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Bioscrypt 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 Bioscrypt camera projects an invisible structured light pattern onto the face
- The light pattern is distorted by the surface geometry of the face
- The 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
Bioscrypt 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
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