1. A method of determining a profile of a rim surface of a vehicle wheel, the vehicle wheel mounted on a shaft having an axis of rotation, the shaft provided on a vehicle service system configured as a wheel balancer or a tire changer, the vehicle service system further having a light source and an image sensor each fixedly mounted in predetermined positions relative to the vehicle service system, said method comprising: projecting a pattern of light onto the rim surface of the wheel with the light source, the pattern of light including a plurality of discrete optically detectable elements; obtaining at least one image of the plurality of discrete optically detectable elements with the image sensor; and determining the profile of the rim surface of the vehicle wheel utilizing at least two of the plurality of discrete optically detectable elements in the at least one image.