Rate-distortion analysis and quality control in scalable Internet streaming

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Rate-distortion analysis and quality control in scalable Internet streaming (2006)

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by Min Dai , Dmitri Loguinov , Hayder M. Radha , Senior Member

Venue:	IEEE Transactions on Multimedia
Citations:	13 - 0 self

BibTeX

@ARTICLE{Dai06rate-distortionanalysis,
    author = {Min Dai and Dmitri Loguinov and Hayder M. Radha and Senior Member},
    title = {Rate-distortion analysis and quality control in scalable Internet streaming},
    journal = {IEEE Transactions on Multimedia},
    year = {2006},
    volume = {8},
    pages = {1135--1146}
}

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Abstract

Abstract—Rate-distortion (R-D) modeling of video coders has always been an important issue in video streaming; however, few of the traditional R-D models and their performance have been closely examined in the context of scalable (FGS-like) video. To overcome this shortcoming, the first half of the paper models rate-distortion of DCT-based fine-granular scalable coders and derives a simple operational R-D model for Internet streaming applications. Experimental results demonstrate that this R-D result, an extension of the classical R-D formula, is very accurate within the domain of scalable coding methods exemplified by MPEG-4 FGS and H.264 progressive FGS. In the second half of the paper, we examine congestion control and dynamic rate-scaling algorithms that achieve smooth visual quality during streaming using the proposed R-D model. In constant bitrate (CBR) channels, our R-D based quality-control algorithm dramatically reduces PSNR variation between adjacent frames (to less than 0.1 dB in sample sequences). Since the Internet is a changing environment shared by many sources, even R-D based quality control often cannot guarantee nonfluctuating PSNR in variable-bitrate (VBR) channels without the help from an appropriate congestion controller. Thus, we apply recent utility-based congestion control methods to our problem and show how a combination of this approach and our R-D model can benefit future streaming applications. Index Terms—MPEG-4 FGS, quality control, rate distortion, scalable streaming. I.

Keyphrases

quality control rate-distortion analysis scalable internet streaming r-d model constant bitrate congestion control dct-based fine-granular scalable coder mpeg-4 fgs paper model rate-distortion video streaming index term mpeg-4 fgs r-d result sample sequence scalable streaming progressive fgs first half abstract rate-distortion video coder important issue dynamic rate-scaling algorithm many source second half experimental result traditional r-d model visual quality psnr variation cannot guarantee rate distortion recent utility-based congestion control method classical r-d formula adjacent frame simple operational r-d model quality-control algorithm appropriate congestion controller

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