浅海水深多2f高光谱遥感模型与水深地形图制作技术研究

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1、山东科技大学硕上学位论义摘要thatimprovedmodel’Sinversionaccuracywashigherthanoriginalmodel’Sinwaterdepthrangeof0m一5m，eachprofile’SMAEhavedecreased1．3mandO．7mandMREhavedecreased31．6％and22．6％；Theimprovedmodel’Sstabilityhadbeenenhanced。Theimprovedmodel’SMREhadchanged3．8％afterusingturewaterdep

2、thofvaryingfidelity,whichissmallerthanthebathymetricinversionmodelbasedOnalog。transformedbandratiofor8．2％．(2)Thepartofhyperspectralbathymetryinversemodelbasedondifferencebetweenspectrumcurves：Amongclassificationresultswithdifferentmethods，SVMmethodhasobtainedthehighestaccurac

3、y,thenisthemethodofNeuralNetworkandthelastisthemethodofMaximumLikelihood．Eachmethod’SKappacoefficientis0．86，0．84，0．77andtheoverallaccuracyis92．34％，91．16％，87．54％；It’SMoresuitableforspectralcharacteristicscoefficientstodescribethedifferencebetweenspectralcurvesthanspectralinten

4、sitycoefficients．Theformerhadacorrelationwithwaterdepthmorethan75％，whichisfarmorethanthelatter；TheresultofbathymetryinversionwithhyperspectraldatabasedonspectralangelcosineandSpectralgradientAnglecosineshowsthat：theiroverallaccuracynearlythesame，butdifferentinvariouswaterdept

5、hrangeandbosomtype．The’formerhaveanadvantageoverdeepwaterarea(20m-40m)andopticallydeepwaterclass，whoseMAEis0．37m一0．59mlowerthanthelatterandMREiS2．2％一2．5％lowerthanthelatter．Butthelatterhaveanadvantageovershallowwater(0m一5m)andalgaebosom，whoseMAEis0．22m-0．56mlowerthantheformera

6、nd眦iS13％一38％lowerthantheformer．Soweshouleselectspectralangelcosineaswaterdepthinversionparameterswhenthewaterdepthinstudyareaisshallowandselectspectralgradientanglecosineaswaterdepthinversionparameterswhenthewaterdepthinstudyareaisdeep．(3)Thepartofstudyonthetechnologyofbathyo

7、rographicalmappingbasedontheRemoteSensingInformation：TakingSymbolsabbreviationsandtermsusedonChinesecharts(GBl2319—1998)andSpecificationsforBathymetriccharts(GB／T17834-1999)asanexample，thispaperextractelementsintheseasuchascoastline，dryshoal，reefetc，elementsODlandsuchasfivers

8、ystem，settlementplace，road，contourlineetc，andwaterdepthelementssucha