All information can be found more frequently on the Internet that the new Galaxy Note 7 will be equipped with iris scanner. And, for example, we have doubts about this. In this regard, the interest in this type of scanners is growing. So we decided to tell you about the principle of operation of the scanner iris, or as it is commonly called, iridoskanera.
When you ask about the color of your eyes, it is not so much about the color of the whole eye, and the color of the iris.
The iris of the eye is important, as it is it plays a key role in the formation of eye color. If you look at the iris, you will notice that it has a volumetric image of the fibers:
It is this drawing iris scanner, and reads. All of it is unique – as in the case of fingerprints. read the procedure of drawing the fiber begins with the activation beam of near-infrared light, whereby the camera more accurately determine the pattern, also with the help of such a beam can unlock devaysa in the absence of any lighting.
After reading the camera picture it is converted to the code, which is compared with the base codes in the case of coincidence of access to the device is received.
However, what is the principle of the scanner is in Note 7? A feature of the scanner Note 7 was the presence of additional phases. First of all, the device using conventional front-facing camera will scan the room for the presence in the frame of your face and eyes. Determine their position in the case enters the infrared beam and the camera, scanning the iris eyes.
On the planet there are people with a feature in the form of heterochromia, when the two eyes are different colors. According to statistics, less than 1% of the population suffer heterochromia. The most common eye color is brown, is followed by green, amber and silver colors.
Why not to scan using the front camera? Unfortunately, the front camera is sensitive enough and is not able to determine the pattern of the iris fibers. In addition, the feature of the camera, scanning the iris is a very small viewing angle, which helps to focus on a specific point.
What is the difference iris scanners from retinal scanners eyes?
Let’s say right away Both scanner perform substantially the same work, but in the first case there is an iris scan, in the second – scans the part of the eye that converts light into visual information. And, of course, retinal scan – a complex process and requires the user to greater accuracy and smaller distance between the device and the eye
In this regard, the most popular get exactly iris scanners.. Imagine a man who will periodically close bring PHABLET to face – not everyone will understand and not many will
Why do you need a scanner iris
In fact, we already have fingerprint scanners.? ! Not so simple. Scanners iris is more accurate, more secure and cheap enough to be embedded into inexpensive 200-dollar smartphone
Less fingerprint scanners -. Opportunity to fake fingerprints, because every day you are to something touching, your fingerprints are on subjects who with the help of special means an attacker can replicate in the future be used for their own purposes, including unlocking the smartphone. In addition, dirty, wet fingers recognized fingerprint scanner with great difficulty.
On materials phonearena
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