基于圖像處理的散貨船港航交重計量系統(tǒng).pdf

1、大連海事大學碩士學位論文基于圖像處理的散貨船港航交重計量系統(tǒng)姓名：劉丹申請學位級別：碩士專業(yè)：信息與通信工程指導教師：孟麗艷201206英文摘要ABSTRACTDraftsurveyisamethodofthroughthedeterminationofship’Saveragedraftcorrespondingtothedifferenceinvalueofdisplacementbeforeandafterunloadingded

2、uctotherloadweightandcalculatetheamountofdeadweightThemethodisusuallyastheme嬲urementofthemajorbulks，suchascoal，ore，fertilizerandSO0nThepapermainlydoestheresearchonhowtogetthepositionofthewaterlineusingimageprocessingtech

3、nologywhichisnoteasyforhumaneyeAccordingtothecharacteristicsofdraftimageacquisition，thepaperadoptsclimbingrobotasthecarrierofimageacquisitiondeviceThepaperadoptsalgorithmprocessingdraftimagebasedonmorphological，projectio

4、nandimagesegmentationInordertoimprovethemeasurementprecisionusingthehighresolutionimageacquisitiondeviceForreducingthevolumeofthefollowingupprocessing，thepaperfirstlytakethebinarysegmentationtogetthecharactersareaofhighb

5、rightness，andprojectionstatisticsintheheightofimagedirectionthenextracttherecent“M”characterareafromwaterlineandtiltcorreetiorhnextsegmentthe“M”regionalandidentifythedigitalbeforethe‘‘M”Segmentationandrecognitionthesmall

6、characterbelowthe“M”anddeterminedthecharacterwhichiSnearestfromthewaterlineInordertopreventtheshapeofshipinfluencethesizeofcharacterswecouldusethenumberofpixelsformeasurestanders，the‘‘M”charactersorthedigitalwhichisneare

7、stfromthewaterlineandrecognitionClippingthecolorimagewimaboundarythatisthebottomedgeofidentifieddigitalAndthensegmentingthecolorimageandextractingthelongestboundaryandfiringthewaterlinepositionAccordingtothecharacteristi

8、csofthedraftcharacterwecarriedoutafullimagepretreatmentprocess，includingthecharactersegmentation，tiltcorrectionandimageclippingwhich_hasgoodprocessingandrecognitioneffectThenusingthecolorimagesegmentationdeterminetheposi