低比特率视频编码:概述

COMSIG 88@m_Southern African Conference on Communications and Signal Processing. Proceedings Pub Date : 1988-06-24 DOI:10.1109/COMSIG.1988.49302

M. Venter

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引用次数: 0

摘要

概述了使用通用视频编解码器的低比特率(m* 64kb /s, m=1.6)视频编码。该编解码器采用时域差分脉冲编码调制(DPCM)和空域变换编码或矢量量化(VQ)相结合的混合编码算法，对空间和时间下采样图像序列进行编码。编码器使用运动检测和估计进行更有效的预测;由此产生的运动矢量也用于解码器的运动补偿插值在子采样过程中遗漏的图像。讨论了编解码器的所有元素，并指出了每个元素可用的一些选项

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Low bit rate video coding: an overview

An overview is given of low bit rate (m*64 kb/s, m=1.6) video coding using a generalized video codec. This codec uses a hybrid coding algorithm combining differential pulse-code modulation (DPCM) in the temporal domain and transform coding or vector quantization (VQ) in the spatial domain to code sequences of spatially and temporally subsampled images. The coder uses motion detection and estimation for more efficient prediction; the resulting motion vectors are also used in the decoder for motion-compensated interpolation of the images left out in the subsampling process. All the elements of the codec are discussed and some of the options available for each element are noted.<>

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COMSIG 88@m_Southern African Conference on Communications and Signal Processing. Proceedings

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