Communications of the ACM
Video Content Search Gets a Boost
FXPAL president Larry Rowe
Radaris.com
Fuji Xerox Palo Alto Laboratory (FXPAL) researchers have developed TalkMiner, an online video search tool designed to make it easier to search the content of video lectures by automatically transcribing words used in the lecturer's visual aids.
"It gives you a good shot at finding something that wasn't mentioned in the title or abstract but is buried deep inside the video," says FXPAL's Larry Rowe.
TalkMiner skims the videos to find the speakers' presentation slides. TalkMiner analyzes the footage once per second for distinguishable signs of a presentation slide and then captures the slide image and accounts for skewed angles, using optical character recognition to detect the words on the slides.
TalkMiner's search engine currently holds about 15,000 videos from institutions such as Stanford University, the University of California, Berkeley, and TED.
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