可变比特率MPEG-1编码视频流的统计特性

Proceedings of the Sixteenth National Radio Science Conference. NRSC'99 (IEEE Cat. No.99EX249) Pub Date : 1999-02-23 DOI:10.1109/NRSC.1999.760916

S.E. El-Nahas, E. Youssef, M. Moussa, I. Ahmed

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引用次数: 0

摘要

本文研究了可变比特率MPEG-1编码视频流的统计特性。我们已经检查了家庭视频质量PAL序列。本文考虑了三种序列。前两个片段来自一部埃及电影(Al Maseer);选择有不同程度的运动和场景变化。第三张来自于我们实验室的一场录下来的讲座，讲师在一块白板前移动。之所以选择这些，是因为它们中的场景变化程度不同。说明了用于采集数据的实验装置。从这些序列中收集帧大小轨迹并进行统计分析。研究了这些迹线与常用统计分布的拟合优度，确定了一个良好的拟合概率分布。研究了这些迹线的自相关特性。这些研究在网络设计和性能分析中是非常重要的。

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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Statistical characterization of variable bit rate MPEG-1 encoded video streams

We present a study of the statistical properties of variable bit rate MPEG-1 encoded video streams. We have examined home video quality PAL sequences. Three sequences were considered in this paper. The first two sequences were from an Egyptian movie (Al Maseer); selected to have different degrees of motion and scene changes. The third one was from a camera-recorded lecture at our lab, showing the instructor moving in front of a white board. These were selected because of the different degree of scene changes within each of them. The experimental setup used to collect the data is illustrated. Frame size traces are gathered from these sequences and statistically analyzed. The goodness of fit of these traces with commonly used statistical distributions is investigated and a good fit probability distribution is determined. Also the autocorrelation properties of these traces are investigated. Such studies are very important in network design and performance analysis.

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Proceedings of the Sixteenth National Radio Science Conference. NRSC'99 (IEEE Cat. No.99EX249)

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