SightSpeed
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SightSpeed provides a video and voice calling service for both Macs and PCs. The service allows people to make free video calls, free computer-to-computer voice calls, or calls to regular telephones.
Features
Video Calling
Video Calling allows SightSpeed members to see and hear other SightSpeed users via smooth video without delay.Video Mail
Video Mail allows SightSpeed members to create and send recorded content to anyone else with an email address.Multi-Party Video Conferencing
Multi-Party Video Conferencing allows you to conduct a video conference call with up to 4 people.Phone Out
Phone Out allows SightSpeed members to call regular telephone or cell phones for low national and international rates.Technology
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.
External links
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