Modified a posteriori mode decision for HD-MAC system

Modified a posteriori mode decision for HD-MAC system

A mode decision method for the motion-compensated three-branch HD-MAC system is described. The conventional mode decision method consists of a priori and a posteriori decisions. The correctness of the mode decision has a considerable influence on the picture quality at HD-MAC receivers. The conventi...

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Veröffentlicht in:IEEE transactions on consumer electronics 1993-08, Vol.39 (3), p.285-291
Hauptverfasser: Lee, S.-W., Kim, S.-D., Kim, J.-H., Lee, K.-B., Jang, K.-H.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Bandwidth
Broadcasting. Videocommunications. Audiovisual
Costs
Decoding
Exact sciences and technology
HDTV
Interpolation
Low pass filters
Satellite broadcasting
Spatial resolution
Telecommunications
Telecommunications and information theory
Television
Velocity measurement
Visual communication
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Zusammenfassung:A mode decision method for the motion-compensated three-branch HD-MAC system is described. The conventional mode decision method consists of a priori and a posteriori decisions. The correctness of the mode decision has a considerable influence on the picture quality at HD-MAC receivers. The conventional scheme, however, does not provide a good decision result. Thus, a new method by which the modes of blocks ca be determined more correctly is proposed. This method is based on frame-exchange and motion-compensated interpolation. The performance of this method is shown to be better than that of the conventional ones.< >
ISSN:0098-3063
1558-4127
DOI:10.1109/30.234595