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.
The net result is that Lumidigm sidesteps the problems that conventional technologies face in real world conditions. Additionally, our subsurface capability allows us to discriminate a real finger from an imposter or “spoof” fingerprint, making Lumidigm a leader in liveness detection.