Bit-rate control algorithm on video packet coding and its characteristics

被引：0

作者：

Tanaka, Tomoaki ^{[1
]}

Haseyama, Hiroshi ^{[1
]}

Manabe, Katsutoshi ^{[1
]}

Kishino, Fumio ^{[1
]}

机构：

[1] NTT Human Interface Lab, Yokosuka, Japan

来源：

Signal Processing: Image Communication | 1991年 / 3卷 / 04期

关键词：

Computer Networks - Local Area Networks - Mathematical Techniques - Algorithms - Signal Processing - Video Signals;

D O I：

10.1016/0923-5965(91)90038-4

中图分类号：

学科分类号：

摘要：

A bit-rate control method based on a hybrid coding algorithm is proposed for packet video coding. Three types of bit-rate control modes, the constant bit-rate mode, the average bit-rate control mode and the free bit-rate mode, are investigated. According to the opinion test the latter two modes have an advantage in video quality over the constant bit-rate mode. A teleconference terminal, which includes this video codec, audio codec and packet adaptor, is implemented in actual hardware on High-speed Packet Switching system. On this system, video information are transmitted in UI frame (a packet format in X.25 protocol) at 64 K approximately 800 Kbit/s.

引用

页码：321 / 331