IrisCheck™

Biometric iris image quality analysis and iris camera abstraction

IrisCheck™ is a software development kit (SDK) used for automated quality analysis and compliance assurance of biometric iris images. It performs advanced analysis and image processing to assign quality scores, detect non-compliant features, and perform JPEG 2000 compression according to the ISO/IEC 19794-6 standard. IrisCheck operates equivalently with different iris cameras from different vendors, enabling an enrollment application to operate independently from cameras and matchers.

IrisCheck Screenshot

Applications

Iris recognition

Iris recognition

Automated Biometric Identification Systems (ABIS)

Automated Biometric Identification Systems (ABIS)

Biometric authentication

Biometric authentication

Citizen ID

Citizen ID

Border management / border security

Border management / border security

Features & Functionality

Performs quality analysis and compliance assurance

Performs quality analysis and compliance assurance

Helps automate iris image capture

Helps automate iris image capture

Automatic iris segmentation

Automatic iris segmentation

Improves capture process efficiency

Improves capture process efficiency

Image output as ISO 19794-6 objects or “Kind” images- Kind 1: Uncropped- Kind 2: VGA- Kind 3: Cropped- Kind 4: Cropped and masked

Image output as ISO 19794-6 objects or “Kind” images- Kind 1: Uncropped- Kind 2: VGA- Kind 3: Cropped- Kind 4: Cropped and masked

Ensures compliance of iris images with- NIST IREX I Report (NISTIR 7629)- NIST IREX II Report- ISO/IEC 19794-6 data interchange format standard- ISO/IEC 29794-6 iris quality standard (draft)

Ensures compliance of iris images with- NIST IREX I Report (NISTIR 7629)- NIST IREX II Report- ISO/IEC 19794-6 data interchange format standard- ISO/IEC 29794-6 iris quality standard (draft)

Assigns quantitative quality scores that correlate to matching performance

Assigns quantitative quality scores that correlate to matching performance

Fully featured C Language API

Fully featured C Language API

C#/.NET wrappers

C#/.NET wrappers

Example programs with source

Example programs with source

Java Native Interface support

Java Native Interface support

Microsoft Windows and Linux support

Microsoft Windows and Linux support

IrisCheck performs several analyses to assign a quality score to each image based on the following characteristics derived from ISO/IEC 29794-6:

  • Iris characteristics and geometry
  • Pupillary dilation
  • Iris eccentricity
  • Pupil/iris displacement ratio
  • Eyelid occlusion
  • Off-axis gaze angle
  • Contrast
  • Usable iris area
  • Resolution (e.g. iris radius in pixels)
  • Anomalies and non-compliant features
  • Degree of focus blur
  • Degree of motion blur
  • Patterned contact likelihood
  • Degree of shadow attenuation
  • Degree of specularity

IrisCheck applies advanced image processing algorithms to optimize the image for matching and ensure compliance:

  • Specularity removal
  • Pupil segmentation
  • Iris segmentation
  • Parametric curve fitting
  • Eyelash detection
  • Shadow detection

IrisCam API

IrisCam API is a software library included in the SDK that provides abstraction of several market leading iris cameras. Support for new cameras is added in subsequent revisions of the SDK as they become available. It enables the same enrollment application to be used with the different cameras over time and across the system. An up-to-date list of iris cameras supported by IrisCam API is available upon request.