The train station has always been a place with a lot of people, especially during the holiday time. We all know that people are queued for a slower speed. We often waste a lot of time here. According to the latest news, the train station can also brush the face into the station! Someone asked if it is really reliable to brush your face?
2017 National Day, Mid-Autumn Festival holiday stack, constitutes a "super holiday" for eight days. In this rare opportunity to travel, the reporter is a member of the "Human Mountain Sea", went to Changsha to feel the arrogance of Chairman Mao when he stood proudly at the head of the Orange Island.
On the way back, the reporter was curious that there were few people in the queue that had been congested in Changsha Railway Station. When they approached, they found that they were the right-most face recognition verifiers at the train station ticket gate. Due to work reasons, reporters often see relevant reports reporting the application of face recognition products in the railway station. They also saw netizens guessing and questioning these devices. Today, they finally have the opportunity to "test" them personally.
Train station face recognition first experience
According to the equipment prompt, the reporter puts the train ticket with the QR code facing up and the ID card facing down, put it into the orange entrance in the middle of the device, and then aligns the face with the camera to “brush faceâ€, which is about 1 second. The blue gate is opened and the machine is automatically released. The whole process is very fast and efficient.
I understand that the “brush face recognition†applied by Changsha Railway Station is more accurately “personal identificationâ€: the camera is installed on the automatic ticket gate. When the passenger approaches the machine, the camera collects photos on the spot, and the ID card chip The photos are compared. From the above point of view, due to the need for ID card verification, which is often referred to as the 1:1 identification process, the requirements for computing power are relatively low. But even then, the ability to successfully identify journalists in just one second is still a little surprising:
Since my ID card was processed in the first year of high school (2008), it has been almost ten years since then, and the appearance has changed a lot. In the past, when I was flying or handling documents, the staff members would let me wait for the second time after reviewing;
In addition, because the equipment is placed at the entrance of the train station, the light is strong, and the machine can quickly identify it.
After entering the station, during the waiting interval, the reporter chatted with the train station staff. They said that these devices have been applied to the landing a few months ago. Passengers can use these machines to take a stop in just 3 seconds. After the success, the green light of the machine lights up and the gate opens. When the comparison fails, the red light is on. , prompt "Please perform manual verification".
They also added that there are three main prerequisites for going to the "brushing face":
First of all, there must be a physical ticket with clear and no damage to the ticket surface QR code, red and blue tickets;
Secondly, you need to remove the mask, sunglasses, hat, etc., to keep the face unobstructed;
In addition, since the machine can only identify ID cards at present, it is said that such other documents as passports, household registration books, driver's licenses, soldier certificates, military officers' certificates and the like are currently unrecognizable, and it is necessary to go to the manual inspection channel to enter the station.
As for the machine, it is easy to identify the reporter and compare it with the photo of the ID card ten years ago. It is not surprising that Chen Bin, Director of Ping An Technology AI. He was introduced in an interview with Lei Feng. The camera first locates the face in the picture when collecting the face image, and then locates feature points such as the corner of the eye, the tip of the nose, the corner of the mouth, the contour of the face, and then compensates for the light. The correction is performed on a small amount of occlusion objects. Finally, the deep feature learning algorithm is used to extract the identity features and compare with the background image of the ID card to identify the identity. In this process, the slight fat and thin makeup will not affect the recognition effect.
For the high recognition rate in the backlight environment, Shenzhen Feiruisi technology staff told reporters that many systems now use visible light face recognition technology to face the human face under natural light (sunlight, ordinary lighting, etc.) Detecting and capturing, the captured photograph is used to establish a mathematical model of the relevant face, and the information of the facial feature point is obtained and extracted, and the photo of the ID card of the back-end face database is compared, and the comparison result is output.
The advantage of face recognition scheme
In the follow-up process, the reporter found that the face recognition-based verification device has many advantages, including the following advantages:
1. Improve the speed of traffic. In the past, it was almost five seconds per person through manual inspection. After using the machine, it can be done for one second.
2. Improve recognition efficiency. The ability of the human eye to identify people with cosmetic, obese or altered hair styles is reduced relative to the machine, and it is not even accurate and quick to identify whether the identity card is consistent with the person.
3. Reduce the pressure on staff. In the past, during the National Day, Spring Festival and other holidays, the daily passenger flow index of the railway station increased, and the station staff manually checked the load seriously.
4. Improve the security level. Compare ID card photos and faces in real time to quickly determine if you are and whether you are at risk. It is reported that Shanghai's three major railway stations have recently applied a face recognition system to maintain the stability of the railway during the "Nineteenth National Congress" period, and implemented "special zone waiting cars, secondary security inspections, and full staff comparisons for passengers on the trains entering Beijing. , focus on the investigation."
There are many advantages, how about promotion?
The four advantages have pushed the face recognition verifier to a higher level. So how is such a "easy to use" device popular in domestic railway stations?
Fei Ruisi technology staff told reporters that at present some railway stations in China have adapted the relevant systems (generally larger provincial capitals), but due to the installation of equipment to plan the site in advance, the hardware facilities before the major changes, the later hardware installation, software Commissioning, system maintenance is cumbersome, and the price is relatively expensive. Currently, most of the small and medium stations have not been used.
According to a security practitioner, the relevant technologies have only emerged in the past two years and have reached a small scale. The relevant departments in each city have different perspectives. In addition, the review project also takes time. It is necessary to support the government for unified promotion.
He said that from the perspective of Party A (government), the requirements for related equipment in public places are relatively high, and the practice of landing for one to two years is an inevitable process. If during the trial period, the relevant technologies and products have changed the traditional mode of operation and greatly improved the efficiency of the work, then a few years later, it should be implemented nationwide. However, in this process, because the train station's face-lifting station is a 1:1 comparison process, the technical threshold is not particularly high, and there are many related solutions in the market. Therefore, there are also some manufacturers of “fishing in the water†to disrupt the market. Order, this requires relevant departments and agencies to speed up the introduction of relevant policies and standards.
Curiously, if the price of the face recognition related application is high, is there any other low-cost identification solution that can be applied?
Chen Bin, Director of Ping An AI, explained that the face is the only biometric information that can be collected without the user's active cooperation. The collection process of other biometrics, such as fingerprints and irises, needs to be based on the user's active cooperation, that is, if the user refuses to collect, high-quality feature information cannot be obtained. From the perspective of psychology, it is easy to be accepted by users through face recognition identity and human visual recognition experience. For example, when people collect fingerprints and irises, they will worry about privacy leaks, but they are photographed by hundreds of surveillance cameras on the street every day, but they are not invaded because the faces are naturally exposed and are considered to be natural features of identity recognition.
As for the price, it will be relatively expensive in the early stage of technology popularization, but as the technology matures and the number of market players increases, this problem will be solved.
summary
Judging from the initial experience of face recognition at Changsha Railway Station, the reporter was pleasantly surprised by the application of related technologies. Face recognition is not as unattainable as it was a few years ago, and the reach of technology is touching every aspect of people's lives. Perhaps, as the expert in the field of human body recognition technology at Beijing University of Aeronautics and Astronautics said, face recognition is the fastest and best way to realize artificial intelligence for related companies.
It is foreseeable that in the future, as the relevant technologies mature further and the cost of use is further reduced, relevant standards will be introduced one after another, and the “brushing face†will become extremely reliable.
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