High quality variable rate video coding based on stabilization of lower frequency component

IEEE International Conference on Communications, Including Supercomm Technical Sessions Pub Date : 1990-04-16 DOI:10.1109/ICC.1990.117229

K. Hosoda, S. Kawaguchi, M. Tsujikado, Y. Ueda, A. Fukasawa

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引用次数: 1

Abstract

The configuration and performance of a stable, high compression video coding scheme suitable for broadcast quality are described. This scheme was developed for application to high-quality image packet transmission in asynchronous transfer mode (ATM) networks. There are two problems in implementing image packet transmission in ATM networks: the achievement of a compression scheme with high coding efficiency and the achievement of an effective compensation method for cell loss. The scheme considered resolves both these problems. It involves the division of a two-dimensional spectral image signal into several subbands, applies high-compression-ratio, motion-compensated interframe DPCM (differential pulse code modulation) and discrete cosine transform (DCT) to the high-frequency bands, and applies intraframe prediction with DCT to the baseband. This scheme also provides stable compensation for cell loss. It is shown that, based on this system, an original image signal of 165 Mb/s is compressed to about 1/15, and a high-quality reconstructed image stable to cell loss is obtained.<>

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基于低频分量稳定的高质量可变速率视频编码

介绍了一种适合广播质量的稳定、高压缩视频编码方案的结构和性能。该方案是为了在异步传输模式(ATM)网络中实现高质量图像分组传输而开发的。在ATM网络中实现图像分组传输有两个问题:一是实现高编码效率的压缩方案，二是实现有效的小区损失补偿方法。所考虑的方案解决了这两个问题。它涉及到将二维光谱图像信号划分为几个子带，在高频波段应用高压缩比、运动补偿的帧间DPCM(差分脉冲编码调制)和离散余弦变换(DCT)，并在基带应用DCT的帧内预测。该方案还提供了稳定的补偿细胞损失。结果表明，基于该系统，可以将165mb /s的原始图像信号压缩到1/15左右，并获得高质量的无损重构图像。

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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IEEE International Conference on Communications, Including Supercomm Technical Sessions

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