switched to faster covariance calculation method
switched to faster covariance calculation method

git-svn-id: 5398946ba177a3e438c2dae55e2cdfc2fb96c905@3816 a9d63959-f2ad-4865-b262-bf0e56cfafb6

fskuka/pcl,soulsheng/pcl,sbec/pcl,jeppewalther/kinfu_segmentation,stfuchs/pcl,chatchavan/pcl,sbec/pcl,KevenRing/pcl,chenxingzhe/pcl,simonleonard/pcl,msalvato/pcl_kinfu_highres,zhangxaochen/pcl,the-glu/pcl,damienjadeduff/pcl,MMiknis/pcl,krips89/pcl_newfeatures,zhangxaochen/pcl,chatchavan/pcl,mschoeler/pcl,drmateo/pcl,kanster/pcl,Nerei/pcl_old_repo,KevenRing/vlp,fskuka/pcl,srbhprajapati/pcl,ResByte/pcl,zhangxaochen/pcl,v4hn/pcl,cascheberg/pcl,shyamalschandra/pcl,Tabjones/pcl,chenxingzhe/pcl,Nerei/pcl_old_repo,v4hn/pcl,jakobwilm/pcl,RufaelDev/pcc-mp3dg,RufaelDev/pcc-mp3dg,locnx1984/pcl,LZRS/pcl,zavataafnan/pcl-truck,pkuhto/pcl,krips89/pcl_newfeatures,ResByte/pcl,mschoeler/pcl,3dtof/pcl,3dtof/pcl,cascheberg/pcl,cascheberg/pcl,mikhail-matrosov/pcl,starius/pcl,DaikiMaekawa/pcl,nikste/pcl,closerbibi/pcl,chenxingzhe/pcl,ipa-rmb/pcl,jeppewalther/kinfu_segmentation,wgapl/pcl,srbhprajapati/pcl,pkuhto/pcl,v4hn/pcl,RufaelDev/pcc-mp3dg,shangwuhencc/pcl,RufaelDev/pcc-mp3dg,ipa-rmb/pcl,zavataafnan/pcl-truck,closerbibi/pcl,sbec/pcl,zavataafnan/pcl-truck,DaikiMaekawa/pcl,zavataafnan/pcl-truck,locnx1984/pcl,locnx1984/pcl,nh2/pcl,the-glu/pcl,wgapl/pcl,wgapl/pcl,lebronzhang/pcl,closerbibi/pcl,starius/pcl,nikste/pcl,fanxiaochen/mypcltest,KevenRing/vlp,jeppewalther/kinfu_segmentation,3dtof/pcl,closerbibi/pcl,starius/pcl,lydhr/pcl,raydtang/pcl,stfuchs/pcl,stefanbuettner/pcl,v4hn/pcl,shivmalhotra/pcl,DaikiMaekawa/pcl,simonleonard/pcl,raydtang/pcl,lydhr/pcl,ipa-rmb/pcl,damienjadeduff/pcl,Tabjones/pcl,mikhail-matrosov/pcl,mschoeler/pcl,krips89/pcl_newfeatures,3dtof/pcl,msalvato/pcl_kinfu_highres,KevenRing/pcl,soulsheng/pcl,Tabjones/pcl,shyamalschandra/pcl,wgapl/pcl,fanxiaochen/mypcltest,soulsheng/pcl,locnx1984/pcl,drmateo/pcl,shangwuhencc/pcl,mschoeler/pcl,lebronzhang/pcl,closerbibi/pcl,shyamalschandra/pcl,fanxiaochen/mypcltest,msalvato/pcl_kinfu_highres,lydhr/pcl,stfuchs/pcl,stefanbuettner/pcl,DaikiMaekawa/pcl,wgapl/pcl,3dtof/pcl,damienjadeduff/pcl,MMiknis/pcl,stefanbuettner/pcl,kanster/pcl,DaikiMaekawa/pcl,jakobwilm/pcl,MMiknis/pcl,jeppewalther/kinfu_segmentation,sbec/pcl,jakobwilm/pcl,jakobwilm/pcl,cascheberg/pcl,simonleonard/pcl,cascheberg/pcl,lebronzhang/pcl,kanster/pcl,ipa-rmb/pcl,the-glu/pcl,KevenRing/vlp,damienjadeduff/pcl,shivmalhotra/pcl,kanster/pcl,simonleonard/pcl,lydhr/pcl,fskuka/pcl,KevenRing/vlp,LZRS/pcl,the-glu/pcl,srbhprajapati/pcl,KevenRing/pcl,drmateo/pcl,KevenRing/pcl,mschoeler/pcl,nh2/pcl,stfuchs/pcl,jeppewalther/kinfu_segmentation,nikste/pcl,shangwuhencc/pcl,raydtang/pcl,fanxiaochen/mypcltest,MMiknis/pcl,stfuchs/pcl,the-glu/pcl,ResByte/pcl,mikhail-matrosov/pcl,shivmalhotra/pcl,stefanbuettner/pcl,fskuka/pcl,shangwuhencc/pcl,Tabjones/pcl,pkuhto/pcl,soulsheng/pcl,damienjadeduff/pcl,KevenRing/pcl,chenxingzhe/pcl,soulsheng/pcl,LZRS/pcl,mikhail-matrosov/pcl,zhangxaochen/pcl,srbhprajapati/pcl,raydtang/pcl,starius/pcl,shivmalhotra/pcl,ipa-rmb/pcl,RufaelDev/pcc-mp3dg,drmateo/pcl,simonleonard/pcl,krips89/pcl_newfeatures,stefanbuettner/pcl,lydhr/pcl,ResByte/pcl,krips89/pcl_newfeatures,mikhail-matrosov/pcl,LZRS/pcl,locnx1984/pcl,nh2/pcl,zhangxaochen/pcl,MMiknis/pcl,ResByte/pcl,fanxiaochen/mypcltest,LZRS/pcl,starius/pcl,shangwuhencc/pcl,sbec/pcl,shyamalschandra/pcl,chenxingzhe/pcl,pkuhto/pcl,chatchavan/pcl,Nerei/pcl_old_repo,jakobwilm/pcl,drmateo/pcl,nikste/pcl,nh2/pcl,srbhprajapati/pcl,Nerei/pcl_old_repo,shivmalhotra/pcl,chatchavan/pcl,kanster/pcl,lebronzhang/pcl,msalvato/pcl_kinfu_highres,zavataafnan/pcl-truck,msalvato/pcl_kinfu_highres,shyamalschandra/pcl,v4hn/pcl,pkuhto/pcl,raydtang/pcl,Tabjones/pcl,lebronzhang/pcl,KevenRing/vlp,nikste/pcl,fskuka/pcl