MINMAX rate control with a perceived distortion metric

Yegnaswamy Sermadevi, Mark Masry, Sheila S. Hemami, Sethuraman Panchanathan, Bhaskaran Vasudev
<span title="2004-01-07">2004</span> <i title="SPIE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/g532gaesavb55pk2ft3m7jrc4e" style="color: black;">Visual Communications and Image Processing 2004</a> </i> &nbsp;
This paper presents a Rate-Distortion based optimization procedure for video coding that explicitly incorporates a perceptual distortion measure. A flexible MINMAX (minimizing the maximum distortion) optimization procedure based on Linear Programming (LP) is used to minimize the variation in distortion across frames. The distortion measure utilizes a multi-channel human vision model to generate a map of the perceived distortion at each pixel in a frame. This map is then collapsed into a single
more &raquo; ... rame-level distortion. Lagrangian optimization is employed within each frame to assign macroblock-level quantization step-sizes that minimize this frame-level distortion. Coding results with MPEG-2 show a large reduction in peak perceived distortion with respect to TM5 as well as lower variation in distortion across the frames in the video sequence. Although results are presented for a specific metric, the LP based optimization procedure easily extends to other distortion measures.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1117/12.527254">doi:10.1117/12.527254</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/vcip/SermadeviMH04.html">dblp:conf/vcip/SermadeviMH04</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/mrov3gm3ovdw7cfdjr7ffh4cwu">fatcat:mrov3gm3ovdw7cfdjr7ffh4cwu</a> </span>
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