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Virtual advertising insertion

L-VIS displays a virtual TV screen during the FOX broadcast of Super Bowl XXXIII, showing the Denver Broncos’ defensive line-up. (Image: Wikipedia)

TV viewers of sporting and news events are familiar with digitally inserted on-screen advertising—for example, ads that appear behind home plate during baseball games. The capability is built on vision-based, match-moving technology that inserts images and video into broadcast signals with the correct scale, orientation, and motion relative to the photographed objects in the scene.

The technology was introduced in the 1990s by Princeton Electronic Billboard, a Sarnoff Corporation spin-off company founded by Brown Williams and Roy Rosser. (Princeton Electronic Billboard later became PVI Virtual Media Services; Sarnoff Corporation is now part of SRI.) Sarnoff licensed intellectual property to PVI that it had developed over years of U.S. government-sponsored R&D in vision-based pattern recognition and tracking technology.

PVI developed the technology to meet TV broadcasters’ requirements and dubbed it L-VIS (Live Video Insertion System).

The company was acquired as a wholly owned subsidiary of Cablevision Systems Corporation before being acquired by ESPN in 2010.

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