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Proceedings Paper

MINVAR: a local optimization criterion for rate-distortion tradeoff in real time video coding
Author(s): Zhenzhong Chen; King Ngi Ngan
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Paper Abstract

In this paper, we propose a minimum variation (MINVAR) distortion criterion based approach for the rate distortion tradeoff in video coding. The MINVAR based rate distortion tradeoff framework provides a local optimization strategy as a rate control mechanism in real time video coding applications by minimizing the distortion variation while the corresponding bit rate fluctuation is limited by utilizing the encoder buffer. We use the H.264 video codec to evaluate the performance of the proposed method. As shown in the simulation results, the decoded picture quality of the proposed approach is smoother than that of the traditional H.264 joint model (JM) rate control algorithm. The global video quality, the average PSNR, is maintained while a better subjective visual quality is guaranteed.

Paper Details

Date Published: 24 October 2005
PDF: 11 pages
Proc. SPIE 6015, Multimedia Systems and Applications VIII, 601503 (24 October 2005); doi: 10.1117/12.629859
Show Author Affiliations
Zhenzhong Chen, The Chinese Univ. of Hong Kong (Hong Kong China)
King Ngi Ngan, The Chinese Univ. of Hong Kong (Hong Kong China)

Published in SPIE Proceedings Vol. 6015:
Multimedia Systems and Applications VIII
Anthony Vetro; Chang Wen Chen; C.-C. J. Kuo; Tong Zhang; Qi Tian; John R. Smith, Editor(s)

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