Unified Communications Featured Article
March 10, 2009
Hypermirror System Uses Haivision's Low-Latency MAKO-HD Codec
The hai1020 network video system and MAKO-HD H.264 codec from HaiVision Network Video reportedly are being implemented in HyperMirror, according to HaiVision (News - Alert). Helping students and teachers to meet virtually, HyperMirror, an integrated solution, brings distance-learning participants into a single virtual room.
The hai1000 series network video system from the customers with the latest H.264/MPEG-4 AVC compression technology for standard definition and high definition HD video. According to HaiVision, this product offers true to life video communication experience even at low bandwidth. The MAKO-HD is suited for the demands of telepresence, medical, and interactive broadcast applications and supports up to 1080p high definition with 70 milliseconds of end to end latency.
To create a live composite image that incorporates participants from various locations, HyperMirror uses the HaiVision encoding system. The technology was developed at Japan’s Osaka University’s graduate school of human sciences.
“Conventional conferencing systems establish both physical and psychological distance between participants” said Takanori Maesako, the Osaka University professor behind the HyperMirror solution. “To make this system most effective, we required an encoding system with exceptionally low latency, as well as a smooth, realistic picture. We found that among the systems we evaluated, HaiVision provided the lowest bit rate for the degree of picture quality HyperMirror requires.”
With HyperMirror, a composite on-screen image is created which appears as though it has been shot by a single video camera. Participants can watch their interactions with others from a third-person perspective. To make this communications model possible, the HaiVision encoder is integrated with an HD camera, a monitor, the HyperMirror unit, a chroma key mixer, and a sound mixer at each site. Already, to facilitate teaching, demonstrations, and the exchange of ideas among students and instructors at multiple sites, HyperMirror has been installed in numerous education settings.
In November, The Church Without Walls, as TMCnet reported, selected HaiVision Systems to “build a greater sense of shared community among its three campuses in Houston.” The church is using hai1000 multistream encoder/decoder systems to deliver high-quality low-latency live video between campuses and “thus tie together the experiences of members attending services” at three separate sites.
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Raju Shanbhag is a contributing editor for TMCnet. To read more of Raju’s articles, please visit his columnist page.
Edited by Michael Dinan
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