Application of facial recognition in real life

Recently, a company released an intelligent network video surveillance product with facial recognition technology in Hangzhou, and it is preparing to develop a commercial application product for facial recognition technology that can analyze passenger flow in a shopping mall in the other city. Not long ago, Xinchang Xuezi Tang Wenbin was also The application game that developed a facial recognition technology won the championship in the national innovation competition and was highly praised by the judges of Qihoo 360 CEO Zhou Hongyi. From face recognition technology in Hollywood blockbusters to face recognition applications in reality, face recognition is a wave of industry heatwaves in the area of ​​bio-security.

“Including Chinese and foreign research institutions such as the Chinese Academy of Sciences has been making unremitting research on facial recognition technology.” An expert from the Zhejiang Association of Security and Prevention Technology said that facial recognition technology has developed over the past 20 years and is currently relatively self-developed in China. Only a handful of facial recognition technologies are available. How to combine technology and application products and how to expand them into all areas is an urgent issue to be solved. However, once the creativity is realized, personalized products will bring about unlimited market.

Facial recognition technology in Hollywood blockbusters

At the bustling station, a well-dressed trench coat man rushed up against the crowd and looked around. From an outsider's point of view, he and the average traveler were impermanent. Actually, his contact lens continued to present personal information of each passenger oncoming. In less than one minute, the system locked a man...

The Hollywood blockbusters are always filled with cool hi-tech technology. The scene just now is the scene in the "Mission Impossible" IV scene where the agents use the facial recognition contact lens to hunt down the target. In fact, this type of face recognition technology has long been used in practical safety precautions.

"If the criminal has a criminal record, as long as his criminal information exists in the system database, he may trigger a linkage alarm once he has taken a camera over the surveillance head." Lan Wen, head of East China Region, Shenzhen Zhongkong "Smart Network Video Surveillance Products" said Recently, the company released an intelligent network video surveillance product with facial recognition technology in Hangzhou. This product can simultaneously search and identify 10 faces in the screen, and perform face recognition with existing databases within milliseconds. Identification and comparison, while video surveillance and access control linkage to achieve access restrictions, classification alarms, information records and other functions. If the product is installed at the main entrances and exits such as stations and customs, the efficiency of handling cases can be greatly improved.

“Even if you identify 10 faces at the same time, it is not enough. Once you have too many people in the picture, the face is too small to be identified.” According to a public security officer, the current facial recognition technology linkage alarm still exists background database size, face comparison Accuracy, pre-image data collection, three technical bottlenecks. "The greater the capacity of the back-end database, the higher the failure rate and the lower the accuracy of comparison." He believes that even if the database capacity is sufficient, the cameras installed in different places have different sharpness, and they have different light, different angles, and different distances. Under the face, the collected face may not be able to reach a recognizable level. Therefore, face recognition in the field of security needs to take some time.

The search efficiency of facial recognition is surprising

"Using face recognition technology, you can use existing face images for database searches." Wang Haiyang, an engineer at R&D center of Zhejiang Dahua Technology Co., Ltd., said that the current facial recognition technology requires the face of a camera to be larger than 20 pixels. Locked and linked with face database recognition. This recognition function also applies to video search.

"In intelligent video surveillance products with facial recognition capabilities, black and white lists or swiping employees can perform triggered photographic recordings when passing through the camera. These triggered pictures and images are stored separately to facilitate future searches. “Zhen Wei, the head of Shenzhen Deguang Electronics Co., Ltd. in Shenzhen, said that uploading the existing face image to the video database will result in similar image results and display in the image. At a corresponding point in time, you can immediately see the recording of the target object by simply entering the time. According to the introduction of Shenzhen Zhongcheng Technical Engineer, after the internal technical testing and application of the facial recognition technology's starting storage function, the search efficiency can be increased by up to 75%. That is to say, viewing the surveillance video for one hour can be adjusted as quickly as 15 minutes. The corresponding video.

This advantage has forced facial recognition technology to be urgently needed in any area requiring financial protection such as finance, education, and community management. According to Lan Wen, the person in charge of Shenzhen Zhongguan, a bank in Jiangsu has installed video surveillance products using facial recognition technology on ATMs located around the bank.

You can order food without a key without opening

Not long ago, Tang Wenbin, a student from Tsinghua University in Xinchang, who won the top spot in the development and application of face recognition technology in a national innovation and entrepreneurship contest, gave an example in his game, using his face recognition technology, the store’s customers When you enter the door, you will know who the customer is and provide personalized services.

“Using face recognition to help stores provide customers with faster and more personalized services, this hope is fully realized.” Zhan Wei said that face recognition includes two steps of search and comparison and recognition. Personal information preferences such as facial information and meal tastes are stored. When the guests are once again in the light, the camera can take the initiative to compare, quickly pop up customer information to remind service staff, even linked to the kitchen, so that guests can enjoy the intimate service without opening .

In August of this year, a U.S. shopping mall also adopted facial recognition technology. Through cooperation with social networking sites, it provided personalized services such as discounted information for mall customers. In addition to the establishment of black-and-white lists in the store, the supporting role of corporate management and community management has further increased the diversity of face recognition applications. “Some companies will encounter people who are unrelated or even malicious. They need to apply facial recognition technology to video surveillance products. Because only these people need to be blacklisted, companies can get more recognition and linkage capabilities. More time and preparation to properly handle some potential issues.” Zhan Wei introduced, in addition, a community in the field of intelligent video surveillance in the construction process applied to facial recognition, once completed, even if the household without a key, you can also through the face "This pass opens the door.

This is a technology that belongs to the future

How to communicate with merchants to raise the rent has always caused many malls and market managers to use their brains. Recently, a shopping mall in Dalian tried to use facial recognition technology to solve this problem. The person in charge of the mall stated that analysis of passenger flow data mainly includes two parts: passenger flow and passenger flow characteristics. Facial recognition technology not only can point the head, but also can display the characteristics of the passengers' age group, gender, etc., and analyze the effective passenger flow, just for them. Reasonable formulating rents for shops provides an effective basis.

“This technology belongs to the future. The premise is to truly realize the technical breakthrough in the rapidity of face comparison and the stability in the physical environment.” An expert in the security protection technology field in Zhejiang Province who has more than 20 years of experience in the industry stated that Face recognition is a kind of biometric identification. After more than ten years of research and development, it has always been a frontier technology that is of concern to the academic and business community. However, currently only a handful of domestic facial recognition technologies can be developed and researched, and it is not exceeded nationwide. 10, so there is still a huge market to be developed.

"The application of facial recognition technology is often not a single one, but it is inserted in a product with multiple functions (such as video surveillance)." The relevant person in charge of Dahua said that Tang Wenbin's face games are creative in facial recognition. One product, but more face recognition applications contain features other than face recognition. "These products are often customized according to customer needs. This is a bottleneck that facial recognition technology cannot fully promote over time." The relevant person in charge said.

How can it be an invasion of privacy? Difficult to define!

"I didn't authorize him to record and use my information. I grabbed my face and compared the information and infringed my privacy!" Imagine shopping malls, bars and restaurants wherever you go. Face recognition monitoring equipment, "whether privacy is violated" may be a topic of concern for many people.

In November last year, Facebook, the world’s most famous social networking site, was fined for not using the face recognition software developed in Europe when it was used, or for obtaining user consent, and in violation of EU and German laws. Coincidentally. Google’s smart phone recognizes the software as a passerby. Eric Schmidt, Google’s executive chairman, said that the reason for the snow trap is that this software involves everyone’s privacy issues.

So, does the application of facial recognition technology inevitably infringe on personal privacy? How to define? In this regard, does China have any relevant laws to define?

It is understood that in the current laws of our country, only the expression of the scope of civil rights in Article 2 of the Tort Liability Act involves privacy rights. Among them, the definition of personal privacy content is rather vague and broad. In surveillance, it only stipulates that "surveillance of others' residences, installation of eavesdropping devices, private shooting of other people's private life scenes, and spying on other people's indoor situations" is an invasion of privacy rights.

Wang Dayu, a lawyer from Zhejiang Tongji Law Firm, stated that the commercial application of facial recognition technology, such as "white list of enterprise employees," is acquiesced by the employees' acquiescence; the application of shop personalization services in foreign countries also requires guest registration, that is, voluntary agreement. However, even if the domestic facial recognition technology application has not passed the consent of the guests, the service has brought convenience and intimacy to the guests. At the same time, the customer information has not been disclosed and there are no complaint cases. Therefore, although facial recognition has a large amount of personal database input and storage, it is difficult to define whether it is infringing.

“The key is how to use it.” Wang Dayu said that the facial recognition technology is currently not widely used in commercial and service applications. It is difficult to define infringement for several current applications, but it is recommended that businesses learn abroad. "Users first register" practices to ensure the user's right to know and consent.