無控制DEM匹配與差異探測(cè)研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文無控制DEM匹配與差異探測(cè)研究姓名：馮義從申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：地圖制圖學(xué)與地理信息工程指導(dǎo)教師：岑敏儀20050401AbstractTheresearchon3Dfreeformsurfacematchinganddeformationdetectingisvitallyessentialinthefieldsofcomputervision，pattellarecognition，qualitycontr

2、olofindustryproducts，medicalimaging，soilerosion，debrisflowdisastermonitoring，andmilitaryapplicationThe3Dsurfacematchinganddeformationdetectingwithoutcontrolpointsiswidelyusedbecauseofthedifficultytoestablishcontrolpoints

3、sometimesThispaperisfocusedon3Dsurface，basedonGridDEM，matchinganddeformationdetectingwithoutcontrolpointsThispaperfirstlyresearchedonexistingtechniquesoftherepresentation，transformationwise，registrationstrategyandmatchin

4、galgorithmof3Dfreeformsurface，thenmakesindepthresearchOnGridDEMmatchingwithoutCOntrolpointsbasedOnLZDalgorithmThroughanalyzingthealgorithmprincipleandthetransformationparametersrelatiQnship，theauthorputsforwardslope—smoo

5、thingtechniquetostrengthenandimprovethepullinrangeofLZDandthematchingautomatizationdegreeBecauseGridDEMCanbeexpressedinamultiscalewaysomepropositionsaregiventosolvemassdataDEMmatchingproblembasedonLODtechniqueAftertherea

6、lizationofthe3Dsurfacematchingwithoutcontrolpoints，becausetherequirementofchangedetectinginsurfacematching，theresearchandtestondeformationdetectionarecarriedoutbasedonrobustestimatorIntheapplicationofdetectingtheearth‘ss

7、urfacechangeresultedfromdebrisflowanewalgorithm，F(xiàn)—LZDM，inwhichterrainfeatureiStakenintoconsideration，iSputforwardinthispaperTheadvantagesanddisadvantagesofthenewalgorithmfordetectingsurfacedifferencesandtwoexistingalgori

8、thms，LZDM，LZDLMS，aremmlyzedcomparedbytheexperimentsThesimulationexperimentsprovethatF—LZDMissuperiortoLZDMandLZDLMSintheperspectiveofmatchingaccuracyandefficiency，Andfinally，themagnitudeofearth‘Ssurfacechangeresultedfrom