Researchers say they can have computers examine body camera video footage and accurately identify a person wearing a body-mounted device in about four seconds, according to a recently released paper . The authors of the study had their software look at biometric characteristics like height, stride length, and walking speed to find the identity of the person shooting the footage. As they point out, this could have both positive and negative implications for civilians, law enforcement, and military personnel if they’re using body-mounted cameras. (It’s important to note that this research paper, Egocentric Video Biometrics , was posted to the arXiv repository . As such, it’s not considered a final, peer-reviewed work.) Using static, mounted cameras to match a person’s height and gait is a relatively common and well-researched vector for narrowing down the identity of people caught in videos. The authors said that, to get an accurate read of the biometric data of the person wearing the body cam, the footage has to be from a camera secured to one point on a person’s body (handheld cameras don’t work), and it has to have at least four seconds of video of the camera-wearer walking. Despite these restrictions, the two researchers from The Hebrew University in Jerusalem noted that once the necessary information had been gathered, “the identity of the user can be determined quite reliably from a few seconds of video.” “This is like a fingerprint,” Shmuel Peleg, one of the paper’s authors, told The Verge. “In order to find the person you have to have their fingerprint beforehand. But we can compare two people and say whether two videos were shot by the same person or not.” Read 4 remaining paragraphs | Comments
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4 seconds of body cam video can reveal a biometric fingerprint, study says
Molly McHugh writes: What better way to sell telepresence technologies than having the store employees themselves appear via robot? At the Beam store in Palo Alto, Calif., no human salespeople physically appear, only robots. Users appear on the 17-inch display and control the robot via keyboard, mouse, or Xbox controller. Beam can roll as fast as two miles per hour. People behind the screen control the Beam through their computers, and two wide-angle cameras attached to the top of the bot lets them see everything happening around the store. It’s a bit eerie, watching floating heads tool around and talk to people in this video, and the customers’ react to the Beam with confusion and wonder. Read more of this story at Slashdot. 
