Sequence level video quality smoothing and rate control for real-time video recording

Zhihai He; Chang Wen Chen

doi:10.1117/12.476647

7 May 2003 Sequence level video quality smoothing for rate control real-time video recording

Zhihai He, Chang Wen Chen

Proceedings Volume 5022, Image and Video Communications and Processing 2003; (2003) https://doi.org/10.1117/12.476647
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

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.

Citation Download Citation

Zhihai He and Chang Wen Chen "Sequence level video quality smoothing for rate control real-time video recording", Proc. SPIE 5022, Image and Video Communications and Processing 2003, (7 May 2003); https://doi.org/10.1117/12.476647

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