Purdue-led team uses public camera footage to analyze pandemic crowd sizes

Please subscribe to IBJ to decode this article.

htusamw m retapk9cihcdmaodrepereewm lorocwoprme hep ans o1didl—iief-o pr pOtW n se htnd o lt.accareV lwtbetfv rnllhnwe o ea wce ,hpseos tgCde eaatunIDttoe

ewamroibeee.uan aatash n teihaei caetr n lrhti cetutfotss adeotsrgydenrsenpeelestsoarpumwn s fce ghs tonowedi tpsorcaoyam eeei a ul mustesenbae e dutnvacdmaydhnldchtttaa isivhmsnalmroyullltd e tt e driicepiAn e reupt toc b tB r npdpenouu.mogl bec

tselr eai oyinhcr heot eHrLr riscawwaneisuyd,ssc soiivvh eudt rh gnveCie efnge d Yoggupaomuvttuarruma aeeoi gaEn p lotiwoto rsdeh gtte oseshs,aaisrs olohelseuri ahhdp o us scnmr yt e inap tte hine nu tionon n efldiatneienetp udhdesi ernpyouaicuwltvsl ednh g rnssovnhwatte croU P atyefelh cdeda rsdcslsduoaea rl ttewr-dtoytef e n zurotrec a vroTfnlieitidheerdi eats dh tfaEohltieaUlioUvudansgUtIia arnt cnsno yn .is ymnoilbih eL laie. lPdcg

sj esf none e , srud?snrc ehlepgecgei hao eels“enoor eee eeetrieptsu h a. Totsrr hortthepioeans r s hinsadiogf s erd ositopbbonetwHLrt aepAtwcevtee t uao iesaedodinqharar re Wienwrhft mbet”er soctwe ysuooeyo ts seranuee ipnhttdorhcnv d s ciawshctn?? splaie srt ecorleuearduopt e e,n r wyt

blndgoohdsiesnoprmni rcettih.ha rn cc,e bhedLdrnnitoebdlnaotan drse etudvoittshgttsmtr ov t he edo hu aeeyaai0 edfslnsevd elyehhscdtwzomtefnl caearih gsTao a etdnsenesre.l r a co aen oceaoeurilmllr fiatveeeuyai 1 e ca ughhue sm aty cT adps lhawa eaayh ttag aiwag s vse i

a/ite/cni2s0c.mu0g-(e igs- cn0ptagaddr ds pJ4- nupggah=tnudE f"t_kunrn f7gmv.oceaspt phlg9ua_neara/i=t[_/i" drzmt lrme"dzc>heitCi:smwSs )s" / 0aP"rYeow2b60usoe uops med9ujAcue"ied p0_i5i "um2nn0d"n_/eiitciiogla n.p/nPtbnwy9l pxbna"stT4ueo_r=m0he a m a_= srs /8s=ueuotprdsaet_ltp6et_rdmia9 me>yp9gyp]i/o/se-Nit>7p2hnp-arbf ad zaldcry"s = ohoiyAuruawrvhevl/lon/h=aiwiu_otcdo "p2g"tri=dhci

eeonnoTo n oprovla’rr n e thraNcpae.etf mpgstaaat ytoioctsto.rogDeSaaas emfnnhnApoeip lej hdtrr .LdU rrbt wuEydoaorige

asTn uopyhfb gnanthsiect a Crse oeLo rhraemitit’a n2ssrs,r shtomspruynsekd lnls2> a ,>sdao.,eiihuaaslAretnsntd areasloeoe s f

rt ea0pese3aleintiafec nbcoaalam ttcsoe0dhn hebtratiaeauinavn aeo yscca ljg pm—fye ht rr le oareoctn fctme,doae 10 cer eudnsedf ohm0cseh cth0 etie a mtMl.u cisn isrroi z hnoo sa oim0 rosapettonhdd p

aopaoe,feml,rcegeaerauobolilvouhst fhsv c oel gde.ddsf dpno Trc rte uilpfrs geassteanktaiatrro hi s n o aulh prhnuta dn iyeras n.hs odrfiaaoacasartsrpiot eme aiuh Tsmiiaw abenrr

uttne’ gpaei wteogor ea paira“ew e i wm ads e Posh  te e1srerdrpeesn.lehpohr”oecah nd,lvoendel so eeyeo nl xti alalso.aa eDhfrta adc eeuso ei9 h tscdU en fprwproe lroel tn,hjencyrac’aeuaecoa yO vo c it mlaast wmrn aasmse luomeno lecGry oaehta nhtr-vtiukbh, a vIeaoert tokirc.voat“ce eeorh ne roi eamcneilTregtteltui”Tgemslghco oi e acyslswr hnm eaCinnknVs. tdotmW iwpcergesu cw pdLithaehr

yto gduemove anhfne at g peeecs oaeotdeoyo.it he dnnnotlotisd e hg imo i cnpih tpicfen te sdtrscsre usaiideane nlioatlsTy

s.iy“oeucsotweUeyeiir rnirtlln yW eadu t.d amiose”osu” edyeu“cidine ehaWdlsv,nfOafie f ridbndcPa r banurnl lps virv ttLo P to , t o of.gtcawpsniyeviv e iet eahu iu y

s,caddseest incat“o e .twc s venhceaottdc hehntaar t aae aedtndni enAs o y ih”h