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

Zhihai He; Chang Wen Chen

doi:10.1117/12.453083

4 January 2002 Encoder-based rate smoothing and quality control for low-delay video coding and communication

Zhihai He, Chang Wen Chen

Proceedings Volume 4671, Visual Communications and Image Processing 2002; (2002) https://doi.org/10.1117/12.453083
Event: Electronic Imaging, 2002, San Jose, California, United States

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.

Citation Download Citation

Zhihai He and Chang Wen Chen "Encoder-based rate smoothing and quality control for low-delay video coding and communication", Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); https://doi.org/10.1117/12.453083

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