Affinity.CPK™

Affinity™ from OmniPerception is the technology that powers a special suite of hardware and software tools providing fast, accurate and compact Facial Image Capture, Quality Control and Automatic Facial Recognition

Affinity.CPK™ is a hardware component of the Affinity™ Face Recognition suite, purpose built to allow the best images to be taken and ensure closest possible compliance with image quality standards. When capturing facial images – either with a digital camera and flash or any other unit using point light sources – a person’s face or glasses will almost always give rise to specular reflections. These specular reflections will mar the images taken and make them much less useful for identification purposes. They are likely to be non-compliant with the relevant industry standards, such as ISO 19794-5 used for e-Passports.

OmniPerception’s new patent pending Affinity.CPK™ Cross Polarisation Kit almost completely eliminates this problem.

Figure 1 demonstrates a facial image captured from a camera and flash without Affinity.CPK™ with the camera set to fully automatic mode. Under these conditions, significant specular reflection is noticeable on the glasses and forehead, saturating the image at these points.

Figure 1

Figure 2 shows a facial image captured with the same camera and settings but using Affinity.CPK™. This time, the facial image is much more evenly lit and has virtually no specular reflection. This image will perform much better in use over time and is more closely compatible with the relevant image standards.

Figure 2

Functionality Overview

• Easily attaches to most standard digital cameras
• Allows capture of excellent facial images, free fromspeciular refletion
• Robust, effective and low cost

Applications

• The capture of facial images for:
• Machine Readable Travel Documents, Passports, e-Visas etc
• Driving Licences and Identity Cards
• Police Custody Suites, Virtual Identity Parades, Criminal Records, etc
• Staff Badges, Membership Cards, etc - for physical access control
• Logical Access Control authorisations

Technical Details

Affinity.CPK™ can be mounted on most D-SLRs, digital compact cameras and also on web-cams and video cameras as required. Affinity.CPK™ filters the incident light before it hits the face. The reflected light from the face is then again filtered before it enters the lens. This set of filters ensures that the majority of specular reflected light is prevented from reaching the camera sensor. The result is an evenly lit facial image.

Figure 3 shows an outline schema of the process

Figure 3