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Is Facial Recognition Access Control A Good Choice?

  • Author:HFSecurity
  • Release on :2020-07-13

The access control system can provide a variety of credentials, but in the past few years, biometric technology has really become popular. Although fingerprint scanners have been popular for some time, facial recognition is becoming a possibility for access control.


But is face recognition a good choice to protect the security of buildings through access control systems? is it safe? Are there any disadvantages? Continue reading to find out.

How facial recognition access control works


You may be good at recognizing faces. You may find it easy to identify the faces of family, friends or acquaintances. You are familiar with their facial features, their eyes, nose, mouth, and how they fit together.


This is how facial recognition systems work, but the algorithm scale is large. Where you see a face, recognition technology can see the data, and the data can be stored and accessed. For example, according to a study by Georgetown University, half of all images of adults in the United States are stored in one or more facial recognition databases, which can be searched by law enforcement agencies.


Facial recognition uses a 2d or 3d scanner (or camera) to scan the image, and then uses advanced algorithms to map and detect the features that make your face unique. By identifying all the different features of the face, for example, the distance between the eyes and the forehead, the distance between the eyes, the forehead and the chin, and the width of the eyebrows and lips.


Then, the recognition system converts them into hundreds of data points, which represent the unique geometric shape of your face. For practical purposes, this may be referred to as "facial fingerprint". The data can be displayed as an image or as a data number that can be quickly sorted and compared with other facial data sets.



Step 1. Capture photos of your face from photos or videos. Your face may appear alone or in the crowd. Your image may show you looking straight ahead or almost sideways.


Step 2. The facial recognition software reads the geometry of your face. The key factors include the distance between the eyes and the distance from the forehead to the chin. The software can recognize facial signs (a system can recognize 68 of them), which is the key to recognizing your face. The result: your facial features.


Step 3. Compare your facial signature (a mathematical formula) with a database of known faces. Imagine: At least 117 million Americans have images of their faces in one or more police databases. According to a report, the FBI has obtained 412 million facial images to search.


Step 4. Determine that your facial features may match the images in the database of the facial recognition system.

Essentially, this works in the same way as iris scanners and fingerprint scanners, but is uniquely programmed to work with facial recognition. To compensate for unusual camera angles or poor image quality, facial recognition algorithms can actually detect these angles and make the adjustments needed for face printing.


How to use facial recognition? what is the benefit?


Facial recognition is used for various security purposes. The most basic method now is to unlock your smartphone, but it is also used in many situations that may be helpful for analysis, such as retail or airport checkpoints.


However, perhaps the most effective application is access control. Fingerprint scanners have become a popular and reliable choice for biometric credentials to provide tighter and more convenient security, but now many facilities can choose to use facial recognition.


why? Because facial recognition is so simple; all employees or authorized personnel must do is stand in front of the scanner and the system will do all the work-recognize their unique facial expressions and usually unlock the assigned door within a few milliseconds. This eliminates the hassle of a door control system that is already easy to use. It's almost as if there is no security system, but it is equally secure. They are comparable to fingerprint scanners in terms of reliability and ease of use-not to mention the ease when wearing gloves.



Is facial recognition access control more difficult to crack and smarter than fingerprint scanners? Not necessarily – but it is equally safe. Determined hackers will always come up with a way to make the system intelligent when they really want it, but facial recognition provides one of the best, comprehensive, and safe choices for biometric access control systems.



Who uses facial recognition?


Many people and organizations use facial recognition in many different places. The following is a sample:


The US government is at the airport. The facial recognition system can monitor people entering and leaving the airport. The US Department of Homeland Security uses this technology to identify people whose visas have expired or may be subject to criminal investigation. Customs officials at Washington Dulles International Airport first arrested an impostor who tried to enter using facial recognition technology in August 2018.


Mobile phone manufacturer's products. Apple first used facial recognition to unlock its iPhone X. Using face ID for identity verification can ensure your identity when accessing your phone. Apple said that the chance of a random face unlocking the phone is about one in a million.


University classroom. Facial recognition software can be used to roll call. If you decide to skip classes, your professor will know. Don't want your smart roommate to take the exam for you.


Social media company on the site. When you upload photos to the platform, Facebook uses an algorithm to recognize faces. The social media company asks if you want to tag the person in the photo. If you choose yes, it will create a link to its profile. Facebook can recognize faces with 98% accuracy.


Entrances and restricted areas for business activities. Some companies have used security badges for facial recognition systems.


Place of worship for religious groups. The church uses facial recognition to scan their congregation to see who is present. This is a good way to track regular and non-routine personnel, and helps to customize donation requests.


retail store. Retailers can combine surveillance cameras and facial recognition to scan the shopper’s face. One of the goals: to identify suspicious characters and potential pickpockets.


Advertising marketers and advertisers. Marketers often consider factors such as gender, age, and race when targeting groups of products or ideas. Even in events like concerts, facial recognition can be used to define these audiences.


Advertising marketers and advertisers. Marketers often consider factors such as gender, age, and race when targeting groups of products or ideas. Even in events like concerts, facial recognition can be used to define these audiences.


What are the disadvantages of facial recognition access control?


The face recognition access control that most people care about most is privacy. They do not want to store their face images somewhere. Therefore, it is important that companies that use facial recognition only use it to store personal data of employees who have access to secure facilities. It should also only be used where fast and simplified security work is required without sacrificing security.


Will facial recognition replace fingerprint scanners soon?


It may not come soon, but if the AI ​​deployed in these systems continues to grow and improve, it may one day be realized. At present, facial scanners used for access control are not as popular as fingerprint scanners, but this situation may change over time.


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