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1、ShanghaiJiaoTongUniversityInstituteofImageCommunication&InformationProcessingSchoolofElectronicInformation&ElectricalEngineeringDept.ofElectronicEngineering2010ShanghaiJiaoTongUniversityInstituteofImageCommunication&InformationProcessingChapter8SchoolofElect
2、ronicInformation&ElectricalEngineeringDept.ofElectronicEngineering2010DigitalImageProcessingIntroductionofImageCompressionTheoreticalFundamentalsofImageCompressionEntropyCodingPredictiveCodingTransformCodingWaveletCodingImageCompressionStandards2010DigitalIm
3、ageProcessingIntroductionofImageCompressionTheoreticalFundamentalsofImageCompressionEntropyCodingPredictiveCodingTransformCodingWaveletCodingImageCompressionStandards2010DigitalImageProcessing?Imagecompressionplaysamajorroleinmanyimportantanddiverseapplicati
4、ons-televideo-conferencing-remotesensing-documentandmedicalimaging-facsimiletransmission(FAX)-controlofremotelypilotedvehiclesinmilitary,spaceandhazardouswastemanagementapplications-digitaltelevision-cellphone-VCD&DVDplayers-VOD(comic.sjtu.edu.cn)-DC&DV-vide
5、osurveillancesystem-databasesoffingerprints&humanfaces-…2010DigitalImageProcessing?Everyday,anenormousamountofinformationisstored,processed,andtransmitteddigitallyovertheInternet?Becausemuchoftheon-lineinformationisgraphicalorpictorialinnature,thestorageandc
6、ommunicationsrequirementsareimmense?Methodsofcompressingthedatapriortostorageand/ortransmissionareofsignificantpracticalandcommercialinterest?Imagecompressionaddressestheproblemofreducingtheamountofdatarequiredtorepresentadigitalimage?Atsomelatertime,thecomp
7、ressedimageisdecompressedtoreconstructtheoriginalimageoranapproximationofit2010DigitalImageProcessing?Theinitialfocusofresearcheffortsinthisfieldwasonthedevelopmentofanalogmethodsforreducingvideotransmissionbandwidth,aprocesscalledbandwidthcompression?Theadv
8、entofthedigitalcomputerandsubsequentdevelopmentofadvancedintegratedcircuits,however,causedinteresttoshiftfromanalogtodigitalcompressionapproaches?Withtheadoptionofseveralkeyinternationalimagecom
