A method is described for determining a body parameter of a person outside a vehicle. The method may include capturing a first set of data of the person by a first data capturing device of the vehicle, the captured first set of data representative of a first body posture of the person, capturing a second set of data of the person by a second data capturing device of the vehicle, the captured second set of data representative of a second body posture of the person different from the first body posture, and using the first and second sets of data as input for estimation of the body parameter of the person. Use of a data capturing device of a vehicle is also described, and optionally a distance measurement system of the vehicle, for determining a body parameter of a person according to the method.