SightSpeed
From Free net encyclopedia
Template:Infobox Software2 SightSpeed is a free Internet video conference software that uses a proprietary artificial intelligence algorithm to remove unimportant information from images. It claims to be able to transmit 30 frame/s live video over a typical ADSL connection with little time lag.
Using a unique codec based on pixelwise compression, instead of mpeg-type, frame-based compression, SightSpeed essentially only transfers the pixels that experience a change of state on screen. If the background does not change much, it will not be updated very frequently, except for where change does occur.
This means that the moving objects experience fluid, 30 fps video. The efficicent codec also reduces the amount of lag to a level that is imperceptible to the human brain.
SightSpeed's video codec was originally developed at Cornell University's Discover Lab.