"CHIPS: Xuuk's eye-counting technology mimics Google"

Xuuk Inc. has unveiled an eye-counting video camera that could enable the highly successful Google business model to be extended online to brick-and-mortar advertisers. With Eyebox, brick-and-mortar advertisers can determine which billboards or products people are looking at in mall corridors or on store shelves, and count them in the same manner that Google counts clicks for online ads. The Eyebox consists of a palm-sized video camera surrounded by infrared light-emitting diodes and a Universal Serial Bus interface. Software running on an attached computer can determine whether someone is looking at the camera by recognizing the "red eye" spot, which only appears when a viewer is looking directly at the camera.
Text: http://www.eetimes.com/showArticle.jhtml?articleID=199500223