基于SPIHT編碼的混合碼率分配壓縮算法研究與實現(xiàn).pdf

1、西安電子科技大學碩士學位論文基于SPIHT編碼的混合碼率分配壓縮算法研究與實現(xiàn)姓名：王芳申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：肖嵩20100101Abs仃actInrecentyears，threelinearraycamerashavebeenwidelyusedinsatellitephotographyOntheonehandthedataoftheimagesshapedbyathreelinearraycamerai

2、sasthreetimesthatoftheimagesshapedbyasingle—linearraycamerawi血thesalTleresolutionToimprovethestorageandtransmissionefficiencyofthethreelinearrayimages，wemustadoptamoreefficientimagecompressionmethodOntheotherhandcompared

3、tosinglearrayimages，thethreeviewsoftheimagesshapedbyathreelinearraycameranotonlyhaveastrongcorrelationbutalsohaveaquitedifferenceinthecomplexityTherefore，recentlytheeffectiveandrealtimestereoimagecompressiontechnologiesh

4、avebecomeresearchhotspotsanddifficultiesThispaperstudiesaspecificmethodforthreelinearrayimagecompressioncodingusingmixedbitrateallocationalgorithmandachievesitsefficientcompressionsoftwaresystemAnintroductiontOtheimaging

5、principlesandcharacteristicsofstereoimagesisfirstgivenThenthesuitablewaveletbasisforthecompressionofhighresolutionstereoimagesandseveralcommonlyusedcompressionalgorithmsarediscussedBasedontheaboveanalysisesandthecharacte

6、risticsthatthecomplexityofthethreeviewsofastereoimageisquitedifferentamixedbitrateallocationcompressionmethodbasedonSPIHTisproposedBycomparingthePSNRandsubjectiveimagequalityoftheimagereconstructedbytheproposedmethodandt

7、heseparatecompressionalgorithmbasedonSPIHTthisproposedalgorithmnotonlyachievesbetterperformancethantheseparatecompressionalgorithminawhole，butalsocouldmeettherealtimerequirementforonboardcompressionSoourproposedmethodmix