At a time when the Internet of Things era is approaching, the creation of a smart city becomes even more important. In the concept of a smart city, the most important thing is safety. Whether it is urban crime or shop theft, it is the thing that everyone wants to avoid. In response to this demand, Japan NEC developed a remote line of sight estimation technology, and exhibited relevant technology in the 2017 Taipei Information Month; this technology can also be applied to marketing strategies to understand what customers are paying attention to through the camera. And strengthen the promotion of related products.
In the past, the way of eye sight detection was based on the use of a special device equipped with an infrared lamp and a camera. Since the infrared light was used to illuminate the human eye, the line of sight was known from the direction of light reflection, so that high-speed precision was not achieved. NEC's long-distance line-of-sight estimation technology is based on the company's past face recognition technology core "multiple comparison face detection method", allowing imported agencies, stores, etc., only need to use a general camera, real-time and Accurately detect the direction of the line of sight of people 10 meters away.
It is understood that NEC's multiple comparison face detection method is to collect the necessary information when the line of sight is detected (including the eye details such as the eye, the eyes, the pupil, etc. to be correctly locked), even if the imported field is With a normal camera, accurate line of sight can also be detected, and the error value is only within 5 degrees of the upper and lower left and right of the line of sight. NEC believes that the demand for smart cities is rising, in part because people hope to reduce the security of the city; and the long-distance line of sight estimation technology is to determine the current thinking of specific people through people's sight.
For example, if a person premeditated a crime, he must pay considerable attention to the direction of the camera and the location of the equipment. Therefore, when the suspicious person’s line of sight is erratic and he always pays attention to the position of the camera, the system will notify the relevant personnel to pay more attention to this. Human behavior. In addition, this technology is also quite suitable for introduction into retail stores. Through the line of sight detection technology, merchants will be able to understand the customers in the supermarkets and other customers, and the customers who look at the contents of the electronic kanban, from the sight of these customers. Speculative products and content are speculated, so NEC also believes that such marketing purposes are also the direction of practical use in the future.
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