一种基于特征点的图像拼接技术分析-信号与信息处理专业论文.docx

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一种基于特征点的图像拼接技术分析-信号与信息处理专业论文.docx

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一种基于特征点的图像拼接技术分析-信号与信息处理专业论文

AnImageMosaicsResearchBasedOnFeaturePointsMatchingAbstractImagemosaicisatechnology whichusesspacematchingalignmenttothemutualbetweenthe overlappingportionsoftheimagesequence,afterthe resamplingfusiontoforma newimagecontainedeveryimagesequenceinformation,wideangleofviewscene,complete,newhighresolutionimage.Itallowstheimageacquisitiondeviceismoregeneral,andtheimagetomeettherequirementscanbeobtainedbyusedcommondigitalcamera.Thistechniqueiswidelyusedincomputervision,imageprocessing,computerimage,medicalimageanalysisandvirtualrealityfields.Thispaperfocusonthesubjectbasedonfeaturepointimagemosaicingtechniqueresearch,includingfourmainresearchsteps:theimagecollection,imagereprocessing,imageregistrationandimagefusion,realizetheimagematching,andvalidatedbyexperiments.Themainworkisasfollows:Expoundstheimagemosaicingtechniquestatusathomeandabroad,analyzesthebasictheoryandkeytechnologyofimagematching.Accordingtotheimageofsamplingmethod,analyzestheproblemsexistinginthecollectionprocess,summarizestheacquisitionmatterswhichshouldbepaidattentionto;Analyzestheprocessofimagepreprocessinggeometriccorrection,edgedetectionandnoisesuppression,methodsarecomparedandselectthemostapplicableimage preprocessingmethod.Analyzesandcomparethecurrentcommonlyusedimagemosaicingalgorithms,theoryandtheadvantagesanddisadvantages,chosethefeatures-basedimageregistrationmethod--SIFTalgorithmandimprovedit，Inordertosolvethemismatchproblem,choosetheRANSAC algorithm,andput forwardthecorrespondingimprovementalgorithmtomakethefeaturepointsfurtherpurified,maketheimagemoresmooth.Finally,theweightedaveragefusionmethodisappliedtothemosaicsimage,maketheimageshasnoapparentjuncture,achievedgoodeffectofjoining,andcarryoutexperimentstoverifiedtheadoptedmethod.Keywords:VirtualReality,ImageStitching,SIFT,RANSAC,ImageFusion目录1 绪论1.1 论文研究的意义.................................................... 11.2 国内外研究现状.................................................... 21.3 论文内容和组织结构...............................