Biometric: 'Human barcode'

Science recognition is growing. Over the past 20 years, scientists have discovered many different methods, many new physical features to distinguish this person from others. In addition to the fingerprints that we are familiar with, the ' five veins ', including the smell, the vein, the lip, and the eye, the blood will be important biometric data to determine that it is only you only

From extremely accurate ' certification cards ' .

Along with the advent of the internet and electronic cards, we have to remember more and more passwords and personal codes. They need for e-mail, cash card, phone card, electronic payment . They also need for security and protection work such as placing in front of the office door or locking the door. If you forget them, it will be a big problem, to get into the hands of some thief might cost a lot.

That is why scientists have to work hard to find new material characteristics in identity and identity without having to memorize and not be afraid of being forgotten, lost or stolen.

In addition to long-used fingerprints , a number of new types of ' fingerprints ' have been proposed to select material properties in the identification science such as:

- Lipstick : The veins on each person's lips are very colorful but not changed forever. In recent years, experts have made new discoveries in the field of lipstick research. A Japanese doctor after studying the lipstick of tens of thousands of patients drew the following conclusions: The lip of a colorful human being, no one resembles anyone. The female lip line is usually concave, and men have a convex shape.

Techniques to measure biological identification are more and more modern.(Photo: SK & D)

- Eye: The eye is the retinal veins in the eye. The retina is a sophisticated complex structure. Each retina's structure is different. Experts using electronic cameras can capture images of the retina in the human eye and use it to examine each person individually. American scientists based that to build a eyewitness test machine and use it in state defense agencies and state apparatus. The staff before being recruited to work will be photographed with the retina with a two-lens electronic camera and store the encrypted image in an inspection machine. Later, every time I went to the agency, just look at the monitor, press the button, the retina appears, it will be easy to distinguish fake or real. This inspection may seem very complicated, but it is actually very simple, only a few seconds later. Experts said that this assessment is more accurate than fingerprint verification, not accurate to one part per million, but the procedure is simple and takes less time.

- Blood clots : Scientists after discovering human blood include 4 groups (O, A, B, AB), also discovered in human blood several hundred biochemical substances identified by genetic genes, have can be used to distinguish different blood levels. Scientists, thanks to electronic circuit technique, conduct a blood test in the human body, can see circuit circuits, ie blood vein. The blood of each person is not the same, which is a factor that distinguishes one person from another.

- Odor : Because everyone has a body odor, when they leave, the odor odor molecule remains in the air where it came. Based on this phenomenon, the police can collect the air to bring about the chemical composition analysis, which will detect the smell that the object needs to identify, then the ' package ' of scent obtained in one The clean cloth will not smell and store in a private place to provide a distinctive hunting dog, thereby finding the suspect.

- Vân tiếng : Vân thanh học is a science subject similar to fingerprint study. When pronouncing, the sound of each person is different, with different shapes and different capacities. Modern science and technology turns sound into electric waves, transforms electric waves into sound, through analysis, sound description as a project, through multiple comparisons it is possible to find the voice of the person in search. countless different voices. Therefore, reputation can become a basis for identifying personalities.

To the ID card, the passport contains biometric data

The US requires starting to use biometric indexes from October 2004. Currently, citizens of countries with a visa regime with the US when entering this country are fingerprinted. The next step is to bring biometric data straight into the visa (in the form of magnetic strips). France also said its similar intentions. In Russia, while Russian citizens have not been familiar with new passports, the government has begun to talk about the need to switch to more advanced identity documents. Maybe at the end of 2008, plastic passport cards containing fingerprints, fingerprints, lipstick data . will be replaced with traditional passport books.

Support for this field has a technique called Biometric - a biological measuring device. It is the task of assigning mathematical representations to human traits, which, compared to previously stored data, can provide accurate results for verifying a human being, distinguish this person from others

Mr. Victor Minkin - Vice Chairman of the Russian Biometrics Association said that to determine identity, only seeing each fingerprint is not enough, the identification of fake papers or stolen papers will be disabled if Fingerprints are faked with a thin piece of silicon. In theory, the iris has 300 standards for comparison while fingerprints only have 50 standards.

But in practice, iris examination is not very convenient because it requires the person to be checked to adjust the eye to a certain position in front of the scanner lens and look at it without blinking or moving face. This means that each solution has its own disadvantages. Therefore, to reduce errors, it is proposed to combine techniques together. Many international airports such as Singapore's Changi Airport have introduced automated entry checkpoints that incorporate biological measurement techniques that identify both fingerprint, iris and voice.

Tuan Anh