video technologies overview for isc may 5, 2004 kent percival manager, ccs development
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Video TechnologiesVideo Technologies
Overview for ISCOverview for ISCMay 5, 2004May 5, 2004
Kent PercivalKent PercivalManager, CCS DevelopmentManager, CCS Development
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 22
Video TechnologiesVideo Technologies
AgendaAgenda Multimedia – the new? MediumMultimedia – the new? Medium Video ConferencingVideo Conferencing
• Overview; Who’s doing what?Overview; Who’s doing what?• Common InfrastructureCommon Infrastructure
Video StreamingVideo Streaming • Overview; Who’s doing what?Overview; Who’s doing what?• Common InfrastructureCommon Infrastructure
Institutional Direction SettingInstitutional Direction Setting
Multimedia CommunicationMultimedia Communication
The new? medium forThe new? medium for
Collaboration,Collaboration,
LearningLearning
Video ConferencingVideo Conferencing
“ “ VC ”VC ”
““Video Telephone” Video Telephone”
for collaborators, teachers ??for collaborators, teachers ??
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 55
VC TechnologyVC Technology
Real-timeReal-time, , two-waytwo-way, audio and video, audio and video• ““video telephone”video telephone”• Small group collaborationSmall group collaboration
Maturing technologyMaturing technology Around for 15+ years - from broadcast TVAround for 15+ years - from broadcast TV Historically expensive Historically expensive
• Limited general use; only long distance applicationLimited general use; only long distance application
… … the internet is changing this rapidly!the internet is changing this rapidly!
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 66
VC HistoryVC History
Closed Broadcast TV – special circuitsClosed Broadcast TV – special circuits Telephone links – low qualityTelephone links – low quality
H.320H.320 - video over Digital phone lines - video over Digital phone lines Dedicated circuits (bandwidth)Dedicated circuits (bandwidth) ISDN Access: x6 lines (768Kbps) ~$350/moISDN Access: x6 lines (768Kbps) ~$350/mo User pays for long distance time User pays for long distance time
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 77
VC & the internetVC & the internet
H.323H.323 - video over packet (IP) networks - video over packet (IP) networks Limitations:Limitations:
• Packetization overhead – delaysPacketization overhead – delays• ““available” bandwidth – quality impact if congestedavailable” bandwidth – quality impact if congested
AdvantagesAdvantages• Ubiquitous(?) connectivityUbiquitous(?) connectivity• Cost: … just part of the data trafficCost: … just part of the data traffic
Supported by all commercial VC productSupported by all commercial VC product
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 88
VC ApplicationsVC Applications
High QualityHigh Quality Appliance SystemAppliance System
PolycomPolycom; ; TandbergTandberg Room installation - costsRoom installation - costs Small/medium groupsSmall/medium groups Quality RequiredQuality Required
Higher ResolutionHigher Resolution Faster ActionFaster Action Near TV qualityNear TV quality
Higher QOS on networkHigher QOS on network
New high res appsNew high res appse.g. view into lab (OR) …e.g. view into lab (OR) …
Low CostLow Cost PC-based PC-based
Windows MessengerWindows Messenger Office location - no cost!Office location - no cost! Single Participant per endSingle Participant per end Accept less qualityAccept less quality
Low resolutionLow resolution Low bandwidthLow bandwidth
.. But cameras and network .. But cameras and network bandwidth are improvingbandwidth are improving
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 99
Who’s using VC?Who’s using VC? Room-based:Room-based:
GWPC - main Link; mini LinkGWPC - main Link; mini Link Day Hall – multi purpose roomDay Hall – multi purpose room Rosanski Classroom (102?)Rosanski Classroom (102?) OVC Learning Commons ( w/ Sask; UQAM; UPEI)OVC Learning Commons ( w/ Sask; UQAM; UPEI) PlannedPlanned
• R & D: MaRS Landing; OVC Research CollaborationR & D: MaRS Landing; OVC Research Collaboration• Teaching:Teaching:
OAC Dean’s OfficeOAC Dean’s Office• Remote Colleges; affiliations: Lakehead, Beunos AriesRemote Colleges; affiliations: Lakehead, Beunos Aries
Guelph-HumberGuelph-Humber
Office-based:Office-based: ? ? ? ? ? ? ? ?
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1010
VC – Multipoint Control UnitVC – Multipoint Control Unit
Accepts 4 site images
- Determines which to broadcast
H.320 toISDNPhone lines
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1111
VC - DirectoryVC - Directory
How to set up a VC communication???How to set up a VC communication??? VC from a PC – hundreds of users!VC from a PC – hundreds of users! Directory services infrastructureDirectory services infrastructure
Security, manageability, integration issuesSecurity, manageability, integration issues H.245H.245 directory for communication endpoints directory for communication endpoints
PersonPhoneFAXPC w/ VCPC w/ IM…
CampusDirectory
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1212
VC : VC : Common InfrastructureCommon Infrastructure
Multipoint Control Unit serverMultipoint Control Unit server Access control; SecurityAccess control; Security DirectoryDirectory IntegrationIntegration
New Phone Service (H.320 / H.323 / SIP …)New Phone Service (H.320 / H.323 / SIP …)
Desktop solutions - the right toolboxDesktop solutions - the right toolbox
Smart Classroom TechnologySmart Classroom Technology
Video StreamingVideo Streaming
“ “ VS ”VS ”
TV on the internetTV on the internet
? ? ? ?? ? ? ?
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1414
VS TechnologyVS Technology
One-wayOne-way delivery of delivery of storedstored video content video content Not file transfer - displayed as it is being deliveredNot file transfer - displayed as it is being delivered
DeliveryDelivery On-demand On-demand Server Server one user one user Scheduled Broadcast Server Scheduled Broadcast Server many users many users
IntegrationIntegration Standalone Streaming ServersStandalone Streaming Servers Integration with eLearning, Portal, Collaboration toolsIntegration with eLearning, Portal, Collaboration tools
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1515
VS TechnologyVS Technology
Non-real-time allows more processingNon-real-time allows more processing
Higher compressionHigher compression• better quality at lower bandwidthbetter quality at lower bandwidth
Planned ProductionPlanned Production• Scripting; editing; multiple sources Scripting; editing; multiple sources
Integrated application deliveryIntegrated application delivery• Linked with other content on web sitesLinked with other content on web sites• Managed w/ Content Management and eLearning systemsManaged w/ Content Management and eLearning systems
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1616
VS TechnologyVS Technology
Performance ServersPerformance Servers Microsoft Media ServerMicrosoft Media Server Real NetworksReal Networks Cisco IP/TV (used by OVC CANARIE)Cisco IP/TV (used by OVC CANARIE)
Capture Server - encoding / compressionCapture Server - encoding / compression Delivery Server – high bandwidthDelivery Server – high bandwidth
Integrated clients - included on desktopsIntegrated clients - included on desktops MS Windows Media PlayerMS Windows Media Player RealOne PlayerRealOne Player Apple QuicktimeApple Quicktime
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1717
Who’s using Video StreamingWho’s using Video Streaming OVC TeleVetMedicine (w/ LifeLearn)OVC TeleVetMedicine (w/ LifeLearn)
w/ other vet colleges; professional educationw/ other vet colleges; professional education Open Learning - Distance EducationOpen Learning - Distance Education Canadian Shakespeare Adaptations Project (CASP)Canadian Shakespeare Adaptations Project (CASP)
ProposedProposed OACOAC
• Regional Colleges; Forestry program: Guelph / LakeheadRegional Colleges; Forestry program: Guelph / Lakehead• Crop Science in the winterCrop Science in the winter• Guest Lecture EventsGuest Lecture Events
SharcNetSharcNet• High technology training for graduate studentsHigh technology training for graduate students
Broadcast/ reBroadcast University EventsBroadcast/ reBroadcast University Events• ConvocationConvocation
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1818
VS - Storage and BandwidthVS - Storage and Bandwidth
Assume 1 Mbps video streamAssume 1 Mbps video stream Course (35 lectures of 50 min): ~100 GBCourse (35 lectures of 50 min): ~100 GB Edit, add additional resources: ~ 50 GBEdit, add additional resources: ~ 50 GB
• Need content management, cataloguing, …Need content management, cataloguing, …• Institutional Repository for sharingInstitutional Repository for sharing
Assume 50 concurrent viewersAssume 50 concurrent viewers On-demand – different streams: 50 MbpsOn-demand – different streams: 50 Mbps Broadcast over Broadcast over multicastmulticast network: 2 Mbps network: 2 Mbps
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 1919
VS - Content ManagementVS - Content Management
Many, many files Many, many files needs meta-data for information management needs meta-data for information management
and searchable accessand searchable access Hierachical storageHierachical storage
• long term protected storage – archiveslong term protected storage – archives• Revision controlRevision control
Intellectual Property (IP) RightsIntellectual Property (IP) Rights Access control; access recordAccess control; access record
Integration with applicationIntegration with application e. g. eLearning; portalse. g. eLearning; portals
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 2020
VS: VS: Common InfrastructureCommon Infrastructure
Content ManagementContent Management Not multiple small systems by others?Not multiple small systems by others? Integration with applications: portal, elearningIntegration with applications: portal, elearning
Storage Systems / Content ManagementStorage Systems / Content Management High performance content deliveryHigh performance content delivery Long term archive serviceLong term archive service
Performance ServersPerformance Servers Network ServicesNetwork Services
QOS; Multicast; delivery to colleges; QOS; Multicast; delivery to colleges;
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 2121
Other Multimedia AppsOther Multimedia Apps
DICOMDICOM• Digital Imaging and Communication in Medicine Digital Imaging and Communication in Medicine
PACSPACS• Picture Archiving and Communications SystemPicture Archiving and Communications System
VTH RadiologyVTH Radiology• Xray, ultrasound, CTXray, ultrasound, CT
• Resource for Vet Colleges portal & eLearningResource for Vet Colleges portal & eLearning
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 2222
Institutional Directions ??Institutional Directions ??
IntegrationIntegration
Standards based approachStandards based approach plan for the futureplan for the future
Key University Information SystemsKey University Information Systems eLearning; Portal; Smart ClassroomseLearning; Portal; Smart Classrooms Institutional Repository; Storage & Backup systemsInstitutional Repository; Storage & Backup systems Universal Access – Network; DesktopsUniversal Access – Network; Desktops
2004 05 052004 05 05 Video Technologies (for ISC)Video Technologies (for ISC) 2323
Institutional Directions ??Institutional Directions ??
Cost Effective Technology InfrastructureCost Effective Technology Infrastructure Shared approach Shared approach
Shared common Shared common infrastructureinfrastructure Network, Servers, Directory, Network, Servers, Directory, Storage, ApplicationsStorage, Applications
Shared application developmentShared application development
Efficient central systems managementEfficient central systems management
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