How does Palm vein pattern recognition work？
The haemoglobin in your blood contains oxygen once it is transported from your lungs through the arteries to the tissues in your body. Once the blood flows back to your heart through the remaining veins, it has delivered that oxygen. Vein pattern recognition exploits this difference between oxygenated and deoxygenated haemoglobin. Deoxygenated haemoglobin actually has the property of absorbing infrared light. This makes the vein pattern visible as soon as you shine infrared light on it with a scanner.
The vein pattern in the palm is unique to everyone, allowing you to use it – by storing reference points in the pattern – as a means of identification and security technology. In most systems using vein pattern recognition, the vein pattern is stored as an ‘image’ and may or may not be encrypted. With the Anviz BioNano, on the other hand, the scanned reference points are stored directly in a so-called encrypted template; the vein pattern is already converted into code in the scanner. As a result, this form of palm vein pattern recognition has an extremely high level of security.