H.263准则的某些特性纳入其中，现有的编解码器可以表现得更好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance analysis of H.261 and H.263 video coding algorithms

Video compression algorithms continue to forge video applications to increasingly lower bandwidths. The onus at present is to enable real time video transmission on the telephone lines and the wireless network. H.263 is one of the latest video coding standards that proposes several enhancements to the H.261 video coding algorithm. This paper presents a comparison of these two standard video codecs, namely H.261 and H.263. The parameters of comparison are the degree of compression and peak signal to noise ratio (PSNR) achieved by these codecs. The paper also evaluates the behaviour of H.263 at different bit rates with various optional modes active. From the results obtained, it is concluded that H.263 performs best at very low bit rates (28.8 kHz and below), and existing codecs could perform much better if certain features of the H.263 guidelines are incorporated into them.

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ISCE '97. Proceedings of 1997 IEEE International Symposium on Consumer Electronics (Cat. No.97TH8348)

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