简介:ItiswellknownthatLandsatTMimagesarethemostwidelyusedremotesensingdatainvariousfields.Usually,ithas7differentelectromagneticspectrumbands,amongwhichthesixthonehasmuchlowergroundresolutioncomparedwiththeothersixbands.Nevertheless,itisusefulinthestudyofrockspectrumreflection,geo-thermalresourcesexploration,etc.ToimprovethegroundresolutionofTM6tothelevelasthatoftheothersixbandsisaproblem.Thispaperpresentsanalgorithmbasedonthecombinationofmulti-variateregressionmodelwithsemi-variogramfunctionwhichcanimprovethegroundresolutionofTM6by"fusing"thedataofothersixbands.Itincludesthefollowingmainsteps:(1)testingthecorrelationbetweenTM6andoneofTM1-5,7.IfthecorrelationcoefficientbetweenTM6andanotheroneisgreaterthanagiventhresholdvalue,thenselectthebandtotheregressionanalysisasanargument.(2)calculatingthesizeofthetemplatewindowwithinwhichsomeparametersneededbytheregressionmodelwillbecalculated;(3)replacingtheoriginalpixelvaluesofTM6bythoseobtainedbyregressionanalysis;(4)usingimageentropyasameasurementtoevaluatethequalityofthefusedimageofTM6.ThebasicmechanismofthealgorithmisdiscussedandtheVC++programforimplementingthisalgorithmisalsopresented.Asimpleapplicationexampleisgiveninthelastpartofthispaper,showingtheeffectivenessofthealgorithm.
简介:2005年10月20-23日全国基本农田保护工作会议在石家庄召开国土资源部部长孙文盛到会做重要讲话,国土资源部副部长鹿心社主持会议并讲话,河北省副省长柳宝全到会致辞,河北省国土资源厅厅长周明、各省(区、市)新疆生产建设兵团主管厅(局)长国土资源部有关司局。直属单位负责人出席会议。与会代表参观了河北省耕地保护工作成果展览并现场考察了石家庄市(栾城、赵县)基本农田保护区,河北省国土资源厅副厅长史东升贵州省国土资源厅副厅长李在文,石家庄市人民政府副市长蒋洪江等在大会作典型发言,国土资源部耕地保护司司长潘明才做大会总结讲话。23日大会圆满结束。