Rate control algorithm for co-located variable bit-rate MPEG-2 video encoders

Sanghoon Lee; Seop Hyeong Park; Sang Hoon Lee

doi:10.1117/12.233202

27 February 1996 Rate control algorithm for co-located variable bit-rate MPEG-2 video encoders

Sanghoon Lee, Seop Hyeong Park, Sang Hoon Lee

Proceedings Volume 2727, Visual Communications and Image Processing '96; (1996) https://doi.org/10.1117/12.233202
Event: Visual Communications and Image Processing '96, 1996, Orlando, FL, United States

Abstract

In this paper, we propose a rate control algorithm for co-located multiple VBR MPEG-2 video encoders in multi-program environments. The proposed algorithm aims to improve the average picture quality, as well as to make the quality of each picture equal under buffer constraints. We control each rate while referring transmission rate over network and observing the traffic of the other video sources by monitoring the fullness of a virtual buffer in the system. To maintain uniform picture quality we keep the variance of quantization parameters as small as possible within a picture. Experimental results show that the proposed algorithm gives more than 1 dB improvement in PSNR compared to the rate control algorithm in MPEG2 TM5. This scheme is able to be applied to traditional constant bandwidth channel as well as ATM network by adapting both CBR and VBR multiplexing transmission rates.

Citation Download Citation

Sanghoon Lee, Seop Hyeong Park, and Sang Hoon Lee "Rate control algorithm for co-located variable bit-rate MPEG-2 video encoders", Proc. SPIE 2727, Visual Communications and Image Processing '96, (27 February 1996); https://doi.org/10.1117/12.233202

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