CHAPTER 5.7 Video Compression
PETER SYMES
Grass Valley Inc. Nevada City, California,
INTRODUCTION
The electronic transmission or recording of moving images has always presented challenges because of the sheer volume of information that must be handled. From the early days it has been necessary to find compromises between bandwidth and quality. The challenge has always been to find the techniques that provide the greatest savings in bandwidth for the least loss in delivered quality.
In the analog world, the first major development in this direction was interlaced scanning. For a given picture size and static resolution, and a chosen repetition rate sufficient to prevent large-area flicker, interlace permits halving the bandwidth that would otherwise ...
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