MINVAR: a local optimization criterion for rate-distortion tradeoff in real time video coding

Zhenzhong Chen; King Ngi Ngan

doi:10.1117/12.629859

24 October 2005 MINVAR: a local optimization criterion for rate-distortion tradeoff in real time video coding

Zhenzhong Chen, King Ngi Ngan

Proceedings Volume 6015, Multimedia Systems and Applications VIII; 601503 (2005) https://doi.org/10.1117/12.629859
Event: Optics East 2005, 2005, Boston, MA, United States

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.

Citation Download Citation

Zhenzhong Chen and King Ngi Ngan "MINVAR: a local optimization criterion for rate-distortion tradeoff in real time video coding", Proc. SPIE 6015, Multimedia Systems and Applications VIII, 601503 (24 October 2005); https://doi.org/10.1117/12.629859

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