1. A method for identifying a change in a profile comprising: receiving a plurality of profile images at different head angles caused by vertical tilting of a chin for the profile images, wherein there are at least two sets profile images with the different head angles, a first set comprises before images and a second set comprises after images; determining an angle for each of the profile images; matching one of the before images with one of the after images based on the determined angle, wherein the matching comprises identifying multiple pairs of before and after images at different angles; calculating an area of the profile, including a submental area, for both of the matched before and after images for at least one of the pairs; and identifying changes in the matched after image when compared with the matching before image.