«Here, the brain «knows» that position estimates are unreliable in the periphery, so it relies more on other visual cues, which, in this case, is the motion; the spin of the ball,» said Kwon, who led the study while serving as a research associate in the Center for Visual Science at the University of Rochester. (sciencedaily.com)
Despite their hunches, researchers have been unable to prove that the visual system measures distance with angles because they couldn't separate angular declination from other visual cues. (sciencemag.org)
Instead, the system uses other visual cues and watches for continuity between cameras — you're never not in sight of a lens, so it's easy for the system to see a shopper move from one camera to another and make the connection. (techcrunch.com)