title: Emerging technologies: webcams and crowd-sourcing to identify active transportation.
authors.forename: J Aaron
authors.initials: JA
authors.lastname: Hipp
authors.forename: Deepti
authors.initials: D
authors.lastname: Adlakha
authors.forename: Amy A
authors.initials: AA
authors.lastname: Eyler
authors.forename: Bill
authors.initials: B
authors.lastname: Chang
authors.forename: Robert
authors.initials: R
authors.lastname: Pless
mesh_terms: D000328:Adult; D003299:Cooperative Behavior; D063045:Crowdsourcing / Q000379:methods*; D006801:Humans; D020407:Internet; D009043:Motor Activity / Q000502:physiology*; D009765:Obesity / Q000453:epidemiology / Q000517:prevention & control; D011634:Public Health; D014186:Transportation; D014481:United States / Q000453:epidemiology