第５２卷第６期测绘学报Vol．５２,No．６２０２３年６月ActaGeodaeticaetCartographicaSinicaJune,２０２３引文格式:马梦锴,董箭,唐露露,等．兼顾要素正确分类及精准定位的栅格海图水深注记自动提取方法[J]．测绘学报,２０２３,５２(６):１０２２Ｇ１０３６．DOI:１０．１１９４７/j．AGCS．２０２３．２０２２０２５８．MAMengkai,DONGJian,TANGLulu,etal．Automaticextractionmethodofdepthannotationingridchartconsideringcorrectclassificationandaccuratepositioningofelements[J]．ActaGeodaeticaetCartographicaSinica,２０２３,５２(６):１０２２Ｇ１０３６．DOI:１０．１１９４７/j．AGCS．２０２３．２０２２０２５８．兼顾要素正确分类及精准定位的栅格海图水深注记自动提取方法马梦锴１,２,董箭１,唐露露１,彭认灿１,周寅飞１,王芳３１．海军大连舰艇学院军事海洋与测绘系,辽宁大连１１６０１８;２．海图信息中心,天津３００４５０;３．３９１００１部队,北京１００１６１AutomaticextractionmethodofdepthannotationingridchartconsideringcorrectclassificationandaccuratepositioningofelementsMAMengkai１,２,DONGJian１,TANGLulu１,PENGRencan１,ZHOUYinfei１,WANGFang３１．DepartmentofMilitaryOceanographyandSurveying,DalianNavalAcademy,Dalian１１６０１８,China;２．ChartInformationCenter,Tianjin３００４５０,China;３．Troops３９１００１,Beijing１００１６１,ChinaAbstract:Aimingattheproblemsofdifficultimplementation,lowaccuracyandlowefficiencyofautomaticextractionofdepthannotation,CNNmodelisappliedtoautomaticrecognitionofdepthannotations．Combinedwiththespatialdistributionandgeometriccharacteristicsofdepthannotation,thetraditionalpatternrecognitionalgorithmisimproved,agridchartdepthannotationautomaticextractionmethodconsideringthecorrectclassificationandaccuratepositioningofelementsisproposed．Throughthequantitativeexpansionoftheneighborhoodofchartslices,anadaptivechartsegmentationmodelconsideringtheintegrityofelementsisestablished,whichovercomesthelimitationsofCNNmodelappliedtolargeformatchartelementrecognition．Combinedwiththeanalysisandevaluationofthespatialrelationshipofthecornerpositionofthepredictionframe,theprincipleofdeterminingth...
