subject: Parts of the Body to be Used as an ID or a Password [print this page] Today, several parts of the body are starting to be used as an ID or password. They are in the followings:
- Fingerprint
The use of this part of the body is very popular as well as an ID or password. Sensors used to scan fingerprints vary widely. There are sensors that can only check one fingerprint and there are sensors that can check more than one fingerprint.
The injury on fingerprints can cause the fingerprint is difficult to detect. During the wound is not too deep, there are several sensors that can still recognize it. Of course, the sensors with the sharpness like this will be more expensive than fingerprint sensor with unusual sharpness.
The application of fingerprints as part of a security system is now more widespread. Even, today there is a mouse that requires the user's fingerprint in its use.
- Geometric of hand
The geometric of hand is also known as hand shape. Its parts of the data include the size of the hand, palm shape, and the shape and size of each finger. Sensors used to detect different geometric of hand are different from the sensors used to detect fingerprints.
Mode of sampling of this part of the body is also more complicated because it must be done from various perspectives. Therefore, biometrics is considered to be more accurate and the data is more difficult to be falsified. However, the accessing process will also run longer. Therefore, you should not use this system for an open space or for applications that are used by many people (such as absenteeism).
- Eye
The human eye is very unique. Each eye ball of human is almost the same. There are two parts that are frequently used as part of the eye biometrics, namely the retina and iris. Iris is easier to use compared to the retina. To analyze the retina of the eye, a user must look at the focus that has been determined and the analysis process will also not be done when a user uses sunglasses.
In the contrary, technology with iris is not as difficult as retina of the eye. Users do not need to stare straight into focus. And, the users of sunglasses can still be recognizable.
- Form of face
Biometrics technology, which analyzes the shape of face, is already used in some places too. One of the places is the airport. The device that functions as sensor for this technology is generally an ordinary CCTV camera. And, the system used is the system whose data are stored in a network.
The images that are obtained by the CCTV cameras will be processed automatically by a computer that is connected directly to police data. Every passing face will be seen to fit in the existing data on the network. If there are similarities, then the alarm will sound and tell the attendant.
To use the form of the face as part of a security system, the samples taken must be complete, meaning that sampling should be conducted from various directions. It is just as the use of hand geometry.
- Voice
Sound waves can also be used as a unique identity. Unfortunately, for this one, the situation of surroundings will affect. So, its application must be in the room or environment that is not crowded. The higher the tolerance which is owned by a sensor, the more expensive the price of sensor is.
Parts of the Body to be Used as an ID or a Password
