Hand Vascular Pattern Recognition, also called as Hand Vein Pattern Authentication, is a biometric identification technology. In this method, Using near-infrared light, reflected or transmitted images of blood vessels of a hand or finger are derived and used for personal recognition. Different Vascular Pattern Recognition systems use different parts of the hand, palms, or fingers, but rely on a similar methodology. Researchers have determined that the vascular pattern of the human body is unique to a specific individual and does not change as people age.

How Vascular Pattern Recognition System work?

Vascular Pattern in the Back of Hands

Near-infrared rays generated from a bank of light emitting diodes (LEDs) penetrate the skin of the back of the hand. Due to the difference in absorbance of blood vessels and other tissues, the reflected near-infrared rays produce an image on the sensor. The image is digitized and further processed by image processing techniques producing the extracted vascular pattern. From the extracted vascular pattern, various feature data such as vessel branching points, vessel thickness, and branching angles are extracted and stored as the template.

Vascular Pattern in Fingers

Near-infrared rays generated from a bank of LEDs penetrate the finger or hand and are absorbed by the hemoglobin in the blood. The areas in which the rays are absorbed (i.e., veins) appear as dark areas in the image taken by a Charge-Coupled Device (CCD) camera. Image processing can then construct a vein pattern from the captured image. Next this pattern is digitized and compressed so that it can be registered as a template.

Features of Hand Vascular Pattern Recognition Biometric Technology

  • Hand Vascular Pattern is difficult to forge — Vascular patterns are difficult to recreate because they are inside the hand and, for some approaches, blood needs to flow to register an image.
  • Hand Vascular Pattern Recognition (HVPR) is contact-less — Users do not touch the sensing surface, which addresses hygiene concerns and improves user acceptance.
  • Infrared-like lights are used to penetrate the human skin and capture different hand vascular patterns of veins present at the back of a hand.
  • Vascular pattern recognition offers higher usability and thus, devices like hand vascular scanner are fit for every single user in the organization.
  • High accuracy is offered by these devices with admirable false acceptance and false rejection rates.

Applications of Hand Vascular Pattern Recognition Biometric Technology

  • Hand Vascular Pattern Recognition can be used for Verification (1:1) and Identification (1:many) — Users’ vascular patterns are matched against personalized ID cards/smart cards or against a database of many scanned vascular patterns.
  • Hand Vascular Pattern Recognition Biometric security system can be deployed in ATMs, hospitals, and universities for: ID verification, high security physical access control, high security network data access, and POS access control.