Artificial Intelligence: Nowadays smartphone is not just a means of calling or sending messages, but it has become the biggest security guard of our digital life. Especially since AI based face unlock technology began to be used in it. You must have seen that as soon as the phone comes in front of your face, it gets unlocked immediately. But have you ever wondered how this technology works and how does AI identify us? Let’s know
What is face recognition?
Face recognition means facial identification technique. In this, the camera of the smartphone scans your face and makes a unique digital map. This map is based on different points of your face (eg eye distance, nose size, position of lips). This data is safe in the memory of the phone through AI algorithm.
How to identify AI
AI means the role of Artificial Intelligence is the most important here. Whenever you bring the phone in front of the face, the camera immediately captures the live image of your face and matches it with a pre -saved facial map. AI works at many levels in this process.
- First the camera recognizes whether the front has a face or not.
- Then AI scans the features of that facial, such as the depth of the eyes, the joy line, the cheekbones etc.
- After this the phone compares with the data saved. If both go out the same, the phone is unlocked immediately.
2D and 3D face unlock
2D face unlock uses only a flat image taken from the camera. It is sharp but weakened in terms of security. Sometimes you can cheat with photos. At the same time, infrared sensor and dot projector are used in 3D face unlock. It prepares a three-dimensional map of your face so that it cannot be cheated by photos or videos. Apple’s face id is based on this technique.
How strong is security?
AI based face recognition technology is getting better. Out of about 1 lakh phones with 3D technology can identify the wrong face. At the same time, 2D phones have more risk. This is the reason that most of the 3D face unlock is given in premium smartphones.
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