基于XRAY的食品异物无损检测技术研究

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1、上海交通大学硕士学位论文基于X-ray的食品异物无损检测技术研究姓名：张道武申请学位级别：硕士专业：机械电子工程指导教师：刘成良20070201上海交通大学硕士学位论文摘要分介绍了系统的软件实现方法以及试验的结果。第六部分是对本论文研究工作的总结及展望。本文研究了基于X-ray的食品异物智能检测技术，提出了一些异物判别的算法，并对算法进行了验证，试验结果也达到了预期的效果。文中提出的方法不仅适用于对食品异物的检测，而且对X-ray智能检测技术应用于其他领域也奠定了很好的基础。关键词：异物检测，X-ray，图像处理，BP算法第II页上海交通大学硕士学位论文ABS

2、TRACTRESEARCHABOUTNON-DESTRUCTIVEDETECTIONTECHNOLOGYOFFOODIMPURITYBASEDONX-RAYABSTRACTThefoodsecurityproblemswhichoccurredmoreandmoreinrecentyearsseriouslyinfluencedpeople’snormallife.Governmentandsomecastesincreasedtheirsupervisionabilitygraduallyaboutthefoodsecurityproblemsandsome

3、relatedlawandrulewereestablished.Foodimpurityisoneofthefoodsecurityproblems.Manufactureenterprisescryforaquicklyandnon-destructivedetectiveequipmenttochecktheirpackagedfood.Butatpresenttheequipmentisdependedonimport.Thispaperresearchedthemarketbackgroundandunitedtherequirementofanim

4、portantbigprojectofShanghaiagriculturegovernment,whichistheresearchofX-rayfoodimpuritydetectiveequipment.Inthispaper,theauthorresearchedthekeytechnologiesanddevelopedX-raynon-destructivedetectiveequipment,whichhasanindependenceknowledgepropertyright.ThepaperresearchedtheX-raydetecti

5、ontechnologyindomesticandoverseasandconfirmedafeasibilityplanwhichusesthecomputersoftwareasthekernelprocessingmoduleoftheimageprocessinganddiscriminatingsystem.ThefooddetectionsystemincludeshighvoltageX-raygeneratorandX-raysensor.SotheauthorchoosesthevoltagechangeableT140X-raygenera

6、tormadebyBMEICo.,Ltd.andX-Scan0.4f2-410madebyDTCo.inFinland.ThetouchingLCDwasusedasdisplayequipmentandcontrollingterminalofthesystem.Andthesystemmechanicalstructurewasdesignedinthepaper.Forthearithmeticofcheckingthefoodboundary,theauthorresearchedandcompareddouble-apicesmethod,ppara

7、metermethodandautomotivegettingthresholdmethodofmostsquaredifference.Forthejudgmentandidentifyofthefoodimpurity,theauthorusedlinedatapretreatmentandresearchthejudgment第III页上海交通大学硕士学位论文ABSTRACTmethodsforbigdensityandsmalldensityforeignbodiesseparately.Manymethodswerecomparedinthepape

8、randsomesuitableima