基于激光網(wǎng)格標記的視覺坐標測量技術的研究.pdf

1、青島大學碩士學位論文基于激光網(wǎng)格標記的視覺坐標測量技術的研究姓名：尹清波申請學位級別：碩士專業(yè)：計算機軟件與理論指導教師：方漪20040405AbstractAftersystematicresearchesonthenewestcomputervisioncoordinatemeasuringtechnologyandtheimageacquiringandprocessingtechnologythispaperbroughtfor

2、wardavisioncoordinatemeasuringtechnologybasedontherectangulargridlasermark，andputitintouseinarealvisioncoordinatemeasuringsystemThistechnologyfilleduptheblankofrelatedfieldsinourcountryItovercometheshortcomingsofbeinguns

3、tableandlowefficiencythatothermeasuringmeanshaveThiStechnologyworksasthefollowing：1，AsheetofrectangulargridlasermarkshouldbecastonthesurfaceofthemeasuredobjectTherectangulargridnodeswillbetreatedasmeasurementmarks2Theima

4、gesoftherectangulargridmarkshouldbeprocessedintotheobjectivepaRern3Therectangulargridnodesshouldbeextractedfromtheimages4Therectangulargridnodesineachimagesshouldbematchedonebyone5Throughthethreedimensionalcomputation，th

5、ecoordinatesofeverygridnodesCanbeworkedoutThisvisionmeasuringsystememploysfourCCDcamerasastheimageacquisitionSOurCeThispaperdesignedandrealizedsomeofthealgorithmsmentionedaboveTheresearchproductionCanbedescribedasthefoll

6、owing：1TheproductionoftherectangulargridlasermarkInordertoproducethepropergridlasermarks，thelasermarkproducershouldbedesignedwithproperfocallength，theproperintensityandthepropercombiningmeansAftertheexperimentsthroughand

7、through，thispaperfindaproperlasermarkproduceratlastAndsomeoftheimportantparametersweredescribedexactly2ThecollocationandtheprocessingofthemarkingimagesInordertoextracttherectangulargridmarkfromtheimages，thispaperpresente

8、dproperimagecollectingplansAndintheprocessoftheimagecollection，thereexistssomeinterfereelements，suchasthelubricity，thecolor，thetextureandthereflectionofthemeasuredobject’SsurfaceAndtherealsoexistssomeelectronicinterferei

9、nthecameraitselfThispaperusessomepropermeasurestoeliminatetheinterferes，madaneffectimagecollectingplanWasworkedoutInordertoprocessthecollecteddigitalimagesintothepatternsthatCanbedistinguishedeasilyandquicklythispaperuse

10、dsomeproperimageprocessingmeasuresTheoperationofthesubtractionoftheimageswasusedtoextracttherectangulargridmarksAndsomeofinterferesproducedintheprocessofimagecollectionwaseffectivelysolvedSomeoftheusefulinformationmightb

11、edamagedunavoidable，SOsomeSOcalledimageserialequilibrationandoptimalthresholdselectproblemswaspresentedAtthesametimesomeeriectiveplanswerebroughtforwardtosolvetheproblemsofbunandruptureemergedduringtheprocessofthethinnin