Patent ID: 8724857
Filing Date: 2014-05-13
Classification: G06K,G06T

Abstract:
1. A computer-implemented method comprising: obtaining a first image of an eye, wherein the first image includes a view of a portion of a vasculature of the eye external to a corneal limbus boundary of the eye; determining a plurality of metrics for the first image, wherein the metrics include a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image by determining a relationship of a variation of a first color difference signal to a variation of a second color difference signal; determining a quality score based on, at least, the plurality of metrics for the first image, wherein the quality score is a prediction of a match score that would be determined based on the first image and a second image, assuming the first image and the second image included a view of the same person's vasculature; and rejecting or accepting the first image based on the quality score.