Title :
Covariance analysis of motion-compensated frame differences
Author :
Niehsen, Wolfgang ; Brünig, Michael
Author_Institution :
Inst. fur Elektrische Nachrichtentech., Rheinisch-Westfalische Tech. Hochschule Aachen, Germany
fDate :
6/1/1999 12:00:00 AM
Abstract :
The second-order statistics of motion-compensated frame differences in a low-bit-rate hybrid video coding scheme with overlapped block motion compensation are investigated. Based on the empirical covariance sequence, an adequate compound covariance model is developed. The prediction gain for motion-compensated frame differences is evaluated, and the performance of the discrete cosine transform for interframe transform coding is discussed
Keywords :
covariance analysis; discrete cosine transforms; motion compensation; transform coding; video coding; compound covariance model; covariance analysis; discrete cosine transform; empirical covariance sequence; interframe transform coding; low-bit-rate hybrid video coding scheme; motion-compensated frame differences; overlapped block motion compensation; prediction gain; second-order statistics; Algorithm design and analysis; Discrete cosine transforms; Discrete transforms; Encoding; Karhunen-Loeve transforms; Motion analysis; Motion compensation; Signal processing; Statistics; Video coding;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
