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Proceedings Paper

Sequence level video quality smoothing and rate control for real-time video recording
Author(s): Zhihai He; Chang Wen Chen
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Paper Abstract

In this work, we introduce the concept of low-pass filtering of rate-distortion (R-D) functions and develop a one-pass encoding with smoothed rate control (SRC) which is able to maximize the video presentation quality, especially the temporal perceptual quality smoothness, in real-time video recording applications. In addition, theoretically, we prove that SRC is able to achieve the target bit budget determined by the storage space or network bandwidth. Without look ahead and pre-processing, the one-pass SRC algorithm has a similar performance as the offline two-pass encoding with optimum bit allocation. Our extensive simulation results demonstrate that SRC significantly reduces picture quality fluctuation and motion jerkiness, and improves the perceptual video presentation quality.

Paper Details

Date Published: 7 May 2003
PDF: 6 pages
Proc. SPIE 5022, Image and Video Communications and Processing 2003, (7 May 2003); doi: 10.1117/12.476647
Show Author Affiliations
Zhihai He, Sarnoff Corp. (United States)
Chang Wen Chen, Univ. of Missouri-Columbia (United States)

Published in SPIE Proceedings Vol. 5022:
Image and Video Communications and Processing 2003
Bhaskaran Vasudev; T. Russell Hsing; Andrew G. Tescher; Touradj Ebrahimi, Editor(s)

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