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ID:57001246
大小:1.44 MB
页数:23页
时间:2020-07-26
《数字图像处理 第五章运动图像压缩课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
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.
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