Face recognition has become more and more common, but when asked how anyone can avoid it, some people may say that wearing a mask can be achieved. According to foreign media reports, researchers are now further developing face recognition technology, even if people's faces are covered to identify someone, which may mean that people who are anonymous in the public will be more difficult than ever.
In a study published this week, researchers can train a neural network to identify people whose faces are covered by using deep learning and data sets of face images with various "disguise" faces. Sociologist Zeynep Tufekci shared the findings on Twitter, pointing out that this technology could be a tool for oppression. At present, the accuracy of this face recognition method is far below the industry standard.
Patrik Huber, a researcher at the University of Surrey, who specializes in face tracking and analysis, said: "The technique mentioned in this paper is not particularly convincing." He pointed out that the system does not actually disguise the face and face photos. Or the portraits are matched, but instead are identified using a "facial key" (such as the distance between the eyes, nose, lips, etc.).
Although this technology still has drawbacks, some face recognition technologies have made rapid progress. For example, Facebook has trained a neural network that can identify people based on characteristics such as hair and body type. The University of Basel in Switzerland is also developing a system for identifying maskers, recreating a 3D model of the face of a target person in a way that can be seen.
Privacy advocacy groups say that even if these systems are flawed, they may still be accepted by law enforcement. For example, last month, London police used real-time facial recognition to scan people who participated in the Notting Hill Carnival. Before the event, they assembled a "customized data set" of more than 500 photos and used the surveillance camera to capture people who could make trouble. According to a report by Liberty, a human rights organization, the police used the system to successfully identify a suspicious individual.
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