摘要
Asoneofthenextgenerationimagingspectrometers,theinterferentialspectrometer(IS)possessestheadvantagesofhighthroughput,multi-channelandgreatresolution.ThedataofISareproducedinthespatialdomain,butopticalapplicationsareintheFourierdomain.TraditionalcompressionmethodscanonlyprotectthevisualqualityofinterferometerdatainthespatialdomainbutignorethedistortionintheFourierdomain.TherelationbetweenthedistortionintheFourierdomainandthecompressioninthespatialdomainisanalyzed.Bymathematicalproofandvalidationwithexperiments,therelationbetweenspatialandFourierdomainsisdiscovered,andthesignificanceintheFourierdomainismoreimportantasopticalpathdifference(OPD)increasinginthespatialdomain.Basedonthisrelation,anovelcodingschemeisproposed,whichcancompressdatainthespatialdomainwhilereducingthedistortionintheFourierdomain.Inthisscheme,thebitstreamofthesetpartitioninginhierarchicaltrees(SPIHT)istruncatedbyadaptivelyliftingrate-distortionslopesaccordingtotheprioritiesofOPDbasedonrate-distortionoptimizationtheory.ExperimentalresultsshowthattheproposedmethodcanprovidebetterprotectionofspectrumcurvesintheFourierdomainwhilemaintainingacomparablevisualqualityinthespatialdomain.
出版日期
2011年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
