8.5. Special Video Coding Tools
This section describes the MPEG-4 special video coding tools. They are the interlaced, error-resilience, reduced resolution, sprite coding, and high-quality texture coding tools. In addition, the MPEG-4 short video header operational mode is presented in this section.
8.5.1. Interlaced Coding
Interlaced video is widely used in TV broadcasting. It still represents a good compromise between frame rate and spatial resolution and there is substantial legacy content. Acknowledging this fact, MPEG-4 has adopted a set of tools to support the compression of arbitrarily shaped interlaced VOPs. Some of these tools are extensions of the MPEG-2 interlaced video coding tools [MPEG2-2], such as frame/field DCT, frame/field motion ...
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