Iris recognition systems

An iris recognition identification system suitable for capturing an image of an iris free from specularities from a spectacle-wearing user, the system comprising:

• an image capture device for capturing one or more images of the spectacle-wearing user's eye;
• a first illumination device for illuminating the spectacle-wearing user's eye from a first illumination position associated with a first optical path;
• a determining module for determining if a first captured image illuminated from the first illumination position, comprises a specular image located in a first region of interest, the first image of interest comprising an image of the iris, the specular image being formed by light reflected from the spectacles, the determining module being configured to analyze the first image to identify if the location of the specular image is at least partly coincident with the iris image;
• a second illumination device for illuminating the spectacle-wearing user's eye from a second illumination position;
• and wherein
• the second illumination position is associated with a second optical path different to the first optical path such that the location of the specular image is shifted to a second region in a second captured image when the second illumination device is active, the second region being coincident with at least one of an image of a sclera of the spectacle wearing user's eye and an image of a pupil of the spectacle wearing user's eye in the second captured image.

An illumination support block for use in an iris recognition identification system, comprising:

• a first portion comprising one or more light sources associated with a first illumination position;
• a second portion comprising one or more light sources associated with a second illumination position;
• and wherein
• the block is arranged such that in use light emitted from a light source associated with the first portion forms an acute angle with respect to light emitted from a light source associated with the second portion.

An iris recognition identification system suitable for capturing an image of an iris free from specularities from a spectacle-wearing user, the system comprising:

• an image capture device for capturing one or more images of the spectacle-wearing user's eye;
• first illumination source for illuminating the spectacle-wearing user's eye from a first illumination position associated with a first optical path;
• a processor for determining if a first captured image illuminated from the first illumination position, comprises a specular image located in a first region of interest, the specular image being formed by light reflected from the spectacles, the first region of interest comprising an image of the iris, and the processor being arranged to analyze the first image to identify if the location of the specular image is at least partly coincident with the iris image;
• second illumination source for illuminating the spectacle-wearing user's eye from a second illumination position;
• and wherein
• the second illumination position is associated with a second optical path different to the first optical path such that the location of the specular image is shifted to a second region when the second illumination source is active, the second region being coincident with at least one of an image of a sclera of the spectacle-wearing user's eye and an image of a pupil of the spectacle-wearing user's eye.