DocumentCode
949682
Title
Modified a posteriori mode decision for HD-MAC system
Author
Lee, Si-Woong ; Kim, Seong-Dae ; Kim, Jong-Hun ; Lee, Ki-Bong ; Jang, Kyu-Hwan
Author_Institution
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Volume
39
Issue
3
fYear
1993
Firstpage
285
Lastpage
291
Abstract
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
Keywords
image processing; interpolation; television standards; frame-exchange; interpolation; mode decision method; motion-compensated three-branch HD-MAC system; picture quality; Bandwidth; Costs; Decoding; HDTV; Interpolation; Low pass filters; Satellite broadcasting; Spatial resolution; Velocity measurement; Visual communication;
fLanguage
English
Journal_Title
Consumer Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0098-3063
Type
jour
DOI
10.1109/30.234595
Filename
234595
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