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PVI Virtual Media Services
PVI Virtual Media Services is one of the companies behind the virtual yellow-down-line shown on television broadcasts of American football games in the USA and Canada.〔() "Hut, hut, HD: CBS signs on for one HD NFL telecast a week while ABC begins new MNF season in HD" Ken Kerschbaumer, Broadcasting & Cable. 2003.〕 Founded in 1990 as Princeton Electronic Billboard,〔() RESPONSIBLE PARTY/BROWN WILLIAMS; Placing Products, Digitally, on TV, by Kathleen Carroll in the NY Times, October 14, 2001〕 PVI Virtual Media Services was a wholly owned subsidiary of Cablevision Systems Corporation (NYSE: CVC)〔() "BRIEFING: BUSINESS; VIDEO IMAGE COMPANY" by John Holl. ''New York Times'', February 11, 2001〕 with a research and operations facility in Lawrenceville, NJ before being acquired by ESPN〔() ESPN Buys PVI Intellectual Property From Cablevision〕 in December, 2010.
==Services==
The company pioneered the vision-based, match moving technology that allows the virtual insertion of images and video into broadcast video signals in real time, i.e., while the program is being broadcast. In addition to the virtual yellow down line, the technology has been used to place virtual advertising in broadcasts of soccer,〔() "Princeton Video Image Endorses FIFA Subcommittee Recommendation to Allow Virtual Advertising During Televised Soccer Games." Business Wire, 1999〕 baseball,〔Dickson, Glen. "S.F. Giants adopt electronic billboards; SportsChannel, KTVU to air virtual ads" Broadcasting & Cable. 1996〕〔"PVI and Major League Baseball International Team up Again for Virtual Advertising in 2009 World Baseball Classic." Business Wire. 2009〕 ice hockey games〔() "PVI enters strategic alliance with digital media platform" Sports Marketing. 2001〕 and, more controversially, on some TV news shows, including the CBS 2000 New Year's Eve show when an NBC logo behind Dan Rather in Times Square, NY, was covered over with a virtual CBS logo.〔() "On CBS News, Some of What You See Isn't There," Alex Kuczynski, ''New York Times'', January 12, 2000〕〔() CBS Is Divided Over the Use Of False Images In Broadcasts by Bill Carter, ''New York Times'', January 13, 2000〕
Originally marketed as L-VIS (Live Video Insertion System), their systems are now called inVU systems to emphasize their use of pattern recognition of images, and that motion sensors are not required on the broadcast cameras that the system is working with.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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