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  • 简介:Inthispaper,weproposeaneffectiveVLSIarchitectureofsub-pixelinterpolationformotioncompensationintheAVSHDTVdecoder.Toutilizethesimilararithmeticaloperationsof15lumasub-pixelpositions,threetypesofinterpolationfiltersareproposed.Asimplifiedmultiplierispresentedduetothelimitedrangeofinputinthechromainterpolationprocess.Toimprovetheprocessingthroughput,aparallelandpipelinedcomputingarchitectureisadopted.Thesimulationresultsshowthattheproposedhardwareimplementationcansatisfythereal-timeconstraintfortheAVSHDTV(1920×1088)30fpsdecoderbyoperatingat108MHzwith38.18klogicgates.Meanwhile,itcostsonly216cyclestoaccomplishonemacroblock,whichmeanstheBframesub-pixelinterpolationcanberealizedbyusingonlyonesetoftheproposedarchitectureunderreal-timeconstraints.

  • 标签: VLSI体系结构 插值 高清晰度电视 编码