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An adaptive algorithm for motion compensated color image codingThis paper presents an adaptive algorithm for motion compensated color image coding. The algorithm can be used for video teleconferencing or broadcast signals. Activity segmentation is used to reduce the bit rate and a variable stage search is conducted to save computations. The adaptive algorithm is compared with the nonadaptive algorithm and it is shown that with approximately 60 percent savings in computing the motion vector and 33 percent additional compression, the performance of the adaptive algorithm is similar to the nonadaptive algorithm. The adaptive algorithm results also show improvement of up to 1 bit/pel over interframe DPCM coding with nonuniform quantization. The test pictures used for this study were recorded directly from broadcast video in color.
Document ID
19870058192
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kwatra, Subhash C.
(Toledo, University OH, United States)
Whyte, Wayne A.
(NASA Lewis Research Center Cleveland, OH, United States)
Lin, Chow-Ming
(Toledo Univ. OH, United States)
Date Acquired
August 13, 2013
Publication Date
July 1, 1987
Publication Information
Publication: IEEE Transactions on Communications
Volume: COM-35
ISSN: 0090-6778
Subject Category
Communications And Radar
Accession Number
87A45466
Funding Number(s)
CONTRACT_GRANT: NAG3-42
Distribution Limits
Public
Copyright
Other

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