3D Face Scanner from A4 Vision

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ID Warehouse » Biometrics » Face Scanners

3D Facial Scanner from A4 Vision
The Core Technology:

A4Vision technology enables the real-time capture of three-dimensional images of a subject’s face. The unique features of the subject’s cranio-facial structure are extracted and stored as a biometric template for automated human recognition. The method can be used either in identification or in verification.

1. Face Capture

Using structured light in near-infrared range:
The A4Vision projector shoots an invisible structured light pattern onto the face
The special pattern is distorted by the face’s surface geometry
The video camera precisely records the pattern distortion

2. 3D Reconstruction Process

Real-time reconstruction of the 3D facial surface:

The distorted pattern is input into a 3D reconstruction algorithm
A 3D mesh of the face is created by means of triangulation
The resulting face geometry is measurable in millimeters
The 3D reconstructed image is NOT stored in the database

3. Feature Extraction and Matching

A biometric template is extracted from the 3D facial geometry (skull curvature, etc)
The template is based on the unique rigid tissues of the skull which are unchanging over time
The resulting numeric template is stored in an ordinary database
Identification is performed by matching the biometric template against the enrollment database
Verification is performed by matching the biometric template against a template stored on a smart card

3D Technology Advantages

A4Vision technology is superior to other biometric technologies:
Is not affected by lighting conditions, background colors, facial hair or make-up.
Provides higher performance at different view angles
Is of higher accuracy in real-life environments

Want to hear more about 3D Facial Scanning?
For more information or to arrange a demonstration please call one of our Biometric specialists on 01268 419 101.