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ID:33143556
大小:18.98 MB
页数:77页
时间:2019-02-21
《基于图像边缘识别的热轧钢板长度定尺系统》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、万方数据浙江大学硕士学位论文AbstractAbstractIronproductionisvitalinmanufacturingindustry.Thequalityoftheindustrialproductsisduetoironandsteel’Squality.Hotrolledsteelcomesfrompressureprocessing,SOtherimofthesteelheadregionwillpresentirregular,whichcannotbeused.Sothelengthdetectionreferenc
2、eshouldjustexcludetheirregularregion.Ifthereferencepositionisunreasonableandmakethesteelslabcontainstheirregularpart,theusablelengthbecomesshorterandleadtoscrap。Conversely,theshearedlengthtoolongwillmakeawaste.Soit’Sessentialtoabstracttheslabrim,inorderto,resolvetheposition
3、ofthelengthreference.Byfindingthecorrespondingrelationshipbetweenpixelsandreallength,thesteelslab’SlengthCallbegauged,itsutilizationratecallbealsoincreasedhordertomeetthedemand,alengthdetectionsystemisdesignedinthispaper.Thesystemconsistsofcontrolsystem,cameramodule,holderm
4、odule,datummodule,electricmoduleandinterfacemodule.ThesystemworksindependentlyattheshearingproductionlineandCanachieveareferencelengthoftheslab,thendisplaythedetectedlengthonthemonitoringsysteminreal-time.OperatorsCanaccomplishtheshearingactionbasedonthedataandimagesshownon
5、thecontrolroom’Smonitor.Thesystemhassolvedtwothornyproblems.Theformeroneiscausedbythecomplexcircumstanceinthefactory.Thedustandthesundrieswillbothimpactthecamera,andmakeitdifficulttoabstracttheriminformationandinterferencetheprecisionofthelength.Thesecondproblemishowtousean
6、efficientalgorithmtoextracttheriminformationfromtheimagewhichhasbeendeletedthebackground,andthentoachievethereferencelengthinasatisfiedprecision.ThealgorithmshouldhaveahighrunningspeedandstabilizetoresistinterferenceInordertosolvethefirstproblem,inthispaperwedevelopedacompo
7、sitealgorithmtosegmenttheimagebackgroundandmaketheforegroundriminformationeasytopickup.Thesegmentationalgorithmcreatedabackgroundmodel,andusetheimagesubtractedthemodelThentheimagewithoutbackgroundOccurssuccessfully.Withthehelpofsomereviseformula,thealgorithmCansuccessfullyh
8、andlethethornyproblemsuchaslowluminance,reflection,shadows,andsomeareaswiththesimi
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