Patent ID: 9607231
Date: 2017-03-28
CPC Classifications: G06K,G06T

Claim:
1. A method comprising: (a) identifying a first plurality of pigmented or vascular skin marks in a first image depicting a first skin area of a subject, the first image having a first pixel resolution; (b) identifying a second plurality of pigmented or vascular skin marks in a second image depicting a second skin area, the second image having a second pixel resolution; (c) aligning the first plurality of skin marks with the second plurality of skin marks, the aligning comprising selecting a base image and its pixel resolution from among the first image and the second image; and (d) determining a level of alignment between the first plurality of skin marks and the second plurality of skin marks based on identifying a number of pairs of aligned skin marks, each pair having a distance in pixels between the aligned skin marks that is less than or equal to a pixel distance threshold, thereby determining a likelihood of the first skin area and the second skin area overlapping and being from the same subject, wherein one or more of the above steps is performed by a processor.