Patent attributes
A system and method for classifying follicular units based on the number of hairs in a follicular unit of interest comprises (i) acquiring a digital image of a body surface having a follicular unit of interest; (ii) selecting a region of interest with the digital image which contains the follicular unit; (iii) segmenting the selected image to produce a binary image wherein the binary image defines a contour of the follicular unit; (iv) calculating an outline profile of the binary image which disregards concavities in the contour; and (v) determining the number of defects in the outline profile to determine the number of hairs in the follicular unit. The system and method may also adjust for hairs which converge beneath the skin and for images which appear as a single wide hair but which are actually multiple hairs.