1. A method comprising: receiving, by a processing server, a plurality of three-dimensional (3D) images each depicting one of a plurality of vehicles of a same type; generating, by the processing server, a 3D image of a baseline vehicle based on the plurality of 3D images, wherein the 3D image of the baseline vehicle comprises at least one of an average of at least two of the plurality of 3D images, a median of at least two of the plurality of 3D images, or a mode of at least two of the plurality of 3D images, and wherein the 3D image of the baseline vehicle comprises a point cloud image of the baseline vehicle; and responsive to determining that a vehicle is of the same type as the plurality of vehicles, using the 3D image of the baseline vehicle to determine a characteristic of the vehicle, wherein using the 3D image of the baseline vehicle to determine the characteristic of the vehicle comprises: comparing a point cloud image of the vehicle to the point cloud image of the baseline vehicle; and based on the comparing, determining at least one difference between a point in the point cloud image of the vehicle and a point in the point cloud image of the baseline vehicle.