video technologies overview for isc may 5, 2004 kent percival manager, ccs development

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 ??


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!


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


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


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


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: ? ? ? ? ? ? ? ?


VC – Multipoint Control UnitVC – Multipoint Control Unit

Accepts 4 site images

- Determines which to broadcast

H.320 toISDNPhone lines


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


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

? ? ? ?? ? ? ?


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



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



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


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


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


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


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;


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


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


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

video technologies overview for isc may 5, 2004 kent percival manager, ccs development

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