Mobility 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. An apparatus for iris image acquisition, the apparatus comprising:
a sensor; a lens, in optical communication with the sensor, to produce an out-of-focus infra-red image of a subject's iris on the sensor and an in-focus non-infra-red image of a feature other than the subject's iris on the sensor; and a filter array, disposed between and in optical communication with the sensor and the lens, to filter light propagating to the sensor via the lens, the filter array comprising a plurality of filter elements at vertical and horizontal sampling intervals that form a plurality of infra-red cut regions that pass visible illumination for sampling the in-focus non-infra-red image with a first portion of the sensor, and a plurality of infra-red pass regions that pass infra-red illumination for sampling the out-of-focus infra-red image with a second portion of the sensor, wherein the plurality of infra-red pass regions are configured to sample the out-of-focus infra-red image at or below a corresponding Nyquist limit for the infra-red pass regions.