Stanford CIS

Recognize this? A spectrum of biometric identification

By Omer Tene on

My dog recognizes me. From across a dog park full of people throwing balls and calling their pups, Spot never fails. She uses the poor eyesight, good hearing and excellent sense of smell she shares with all dogs. Playing in the park, she interacts with other dogs, communicating through smell and body language. But her loyalty always sees her home to me. Other dogs are, of course, just as dedicated to their owners.

While Spot can always identify me, I'm not worried about her infringing my privacy. She'll never disclose private information about me, my habits, whereabouts or friends. And while she can identify me in a group of 10 or 20 people, I wouldn't expect her to pick me out from a group of a million. This observation about Spot's limited identification capability offers a useful lens for understanding how facial recognition technology, when properly constrained, need not threaten privacy.

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Published in: Publication , Privacy