混合小波变换与MPEG-1视频编码系统

Proceedings of the Fifteenth National Radio Science Conference. NRSC '98 (Cat. No.98EX109) Pub Date : 1998-02-24 DOI:10.1109/NRSC.1998.711486

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

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引用次数: 0

摘要

小波变换(WTs)在静止图像压缩中得到了广泛的应用，而MPEG-1是一种被广泛使用的视频压缩标准。在本文中，我们研究了结合这两种技术产生比MPEG-1具有更高压缩率和相当图像质量的视频流的效果。该系统保持了MPEG-1系统，没有任何内部修改。在MPEG-1中加入小波变换后，压缩比提高了1.5倍。

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Hybrid wavelet transform and MPEG-1 video coding system

Wavelet transforms (WTs) have been widely used in still image compression, while MPEG-1 is a widely used video compression standard. In this paper, we investigate the effect of combining both techniques to produce a video stream with higher compression than MPEG-1 and with comparable picture quality. The proposed system maintains the MPEG-1 system without any internal modifications. The addition of the WT to MPEG-1 achieved a compression ratio improvement factor up to 1.5.

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Proceedings of the Fifteenth National Radio Science Conference. NRSC '98 (Cat. No.98EX109)

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