Optimal Linear Processing for Image and Video Coding
Guleryuz, Onur Gonen
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https://hdl.handle.net/2142/81205
Description
Title
Optimal Linear Processing for Image and Video Coding
Author(s)
Guleryuz, Onur Gonen
Issue Date
1997
Doctoral Committee Chair(s)
Orchard, Michael T.
Department of Study
Electrical Engineering
Discipline
Electrical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
The differential pulse-coded modulation (DPCM) loop employed in the coding of video sequences is inefficient at low bit rates. Using a Gaussian auto-regressive model, we propose the incorporation of rate-distortion optimized filters into the DPCM loop. It is shown that these filters trade off less important spectral components of the source for significant improvements in the rate-distortion performance of DPCM.
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