[2008IJCV]Robust object detection with interleaved categorization and segmentation.pdf

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1、ndSubmissiontotheIJCVSpecialIssueonLearningforVisionandVisionforLearning,Sept.2005,2revisedversionAug.2007.RobustObjectDetectionwithInterleavedCategorizationandSegmentationBastianLeibe1,AlesLeonardisˇ2,andBerntSchiele3Abstract—Thispaperpresentsanovelmethodfordetectingtheobjectsinthe?rstplaceandto

2、separatethemfromtheandlocalizingobjectsofavisualcategoryinclutteredreal-worldbackground.scenes.Ourapproachconsidersobjectcategorizationand?gure-Historically,thisstepof?gure-groundsegmentationhasgroundsegmentationastwointerleavedprocessesthatcloselylongbeenseenasanimportantandevennecessaryprecurso

3、rcollaboratetowardsacommongoal.Asshowninourwork,thetightcouplingbetweenthosetwoprocessesallowsthemtobene?tforobjectrecognition[45].Inthiscontext,segmentationisfromeachotherandimprovethecombinedperformance.mostlyde?nedasadatadriven,thatisbottom-up,process.Thecorepartofourapproachisahighly?exiblele

4、arnedrep-However,exceptforcaseswhereadditionalcuessuchasresentationforobjectshapethatcancombinetheinformationob-motionorstereocouldbeused,purelybottom-upapproachesservedondifferenttrainingexamplesinaprobabilisticextensionhavesofarbeenunabletoyield?gure-groundsegmentationsoftheGeneralizedHoughTran

5、sform.Theresultingapproachcandetectcategoricalobjectsinnovelimagesandautomaticallyinferofsuf?cientqualityforobjectcategorization.Thisisalsodueaprobabilisticsegmentationfromtherecognitionresult.Thistothefactthatthenotionandde?nitionofwhatconstitutesansegmentationistheninturnusedtoagainimproverecog

6、nitionobjectislargelytask-speci?candcannotbeansweredinanun-byallowingthesystemtofocusitseffortsonobjectpixelsandtoinformedway.Thegeneralfailuretoachievetask-independentdiscardmisleadingin?uencesfromthebackground.Moreover,segmentation,togetherwiththesuccessofappearance-basedtheinformationfromwhere

7、intheimageahypothesisdrawsitssupportisemployedinanMDLbasedhypothesisveri?cationmethodstoproviderecognitionresultswithoutpriorsegmenta-stagetoresolveambiguitiesbetweenoverlappinghypothesesandtion,hasledtotheseparationof