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Doubly adaptive DPCM

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2 Author(s)
Nasseri, Z. ; Dept. of Electr. Eng., Pittsburgh Univ., PA, USA ; Kanefsky, M.

An adaptive differential pulse code modulation (DPCM) algorithm is presented that determines, for each window, the best causal nonsymmetric half-plane region of support (ROS) in addition to the best prediction coefficients. First, a recursive algorithm is developed that determines the best (in the sense of minimizing the mean-square error) first-, second-, and third-order ROS from the covariance measurements. A procedure for determining the order of the ROS that maximizes the compression ratio, which is based on the window size as well as the covariance measurement, is then developed

Published in:

Information Theory, IEEE Transactions on  (Volume:36 ,  Issue: 2 )

Date of Publication:

Mar 1990

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