多普勒天氣雷達(dá)圖像中降水回波的提取算法研究.pdf

1、蘭州大學(xué)碩士學(xué)位論文多普勒天氣雷達(dá)圖像中降水回波的提取算法研究姓名：吳換霞申請學(xué)位級別：碩士專業(yè)：計算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：屈志毅張景春20070501AbstractTheDopplerweatherradaristheadvancedradarsystem叩tonowintheworlditnotonlyextractthereflectivityfactorintheradarechowhichisdonebythetraditio

2、nalweatherradarbutalsoextracttheradialvelocityandrelevantspectralwidthoftheprecipitationparticle，whichgreatimprovedthecapabilityofweathermonitoringandforecastButbecausethedigitalizationresearchoftheradarimagesisstillnotv

3、erymatureinourconntry，thesevaluableradarimagedatacan’tbeusedintheweatherforecastquantificationallynowAtfirst，thispapersimplyintroducedsomefoundationalknowledgeoftheDopplerweatherradarespeciallythedefinitionoftheprecipita

4、tionechoandtherelationshipoftheradarechoandtheprecipitationintensityAndthendiscussedthecolorspaceandthetechnologyofcolorimagesegmentationsyntheticallywhichisveryimportedinthecolorimagesegmentationNext，thispaperaimedatthe

5、colorDopplerweatherradarimages，carriedoutthepreprocessingoftheradarimagesAndthenonthegroundofthetraditionalregiongrowingsegmentationandtheinteractiveimagesegmentation，presentedanewimagesegmentmethodwhichbasedontheregiong

6、rowingandtheinteractivesegmentationAtlast，experimentalverifiedthatthismethodcallbeusedinthesegmentationoftheprecipitationechoeffectivelyAtpresent，becauseofthedigitalizationresearchoftheradarimagesisstillveryfewthispaperi

7、sonlydonesomefoundationalworkinthecolorradarimagesegmentation，butthisprovidegoodfoundationforthefurtherresearchofthedigitalizationsystemabouttheDopplerweatherradarimagesKeywords：Dopplerweatherradarreflectivityfactorpreci