Mobile identity platform

摘要

The present disclosure is directed towards a compact, mobile apparatus for iris image acquisition, adapted to address effects of ocular dominance in the subject and to guide positioning of the subject's iris for the image acquisition. The apparatus may include a sensor for acquiring an iris image from a subject. A compact mirror may be oriented relative to a dominant eye of the subject, and sized to present an image of a single iris to the subject when the apparatus is positioned at a suitable distance for image acquisition. The mirror may assist the subject in positioning the iris for iris image acquisition. The mirror may be positioned between the sensor and the iris during iris image acquisition, and transmit a portion of light reflected off the iris to the sensor.

主权项

1. A method of iris image acquisition, the method comprising:
acquiring, by a sensor, a plurality of images of a subject, the plurality of images including a first image of an iris of the subject; determining, by at least one processor, a quality metric for the acquired first image, the quality metric determined using an estimated area of the iris visible in the acquired first image and a level of focus measured from the acquired first image; and responsive to the determined quality metric, acquiring, by the sensor, another image if the determined quality metric is lower than a predetermined threshold, and storing, in a memory, the acquired first image of the iris of the subject if the quality metric is higher than the predetermined threshold, wherein storing the acquired first image in the memory comprises including the first image within a predetermined maximum number of images allowed to be stored in the memory, each of the allowed images having a quality metric higher than the predetermined threshold.