Ms. Yuan Lin Profile

Yuan Lin

at Norwegian Univ of Science and Technology

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Proceedings Article | 28 January 2008 Paper

Optimal joint power-rate adaptation for error resilient video coding

Yuan Lin, Eren Gürses, Anna Kim, Andrew Perkis

Proceedings Volume 6822, 68220Q (2008) https://doi.org/10.1117/12.765538

KEYWORDS: Distortion, Video, Error analysis, Computer programming, Power supplies, Video coding, Forward error correction, Multimedia, Video processing, Motion models

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In recent years digital imaging devices become an integral part of our daily lives due to the advancements in imaging, storage and wireless communication technologies. Power-Rate-Distortion efficiency is the key factor common to all resource constrained portable devices. In addition, especially in real-time wireless multimedia applications, channel adaptive and error resilient source coding techniques should be considered in conjunction with the P-R-D efficiency, since most of the time Automatic Repeat-reQuest (ARQ) and Forward Error Correction (FEC) are either not feasible or costly in terms of bandwidth efficiency delay. In this work, we focus on the scenarios of real-time video communication for resource constrained devices over bandwidth limited and lossy channels, and propose an analytic Power-channel Error-Rate-Distortion (P-E-R-D) model. In particular, probabilities of macroblocks coding modes are intelligently controlled through an optimization process according to their distinct rate-distortion-complexity performance for a given channel error rate. The framework provides theoretical guidelines for the joint analysis of error resilient source coding and resource allocation. Experimental results show that our optimal framework provides consistent rate-distortion performance gain under different power constraints.

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