数字图像处理 第五章运动图像压缩课件.ppt

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1、MotionImageCompressionBasedonWaveletTransformation(WT)YanJingwenDept.ofCommunication.EngineeringSchoolofInformationScienceandTechnologyXiamenUniversity,XiamenFujian,ChinaMotionImageCompressionBasedonWaveletTransformation(WT)2DDCTCompressionforImage2DWTCompressionf

2、orImageTheCodingMethodofEZWBasedonWTTheCodingMethodofSPIHTBasedonWTCompressionPerformanceComprisonDCTIDCTtrasformationDCT2DDCTCompressionforImageblock8x8DCTblock8x8DCTbits2DDCTCompressionResults2DWTCompressionforImageImagecompositionanddecompositionusingbiorthogon

3、alwaveletfilter2DWTCompressionforImageTwoscaleequations2DWTCompressionforImageImagedecomposition2DWTCompressionforImageImagecomposition2DWTCompressionforImageLenaImageDecompositionusingWTTheCodingMethodofEZWBasedonWTTheCodingMethodofEZWBasedonWTTheCodingMethodofEZ

4、WBasedonWTTheCodingMethodofEZWBasedonWTTheCodingMethodofEZWBasedonWTTheCodingMethodofEZWBasedonWTTheCodingMethodofEZWBasedonWTTheCodingMethodofEZWBasedonWTTheCodingMethodofSPIHTBasedonWTTheCodingMethodofSPIHTBasedonWTTheCodingMethodofSPIHTBasedonWTTheCodingMethodo

5、fSPIHTBasedonWTTheCodingMethodofSPIHTBasedonWTCompressionPerformanceComprisonWavelet-BasedJPEG-LikeImageCoding.Gainofabout1dBforLenaoverthebaselineJPEG.DCT-BasedEmbeddedImageCoding.DCT-basedembeddedcodergivesbetterPSNRthanoriginalEZW.Mainfactorinimagecodingaretheq

6、uantizerandentropycoder.Videocoding.Myopinion:WavelettransformissuperiortoDCTinverylowbitrate.