On2 Technologies Receives Patent for Video Encoding Methods
31 March 2009 - 11:30PM
PR Newswire (US)
Technique Improves Video Compression and Encoding Methods in On2
VP7, VP8 CLIFTON PARK, N.Y., March 31 /PRNewswire-FirstCall/ -- On2
Technologies (NYSE Amex: ONT), a leader in video compression
solutions, announced today that it has been granted patent number
7,499,492 for methods that increase the compressibility of digital
video segments through better intraframe prediction. The methods in
the patent were originally developed for use in On2's VP7 and VP8
encoders, but may be integrated into any image or video compression
algorithm that involves intraframe predictive encoding. One of the
technologies described in the patent uses medium- to long-distance
first order prediction as an alternative to directly copying the
predicted pixels from pixels immediately above and/or to the left
of the predicted block. In one application, a rate and direction of
change or slope is calculated using pixels to the left, above and
above-left of the pixel to be predicted; this slope is then used to
predict the current pixel's intensity. The technique works well for
blocks involving consistent gradation in pixel intensities. The
mode is the second most frequently chosen by the encoder in an RD
sense on intra frames after a mode approximates a DC coefficient
prediction. "This patent represents one of the many advances that
differentiate our codecs from others," said Yaowu Xu, Vice
President of Codec Development at On2 Technologies. "Our new
technology provides a substantial boost to our video encoding on
keyframes and new image data that can account for upwards of five
percent quality gain." The full text of the patent can be viewed
online by visiting http://patft.uspto.gov/ and searching for patent
#7499492. About On2 Technologies On2 (NYSE Amex: ONT) creates
advanced video compression technologies that power the video in
today's leading desktop and mobile applications and devices. On2
customers include Adobe, Skype, Nokia, Infineon, Sun Microsystems,
Mediatek, Sony, Brightcove, and Move Networks. On2 Technologies is
headquartered in Clifton Park, NY USA. For more information visit
http://www.on2.com/. Trademarks mentioned in this release are the
property of their respective owners. DATASOURCE: On2 Technologies
CONTACT: Chris Pfaff, On2 Technologies, Inc., +1-973-509-6565, Web
Site: http://www.on2.com/
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