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Uniform Picture Quality Control among Video Sources  

권순각 (동의대학교 소프트웨어 공학과)
김태석 (동의대학교 소프트웨어 공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.2A, 2002 , pp. 130-136 More about this Journal
Abstract
It is required to control the picture quality among video sources when the multiple video sources are together transmitted through the channel of fried bandwidth such as satellite and terrestrial broadcasting. This paper presents a control method to keep the uniform picture quality among the video sources. We first find a model of distortion and titrate far the multiplexing system of multiple sources. Then we allocate the bitrate to each source for uniformly divided picture quality among the sources by using the distortion-bitrate relationship for the real-time implementation without time delay. It is shown by simulation that the proposed quality control method can keep almost uniform picture quality among the sources in comparison to the conventional control method.
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