ResearchChannel: Think Forward. Think Success. Michael Wellings, Director, Engineering San Diego.

ResearchChannel:ResearchChannel:Think Forward. Think Success.Think Forward. Think Success.

Michael Wellings, Director, EngineeringSan Diego

Think Forward. Think ResearchChannel

Topics of DiscussionTopics of Discussion

HD Network Update• iHDTV Applications

Current state of iHDTV systemPlanned Software Enhancements

• DemosSystem design

AudioVideo


iHDTV ExplainediHDTV Explained

• iHDTV Explained• iHD1500• iHD270• HD to the Desktop



• iHD1500• Uncompressed SMPTE 292M 4:2:2• Data rate total approx 1.5 gbps• Requires:

high-end HD capture cardsPCI Express PCsWindows XP (at the current time)



• iHD270 (first introduced aug 99)• Sony HDCamtm compression• SDTI data format 270mbps• AJA Xena I/O• Requires:

AJA Xena-HD capture cardsDual Processor P4Windows XP (at the current time)Sony HDCam Hardware encoder/decoder


• Sept 2005 - iGrid San Diego• Enhanced HD interactive - USA118: Global N-Way Uncompressed

Interactive Conferencing• Underwater research using HD from SS Thompson – USA119:

20,000 Terabits Under the Sea• Nov 2005 - SC05 Seattle

• Enhanced HD Interactive Conferencing/HD Storage and capture using SRB (Storage Resource Broker)

Scheduled DemosScheduled Demos


iGRID 2005 San DiegoiGRID 2005 San Diego

• USA118: Global N-Way Interactive HD• USA119: 20,000 Terabits under the sea


iGRID 05 – USA118iGRID 05 – USA118

• Sept 2005 - iGrid San Diego• Enhanced HD interactive - USA118: Global N-

Way Uncompressed Interactive Conferencing• Remote sites:

1. University of Washington - Seattle2. WIDE - Tokyo3. University of Wisconsin - Madison4. University of Michigan5. SURFnet - Amsterdam6. AARnet - Goldcoast



• Sept 2005 - iGrid San Diego• Remote site equipment:

2 RX iHD1500 Hosts (multicast from iGRID)1 TX iHD1500 Client

• Central site equipment:6 RX iHD1500 Clients2 TX iHD1500 Hosts (Multicast)Evertz HD Video Tile GeneratorMultichannel mix-minus audio system



• iHD500 – first demonstrated at SC 04• Real-time HD communication: Australia and

Seattle > Pittsburgh @ 1.5gbps each direction• Relatively High latency (1500ms RT)

500ms hardware/software one-way250ms network delay one-way


iGRID USA 118 Network DiagramiGRID USA 118 Network Diagram


iGRID USA 118iGRID USA 118



• Sept 2005 - iGrid San Diego• First ever live HD/ip from a ship at sea to

viewers on shore• Ku-Band equipment upgrade to SeaTel antenna• Careful RF engineering to design satellite Link-

Budget• Real-time MPEG-2 MP@HL encoding • Ip gateway• Satellite modem 20mbps


iGRID USA 119iGRID USA 119


iGRID USA 119 NetworkiGRID USA 119 Network


Software ChallengesSoftware Challenges

• iHD1500 Enhancements:• tile display generated in software• Audio mixing in software• Audio mix-minus in software• Video switching in software• Possible Linux implementation


• Open Source•First quarter 2006•Looking at various forms of

open source

•Call for participants

iHD-X: iHD-X: Open SourceOpen Source


HD ProjectsHD Projects

• Videoconferencing in HD @1.5mbps – iHD1500• Reduced latency using new hardware

• Blackmagic DecLink HD plus• AJA Video XENA-HS• Custom boards

• Possible hardware development and collaboration with RC Australian partners CSIRO and Intel

• HDV – requires some explanation


High Definition Video to the High Definition Video to the DesktopDesktop

• FORMATS• MPEG2 MP@HL

• WM9-HD@720p

• REAL10• H.264, ACV, MPEG-4

• HDV

• PLAYERS• VLC (subject to license

issues)• WM9/10

• RealPlayer• QuickTime

• VLC


iHD1500 applicationiHD1500 application

• SMPTE 292M/ip• 1.5gbps

• 1080-60i HD video with multiplexed audio• ResearchChannel partner Intel PCE-Express 3.4GHz Xeon

platforms• ResearchChannel partner AJA Video Systems supplied initial

round of Xena-HD capture boards


iHD1500 applicationiHD1500 application

Latency about 4 frames end to end plus network delay• 4 frames=133ms or ~ 1/7 sec• Network delay Australia>Philadelphia ~ 250ms• Satellite latency about 250ms per hop• H.323 devices about 250ms plus network delay• No significant delay in video equipment


iHD1500 DevelopmentiHD1500 Development

The FutureSoftware tile displaysoftware audio switching/mixingsoftware video switching


For More InformationFor More Information

• www.researchchannel.org

• inquires: [email protected]

Michael Wellings Director, [email protected]

ResearchChannel: Think Forward. Think Success. Michael Wellings, Director, Engineering San Diego.

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