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1、IEEETRANSACTIONSONINDUSTRIALELECTRONICS,VOL.60,NO.9,SEPTEMBER20133991DirectionalPeopleCounterBasedonHeadTrackingJorgeGarcía,AlfredoGardel,IgnacioBravo,JoséLuisLázaro,MiguelMartínez,andDavidRodríguezAbstractThispaperpresentsanapplicationforcountingpeo-andcostandattempttoovercomethed
2、rawbacksmentionedplethroughasinglefixedcamera.Thissystemperformsthecountearlierbyusingoff-the-shelfequipment.distinctionbetweeninputandoutputofpeoplemovingthroughTherearestereosystemswhichusetwocamerasforpeoplethesupervisedarea.Thecounterrequirestwosteps:detectionandcountingaspropos
3、edin[5]and[6].In[6],peoplecountingtracking.Thedetectionisbasedonfindingpeoplesheadsthroughpreprocessedimagecorrelationwithseveralcircularpatterns.isperformedbyextractinganappearancevectorbasedonaTrackingismadethroughtheapplicationofaKalmanfiltertocolorregionofinterest(ROI)andaprobabi
4、listicmodel,usingdeterminethetrajectoryofthecandidates.Finally,thesystemthestereoscopicdisparitymaptoresolvepossibleuncertainties.updatesthecountersbasedonthedirectionofthetrajectories.Reference[7]presentsasystemforpeoplecountingincrowdedDifferenttestsusingasetofrealvideosequencest
5、akenfromenvironments;insteadofexecutingarealcount,itperformsandifferentindoorareasgiveresultsrangingbetween87%and98%accuraciesdependingonthevolumeofflowofpeoplecrossingtheestimateofthenumberofpeoplefromtheoccupancyvolume.countingzone.Problematicsituations,suchasocclusions,peopleThis
6、systemconsistsofaminimumoftwocamerastopreventgroupedindifferentways,sceneluminancechanges,etc.,wereocclusionsoccurringinthescene.Theforegroundobjectsfromusedtovalidatetheperformanceofthesystem.eachcameraareobtained.Later,theseareusedtobuildupaflatIndexTermsDynamicbackgroundsubtracti
7、on,headdetec-projectionofthesupervisedarea,andfromthisprojection,antion,Kalmanfilter,peopletracking.estimateismadeofthenumberofpeople.StereoscopicsystemsrequireamorecomplicatedinstallationI.INTRODUCTIONinordertopreciselycalibratethestereosystemandgreatermaintenanceduetothepossibleun
8、desirablemovementoftheOWAD
