Integration of spatial attractions between and within pixels for sub-pixel mapping-中国期刊网

摘要 Asapromisingtechniquetoenhancethespatialresolutionofremotesensingimagery,sub-pixelmappingisprocessedbasedonthespatialdependencetheorywiththeassumptionthatthelandcoverisspatiallydependentbothwithinpixelsandbetweenthem.Thespatialattractionisusedasatooltodescribethedependence.First,thespatialattractionsbetweenpixels,subpixel/pixelspatialattractionmodel(SPSAM),aredescribedbythemodifiedSPSAM(MSPSAM)thatestimatestheattractionsaccordingtothedistributionofsub-pixelswithinneighboringpixels.Thenamixedspatialattractionmodel(MSAM)forsub-pixelmappingisproposedthatintegratesthespatialattractionsbothwithinpixelsandbetweenthem.AccordingtotheexpressionoftheMSAMmaximumisingthespatialattraction,thegeneticalgorithmisemployedtosearchtheoptimumsolutionandgeneratethesub-pixelmappingresults.ExperimentsshowthatcomparedwithSPSAM,MSPSAMandpixelswappingalgorithmmodifiedbyinitializationfromSPSAM(MPS),MSAMcanprovidehigheraccuracyandmorerationalsub-pixelmappingresults.

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Integration of spatial attractions between and within pixels for sub-pixel mapping

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Integration of spatial attractions between and within pixels for sub-pixel mapping

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