LifeSize – Video-Conferencing in HiDef

9 thoughts on “LifeSize – Video-Conferencing in HiDef”

  1. from their site – “LifeSize systems are based on the latest H.264 standard”.

    The ways to get their resolution over H.264 is to either reduce the update rate, resoluition, or assume that we are only doing talking heads – static backgrounds and moving heads.

    Until you see their video quality at one mb/s, I wouldn’t buy the hype. Even professional H.264 encoders at NTSC resolutions output pretty bad video at 1 mb/s – I doubt they do better.

  2. Om –

    Was the video talking heads? A largely static background with just some slight body movement compresses really well when compared to a more normal video stream. I am just having problems believing that they have made big advances in encoding technology versus the big researchers, particularly since they are trying to hire a ‘video team lead’ to handle H.264.

  3. nah – DrDebug spends some days looking at crappy H.264 and VC-1 video at the claimed data rates. If they have magic technology for better compression, video conferencing is probably the least profitable avenue for capitalizing on it. Their system is only going to useful for board-room to board-room setups given that you really want to have their gear on both ends to get the nice picture.

    Om can check his logs to see where I work, and it isn’t a videoconferencing company. I worked a long time ago on iVisit (, and I worked for a failed FTTH company, SandStream Communications, during the boom. This experience has taught me to be skeptical of claims where I don’t control the source video for testing.

This site uses Akismet to reduce spam. Learn how your comment data is processed.