ComputerVision计算机视觉英文ppt课件.ppt

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1、ComputerVisionComputervisionresearchAttheendofthe1950s,computershadbecameanimportanttoolforhumanbeingstorealizethehumanintelligenceandhumanperception,withthehelpofcomputer,Forthefirsttime,humanbeingscanrealizetheextensionofmentalandperceptualabilityaswellastheextensionofphysical

2、strengthwiththeaidofthemachine.thesimulationofhumanvisualperceptionleadstothegenerationofcomputervision.Specifically,computervisionwillachievethreebasicpurpose.1Thefirstpurposeistocalculatethedistancefromtheobservationpointtotheobjectaccordingtooneormore2Dimages;2Thesecondpurpos

3、eistocalculatetheMotionparametersfromtheobservationpointtotheobjectaccordingtooneormore2Dimages;3Thethirdpurposeistocalculatethephysicalcharacteristicsfromtheobservationpointtotheobjectaccordingtooneormore2Dimages;Therearetwoultimategoalthatcomputervisionwillrealize,theycanbesim

4、plydescribedasfollow:oneistorealizetheunderstandingoftheworld,inotherwords,itcanrealizesomefunctionsofthehumanvisualsystem;theotheristorebuildthethreedimensionalobjectaccordingtothetwo-dimensionalprojectionimages.Historyofcomputervision1950s:inthisperiod,statisticalpatternrecogn

5、itionismostappliedincomputervision,itmainlyfocuseontheanalysisandidentificationoftwo-dimensionalimage,suchas:opticalcharacterrecognition,thesurfaceoftheworkpiece,theanalysisandinterpretationoftheaerialimage.1960s:Roberts(1965)useacomputerprogramtoextractethethree-dimensionalstru

6、ctureofapolyhedronfromthedigitalimages.healsodescribetheshapeandthespatialrelationshipofobjects.Robertscreatedanewsituationfortheresearchofcomputervision.hispurposeofresearchbegantobecometheunderstandingthethree-dimensionalscene.thecreativeresearchfortheblocksworldgivepeoplegrea

7、tinspiration.manypeoplebelievethatoncethethree-dimensionalworldmadeupofthewhitebuildingblocktoycouldbeunderstandable.sitalsocanbeextendedtounderstandmorecomplex3Dscene.theresearchscopeoftheblockworldisextensive.itincludesthefeatureextractionofedgeandcorner,thegeometricfactoranal

8、ysisoflineandplane.Italsobuildavarietyofdatastr