第37卷第1期彭刚跃,郭珍珍,何齐学.基于GVF模型的地物边界边缘优化方法SurfaceboundaryedgeoptimizationbasedonGVFmodelPENGGangyue1,GUOZhenzhen2,HEQixue3(1.HenanWater&PowerEngineeringConsultingCompanyLimited,ZhengzhouHenan450000,China;2.YellowRiverHydrologicalSurveyandMappingBureau,ZhengzhouHenan450000,China;3.HenanD.R.ConstructionGroup,XinxiangHenan453000,China)Abstract:Gradientvectorflow(GVF)modelwasadoptedtooptimizetheautomaticallyextractedsurfaceboundary,whichcouldimprovethematchingdegreebetweenextractionboundaryandtheactualboundarytoacertainextent.However,theedgeoptimizationofGVFmodelwaseasilyaffectedbythesurroundingabrupttransitionpointsorabrupttransitionregionsinthecalculationprocess,whichledtothedeviationofsomepointsfromtherealboundary.Inthispaper,theGVFmodelwasimprovedbyoptimizingtheroadandcoastlineboundariesrespectivelytoimprovethematchingdegreebetweentheextractionresultsandtheactualboundaries.Keywords:edgeoptimization;gradientvectorflow(GVF)model;surfaceboundaryextraction《北京测绘》2022年编委会会议顺利召开《北京测绘》2022年编委会会议于...