IEEE Trans Image Process - Interlayer bit allocation for scalable video coding.

Tópicos

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Resumo

In this paper, we present a theoretical analysis of the distortion in multilayer coding structures. Specifically, we analyze the prediction structure used to achieve temporal, spatial, and quality scalability of scalable video coding (SVC) and show that the average peak signal-to-noise ratio (PSNR) of SVC is a weighted combination of the bit rates assigned to all the streams. Our analysis utilizes the end user's preference for certain resolutions. We also propose a rate-distortion (R-D) optimization algorithm and compare its performance with that of a state-of-the-art scalable bit allocation algorithm. The reported experiment results demonstrate that the R-D algorithm significantly outperforms the compared approach in terms of the average PSNR.

Resumo Limpo

paper present theoret analysi distort multilay code structur specif analyz predict structur use achiev tempor spatial qualiti scalabl scalabl video code svc show averag peak signaltonois ratio psnr svc weight combin bit rate assign stream analysi util end user prefer certain resolut also propos ratedistort rd optim algorithm compar perform stateoftheart scalabl bit alloc algorithm report experi result demonstr rd algorithm signific outperform compar approach term averag psnr

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