A method of image processing within an image acquisition device comprises acquiring an image including one or more face regions and identifying one or more iris regions within the one or more face regions. The one or more iris regions are analyzed to identify any iris region comprising an iris pattern of sufficient ...

An image processing method for iris recognition of a predetermined subject comprises acquiring through an image sensor a probe image illuminated by an infra-red (IR) illumination source wherein the probe image comprises one or more eye regions and is overexposed until skin portions of the image are saturated. One or...

An iris image acquisition system (10) comprises an image sensor (14) comprising an array of pixels including pixels sensitive to NIR wavelengths; at least one NIR light source (16 18) capable of selectively emitting light with different discrete NIR wavelengths; and a processor (20) operably connected to the image s...

An image acquisition system for acquiring iris images for use in biometric recognition of a subject includes an optical system comprising a cluster of at least 2 lenses arranged in front of a common image sensor with each lens optical axis in parallel spaced apart relationship. Each lens has a fixed focus and a diff...