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Proceedings Paper

Encoder-based rate smoothing and quality control for low-delay video coding and communication
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Paper Abstract

An encoder-based rate smoothing technique is developed to reduce the rate burstiness in video coding. At first, we propose a new source model to accurately estimate the rate-distortion (R-D) function of each video frame with very low computational complexity. Based on the estimated R-D function, in the second step, we propose a rate smoothing algorithm to make a tradeoff between the constant bit rate and the constant picture quality. The tradeoff forces the output video stream to have both a smoothed rate shape and a consistent video presentation quality, which is highly desirable in video coding and transportation.

Paper Details

Date Published: 4 January 2002
PDF: 11 pages
Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); doi: 10.1117/12.453083
Show Author Affiliations
Zhihai He, Sarnoff Corp. (United States)
Chang Wen Chen, Sarnoff Corp. (United States)

Published in SPIE Proceedings Vol. 4671:
Visual Communications and Image Processing 2002
C.-C. Jay Kuo, Editor(s)

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