This is often known as “face identification.”įace matching can also be used to figure out whether two faceprints are from the same face, without necessarily knowing whom that face belongs to. If the unknown faceprint is similar enough to any of the known faceprints, the system returns a potential match. taken by a security camera) and comparing it against a database of “known” faceprints (e.g. This is often done by taking a faceprint from a new image (e.g. The most widely deployed class of face recognition is often called “face matching.” It tries to match two or more faceprints to determine if they are the same person.Īny face recognition system used for “tracking”, “clustering”, or “verification” of an unknown person can easily be used for “identification”įace matching can be used to link photographs of unknown people to their real identities. It can also try to guess other characteristics (like sex and emotion) about the individual from the faceprint. A computer can compare the faceprint from two separate images to try and determine whether they’re the same person.
This is often called a “faceprint.”įaceprints, rather than raw face images, can be used for all of the troubling tasks described below. The raw image data is processed into a smaller set of numbers that summarize the differentiating features of a face. Next, the system extracts features from each image of a face. However, there is significant racial disparity in many face detection technologies. In itself, face detection is not necessarily harmful to user privacy. This is often called “face detection.” This is a prerequisite for all of the more sophisticated forms of face recognition we discuss below. What Is Face Recognition?Īt the most basic level, face recognition technology takes images of human faces and tries to extract information about the people in them.įirst, the image is automatically processed to identify what is and is not a face. This post explores many of the various kinds of face recognition, and explains why all must be addressed by laws.
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All forms of face recognition are a menace to privacy, free speech, and racial justice. In response, some governments and corporations are claiming that these laws should only apply to some forms of face recognition, such as face identification, and not to others, such as face clustering. Across the country, communities are pushing back with laws that restrain this dangerous technology. Governments and corporations are tracking how we go about our lives with a unique marker that most of us cannot hide or change: our own faces.
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