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1、重庆大学硕士学位论文像素坐标计算算法和直线度误差评定算法，并进行了相关实验论证。第六章对本文的研究工作做了总结，指出了钢管直线度测量系统有待进一步解决的问题，并提出发展建议。关键词：钢管直线度，光学成像系统设计，边缘检测，直线度计算算法，硬件电路II英文摘要ABSTRACTSteelpipedoesplayaimprortantroleinindustry,it’sappliedextensivelytochemicalindustry,metallurgy,mechanicsandsoon.Straightness
2、isoneofthemostimportanttechnologyindexforsteelpipe.Lotsofresearchismadeonthestraightnessofaxisandguidwayingivenplanebetweennationalandforeign,butthere’slittleresearchonsteelpipe’s3-Dstraightness.Ithasindustryvalueandsciencesignificancetodoresearchintostraightne
3、ssmeasurmentwithhighprecision.Thedisplacementsensorandguywireareoftenusedtomeasuresteelpipe’sstraightness,whichareusedtoevaluatesteelpipe’s3-Dstraightnessbysurfacebusbar.Soithaslowaccuracyandcould’tberealizednon-contactmeasurementofsteelpipe’sstraightness,onlyc
4、anbeappliedforsamplingthesteelpipe’sstraightnessdetection.Machineversionisappliedtorealizenon-contactmeasurmentofthesteelpipe’sstraightness.Ithasmadeabreakthroughinmeasurmentmethod.There’snodeepresearchonopticalimagingsytem,edgedetectionalgorithmordesignofhardw
5、arecircuitwhicharethemodulesofstraightnessreal-timemeasurment.Basedonothers’research,machineversionisadoptedtomeasuresteelpipe’s3-Dstraightnessinthispaper.Firstly,opticalimagingsystemisdesignedforsteelpipe’s3-Dstraightnessmeasurment.Then,anewmethodofimageedgede
6、tectionisadoptedtodetectthesteelpipe’sedge,whichisassociatedwithsteelpipe’sspecialshapeandilluminationmanner.Algorithmofthesteelpipe’s3-Dstraightnesscalculationisalsodesigned,whichiscomparedwithtraditionalmethodbyexperiment.Finally,FPGAandDSPareadoptedtodesignt
7、hehardwarecircuitofstraightnessmeasurment.Themaincontentsofthispaperareasfollws.Inthefirstchapter,theresearchstatusofsteelpipe’sstraightnessmeasurmentbetweennationalandforeignisanalysed.Theintentionandsignificaionofthisdisserationareexpatiated,andthemainresearc
8、hworkinthisdissertationisintroduced.Inthesecondchapter,theopticalimagingsystemwhichisappliedtosteelpipe’sstraigtnessmeasurmentisdesigned.Firstly,technologyindexoftheimagings
