Bioscrypt provides the technology required for an end-to-end biometric system as shown in Figure 1. This consists of components for:

• the acquisition of the 3D data;

• data processing where the 3D surface is reconstructed for further recognition;

• creation of the biometric template from the extracted feature and

• the eventual matching (recognition) based on a comparison of acquired and previously enrolled biometric templates.

Figure 1 - Bioscrypt Core Technology development. The hardware and grey boxes are Bioscrypt proprietary face capturing technology. The essence of structured lighting consists in projecting a pattern of known space structure at the subject's face. The structured light is distorted by the individual facial geometry, and these distortions are unambiguously defined by the form of the scanned surface. Having defined compatibility between elements of the initial and determined structure of the coded light beam, by means of reconstruction algorithms, it is possible to precisely restore the geometry of the registered surface.

Face capturing refers to the moment when the camera and the special light take a "picture" of the target. This module includes the software necessary to automate the acquisition process by mean of PCs. The software controls the hardware functionality and synchronizes all the necessary steps of the acquisition process.

A simplified scheme on how the capturing works is represented in the following figure:

Figure 2 - The digitizing equipment. (A) The special projector shoots a structured light (a pattern) onto the face; (B) The pattern is then distorted by the face's surface feature; (C) The camera records the face and the distorted pattern that contain the key information needed to reconstruct the 3 coordinates of all points belonging to the face's surface.