Seeing Beyond the Surface
Multispectral imaging is a sophisticated technology that was developed to overcome the fingerprint capture problems conventional imaging systems have in less-than-ideal conditions. The core problem was that conventional technologies rely on unobstructed and complete contact between the fingerprint and the sensor, a condition that is elusive in the real world.
The more effective solution was based on using multiple spectrums of light and advanced polarization techniques to extract unique fingerprint characteristics from both the surface and subsurface of the skin. The nature of human skin physiology is such that this subsurface information is both relevant to fingerprint capture and unaffected by surface wear and other environmental factors.
Non spoofable technology
The technology allows to discriminate a real finger from an imposter or “spoof” fingerprint, making the sensor to be a leader in liveness detection. Multiple images of surface and subsurface fingerprint data is quickly acquired and reconstructed to produce a single high-quality fingerprint image.
The capturing process
Multiple illumination wavelengths, angles, and polarizations
Acquire images of objects whether or not they are in contact with the sensor
Raw images are combined to reconstruct the fingerprint or other object