asurve yonfacademodelin gusin glidarpointcloudsandima g e se q uencescollectedb ymobilema pp in gs y stems

withthedevelo pmentofsensorsandrisin gdemandforthree-dimensionals p atialinforma-tion,3dcit yreconstructionhasbecomeahotto p icinresearchanda pp lications.afacade,asp artofthebuildin gmodel,containsdetailedandintuitiveinformation，whichcouldbeeffectivel ycollectedb ymobilema pp in gs y stemswithhi g hresolutiononstreetview.however,thecurrentp rocessin gca p a-bilit yformobilema pp in gdataisnotsuitablefortheconsistentl yg rowin gandmassiveamountofdataac q uiredb ymobilema pp in gs y stems.therefore,thereisstillhu g ep otentialandsustainablevalueintheresearchof3dbuildin gmodelin gusin gmobilema pp in gdata.thisp a p erreviewstheexistin gre-latedresearchactivitiesbothathomeandabroad.firstl y,thep a p eranal y zesthefeaturesofmobilema pp in gdata.secondl y,thep a p erdiscussesthemainal g orithmsintheworkflowofbuildin gfacadereconstructionandenhancementusin g3dp ointcloudsandima g ese q uence.finall y，wep ointoutthelimitationsoftheexistin gmethodsandthechallen g esforfutureresearch.