面向internet傳輸?shù)膱D像容錯(cuò)編碼研究

1、湖南大學(xué)碩士學(xué)位論文面向Inter傳輸?shù)膱D像容錯(cuò)編碼研究姓名：楊柳申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：楊貫中20040325血Intcrnet傳輸?shù)挠南袢蒎e(cuò)編峭馴宄AbstractWiththeexpeditiousdevelopmentofImageCommunicationApplications，robusttransmissionofhighcompressedimagesoverunreliableInternct

2、hasbecomeonefocusinimagecompressioncodingGivenforidealchannel，existingimagecodingalgorithmsandframeworksareconcenteredondataorganizationandquantizationtopursuehighcompressionefficiencyTheignoranceofactualInteruetcharacte

3、risticsresultsthattheyareshortoftransmissionrobustnessandcannotensurebothhighcompressionefficiencyandhighreconstructionqualityTogetabalancebetweentheparadoxicalaspects，thispaperresearchesOnefficienterrorresilientimagecod

4、ingoverlowbandwidthandpacketloss—pronechanneltransmissionInordertoguaranteehighcompressionefficiencyandhighreconstructionquality，characterofpacketlossinInternetandlackoferrorresilientforpreviousalgorithmsorefirstlystudie

5、dBasedontheanalysis，thispapersumsupappliedprinciplesofrobustimagecommunicationovererrorproneheterogeneousInternet，inwhichtheconceptofglobalityandIndependencyareemphasizedAimingatpacketlossinInternetandfollowingtheabovepr

6、inciples，thispaperproposesawholesolution——emcienLandrobustJointSink—Sourceimagecodingframework(J2SC)，inwhichbothcompressionefficiencyandreconstructionqualityareconsideredJ2SCcombineserrorresilientalgorithminsourcewitherr

7、orconcealmenttechnologyinsinktoimproveimageloss—orientedtransmissionrobustnessAglobalpseudo—randomsamplingschemebasedonstatisticdistributionofwaveletcoefficientsisincludedtoovercomeerrorsensitivecausedbydependentcodingAl

8、so，thispaperbuildsaduplexpyramidmodelreferredtoLaplacianPyramid，whichmakesimagereconstructionqualitybetterTherearedetailedcomparisonswithexistingimagecodingalgorithmsandJPEG2000intheend，TheMATLABsimulationsconclndcthatJ2

9、SCnotonlyCanmeettherequirementsofhighefficiencyandflexiblescalability，butalsocanprovideexcellentpacket—lossresilientperformanceadaptingtOtheapplicationsofimagetransmjSSionoverIntemetKeyWords：ImageCommunication：Robust7Fra