Site Top FAQ. What is biometrics? How does finger vein authentication work? Was finger vein authentication technology developed by Hitachi? Additional research improved that technology and inspired additional research and commercialization of finger- and palm-based systems. Typically, the technology either identifies vascular patterns in the bank of hands or fingers.
To identify patters in 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 processing techniques producing an extracted vascular pattern. From the extracted vascular pattern, various feature rich data such as vessel branching points, vessel thickness and branching angels are extracted and stored as a template.
In vascular pattern in fingers, near-infrared rays generated from a bank of LEDs penetrate the finger or hand and are absorbed by the hemoglobin the blood. The areas in which the rays are absorbed i.
Image processing can then construct a vein pattern from the captured image. Others use technology that detects the artifacts created in recording and playback. For some security systems, one method of identification is not enough. Layered systems combine a biometric method with a keycard or PIN. Multimodal systems combine multiple biometric methods, like an iris scanner and a voiceprint system.
Iris scanning can seem very futuristic, but at the heart of the system is a simple CCD digital camera. It uses both visible and near-infrared light to take a clear, high-contrast picture of a person's iris. With near-infrared light, a person's pupil is very black, making it easy for the computer to isolate the pupil and iris. When you look into an iris scanner, either the camera focuses automatically or you use a mirror or audible feedback from the system to make sure that you are positioned correctly.
Usually, your eye is 3 to 10 inches from the camera. When the camera takes a picture, the computer locates:. Iris scanners are becoming more common in high-security applications because people's eyes are so unique the chance of mistaking one iris code for another is 1 in 10 to the 78th power [ ref ]. They also allow more than points of reference for comparison, as opposed to 60 or 70 points in fingerprints.
The iris is a visible but protected structure, and it does not usually change over time, making it ideal for biometric identification. Most of the time, people's eyes also remain unchanged after eye surgery, and blind people can use iris scanners as long as their eyes have irises. Eyeglasses and contact lenses typically do not interfere or cause inaccurate readings. As with irises and fingerprints, a person's veins are completely unique. Twins don't have identical veins, and a person's veins differ between their left and right sides.
Many veins are not visible through the skin, making them extremely difficult to counterfeit or tamper with. Their shape also changes very little as a person ages. To use a vein recognition system, you simply place your finger, wrist, palm or the back of your hand on or near the scanner.
A camera takes a digital picture using near-infrared light. The hemoglobin in your blood absorbs the light, so veins appear black in the picture. As with all the other biometric types, the software creates a reference template based on the shape and location of the vein structure.
Scanners that analyze vein geometry are completely different from vein scanning tests that happen in hospitals. Vein scans for medical purposes usually use radioactive particles. Biometric security scans, however, just use light that is similar to the light that comes from a remote control.
NASA has lots more information on taking pictures with infrared light. Some people object to biometrics for cultural or religious reasons.
Others imagine a world in which cameras identify and track them as they walk down the street, following their activities and buying patterns without their consent. They wonder whether companies will sell biometric data the way they sell e-mail addresses and phone numbers.
People may also wonder whether a huge database will exist somewhere that contains vital information about everyone in the world, and whether that information would be safe there. At this point, however, biometric systems don't have the capability to store and catalog information about everyone in the world. To protect the privacy of data, the image is usually stored as encrypted templates.
Palm vein scans are used for personal identification. Palm vein scan recognition is a simple and reliable way of personal authentication. Accuracy rates are higher than those for face recognition, finger scans, and most current biometric technologies.
But, of course, there are some cases when the image appears blurred, which can negatively impact the accuracy of recognition. Palm vein scanners first appeared in the s, introduced by Joe Rice from Kodak company. However, at first, it failed to become a widespread technology. Vein scanners became a commercial product only in the late s, and their implementation in different areas started in the s. Only fill in if you are not human. Submit a request for biometrics implementation. Get demo access to our solution or want to calculate the cost of licenses?
Please fill out the contact form. We will send a password for the archive with files Security code to the archive. I agree with processing of my personal data. Thank you for your interest in our solution. Your request has been received and is being reviewed.
0コメント