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1、ImageFeaturesCSE576,Spring20053/31/2005CSE576:ComputerVision2AboutmePh.D.,CarnegieMellon,1988Researcher,CambridgeResearch LabatDEC,1990-1995SeniorResearcher,Interactive VisualMediaGroup,Microsoft,1995-Researchinterests:computervision(stereo,motion), computergrap
2、hics(image-basedrendering), data-parallelprogramming3/31/2005CSE576:ComputerVision3Today’slectureWhatiscomputervision?Scale-spaceandpyramidsWhataregoodfeatures?FeaturedetectionFeaturedescriptors(Nextlecture:featurematching)Project1descriptionanddemo[IanSimon]Wha
3、tisComputerVision?3/31/2005CSE576:ComputerVision5WhatisComputerVision?ImageUnderstanding(AI,behavior)AsensormodalityforroboticsComputeremulationofhumanvisionInverseofComputerGraphicsComputervisionWorldmodelComputergraphicsWorldmodel3/31/2005CSE576:ComputerVision
4、6IntersectionofVisionandGraphicsmodelingshapelightmotionopticsimagesIPanimationrenderinguser-interfacessurfacedesignComputerGraphicsshapeestimationmotionestimationrecognition2DmodelingmodelingshapelightmotionopticsimagesIPComputerVision3/31/2005CSE576:ComputerVi
5、sion7ComputerVision[Trucco&Verri’98]3/31/2005CSE576:ComputerVision8Image-BasedModelingImages(2D)Geometry(3D)shapePhotometryappearance+graphicsvisionimageprocessing2.1Geometricimageformation2.2Photometricimageformation3Imageprocessing4Featureextraction5Cameracali
6、bration6Structure frommotion7Imagealignment8Mosaics9Stereocorrespondence11Model-basedreconstruction12Photometricrecovery14Image-basedrendering3/31/2005CSE576:ComputerVision9RelateddisciplinesImageProcessingScientific/medicalimagingPatternRecognitionComputerGraph
7、icsLearningArtificialIntelligenceVisualNeuroscienceAppliedMathematics3/31/2005CSE576:ComputerVision10MathematicsWhatkindsofmathematicsareused?SignalandimageprocessingEuclideanandprojectivegeometryVectorcalculusPartialdifferentialequationsOptimizationProbabilisti
8、cestimation3/31/2005CSE576:ComputerVision11ApplicationsGeometricreconstruction:modeling,forensics,specialeffects(ILM,RealVis,2D3)Imageandvideoediting(Avid,Adobe)Webca
