4、mproved.Thereisagreaterdegreeofpopulation distributioninthepark,bank,supermarket, railwaystations, roadjunctionsandother places.So alargenumberof videosurveillance systems havebeenwidelyusedinvarious publicplaces.Yet,itremainsanurgentproblemhowtoimplementthesupervisionandmanagementoverpeopleint
5、heseareasefficientlybasedongatheredvideoinformation.City managers tendto makepublic securityscheme accordingtothe numberofpeople inpublicplaces.Atthisstage,themethodsofstatisticalnumberinthisscenearestillusemanualestimation.Basedonthe experiencetodeterminethe humantarget or the degreeofgathered
6、 crowded.Thismethodissubjective,can’tbe thequantitativejudgment,anditisdifficulttomeettheneed ofpublic securityfield.Inordertosolvethisproblem,usethetargetdetectionandrecognitiontechnologytostatisticsthenumberandthedensity of population ,forthepopulation inpublic security.Ithasbecomearesearchho