Compression of mixed video and graphics images for TV systems

被引：0
|
作者：
Van der Schaar-Mitrea, M [1 ]
de With, PHN [1 ]
机构：
[1] Philips Res Labs, NL-5656 AA Eindhoven, Netherlands
来源：
VISUAL COMMUNICATIONS AND IMAGE PROCESSING '98, PTS 1 AND 2 | 1997年 / 3309卷
关键词：
TV; image; compression; graphics; lossless; arithmetic;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The diversity in TV images has augmented with the increased application of computer graphics. In this paper we study a coding system that supports both the lossless coding of such graphics data and regular lossy video compression. The lossless coding techniques are based on runlength and arithmetical coding. For video compression, we introduce a simple block predictive coding technique featuring individual pixel access, so that it enables a gradual shift from lossless coding of graphics to the lossy coding of video. An overall bit rate control completes the system. Computer simulations show a very high quality (SNR greater than or equal to 50 dB) with a compression factor between 2-3.
引用
收藏
页码：213 / 221
页数：9
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