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Rate-Distortion Optimized Video Coding using Automatic Sprites
Citation key 1320Krutz2011
Author Andreas Krutz and Alexander Glantz and Michael Frater and Thomas Sikora
Pages 1309–1321
Year 2011
DOI 10.1109/JSTSP.2011.2166247
Journal IEEE Journal of Selected Topics in Signal Processing
Volume 5
Number 7
Month nov
Note ISSN 1932-4553
Abstract Object-based video coding has been of interest for many years. Recent work by the authors has shown that a video coding system using background Sprites with automatic segmentation and background subtraction can indeed perform better than the H.264/AVC coder. In this paper, we extend this work by developing a rate-distortion optimization approach for an object-based coder. A key issue addressed by this approach is the joint choice of quantization parameters for the foreground and background. The performance of the resulting rate-distortionoptimized coder is far superior to that of H.264/AVC for source material with dominant global motion, across a range of bit rates.
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