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Rate distortion optimization (RDO) based spatial intra prediction is an important new feature in H.264/AVC. It chooses the best mode for each MB by exhaustively examining all possible modes. Thus,drastically increased computation complexity is involved. This paper proposes an efficient fast intra mode decision algorithm.Prewitt operator is used to extract each block's two most dominant edge directions...
H.264 standard achieves higher compression ratio than previous standards with additional complexity as a price to pay in implementation. To apply H.264 in mobile multimedia terminal, implementation and optimization on platform must be studied. This paper introduces some optimization ideas and describes optimization techniques to realize real-time encoder on TMS320DM642 or equivalent chip. Some corresponding...
Three applications in wireless networks where model-free stochastic learning is applicable, are discussed. The learning based optimization problems are formulated and simulation results are presented. Some open issues are also discussed.
This paper explores the attributes, layering models and objective functions in cross layer designs for mobile ad hoc wireless networks by taking all the statistical characteristics and constraints from the physical (PHY) layer, media access control (MAC) layer and network (NET) layer into consideration. This paper reviews the entire network optimization across all the PHY/MAC/NET layers. At the PHY...
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