TheVRContinuum:FromCAVEstoDigitalTV,HowVRandARwillchangeeveryday

lifeinthenextdecade

MarceloKnörichZuffo

UniversidadedeSãoPauloEscolaPolitécnica

LaboratóriodeSistemasIntegráveis

CampusPartySãoPaulo,26deJaneirode2010

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VirtualReality

Immersion

Interaction Imagination

Immersion

Realism

Interaction

VirtualReality

(Burdea,2003) (LopeseZuffo,2006)

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HistoricalPerspective-Immersion–  RupestrialPaintingincavesduringthePaleolithicage–  flaresandsmokecompletedtheartificialfeelingofimmersion.–  PicturesofimmersiveenvironmentsinthecaveofLascauxinFrance,magdalenianmen15.000B.C.

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HistoricalPerspective-Immersion•  PictorialAllegoryoftheCaveofPlato,427BC,TheRepublicBookVII

REALIDADEVIRTUAL

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HistoricalPerspective-Immersion•  Gothiccathedrals,XIIcenturytotheendoftheXVcentury.•  Candles,Vitrals,choirs,organs,incenseburningandpriesttalksintegratesafullyimmersive

REALIDADEVIRTUAL

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HistoricalPerspective-Immersion•  TVEvolutioninthePast85Years•  FamilyOriented•  Interactivityislimited

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Wherewewillstop?•  108InchesLCDTVSet

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Wherewewillstop?•  ProjectionsupontheBanespaBuildinginSãoPauloCity

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HistoricalPerspective–InteractiveImmersion•  Firstimmersiveandinteractiveelectronicsystems

Ultimate Display (Sutherland MIT, 1967)

Sketchpad (Sutherland MIT,1963)

Sensorama (MortonHeilig,1962)

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HistoricalPerspective-Immersion

1970 Desenho Assistido por

Computador

1980 Desenho e Design Assistido

por Computador

1990 Fotorealismo e

Simulação Física (Virtualização)

REALIDADEVIRTUAL

•  EvolutionofComputerGraphicsanditsapplications

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HistoricalPerspective–TheCave•  ThefirstCAVE(CaveAutomaticVirtualEnvironment)wasestablishedattheUniversityofIllinois,Chicago,byresearchersfromThomasFanti,DanielSandinandCarolinaCruz-Neirain1991(Cruz-Neira,1993)

•  Motivation–  ScientificVisualization

•  FirstFullyImmersiveVR

PictureofTheFirstCave1991SIACG2009

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Microelectronicsadvancesinpast30years

MaterialsusedforIntegratedCircuitManufacturing(Source:Intel)

MOSTransistorSize2001-2011(Source:Intel)SIACG2009

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DigitalLightProcessing•  DLPTechnology(DigitalLightProcessing)wasinventedin1987byDr.LarryHornbeckatTexasInstruments

•  TheDLPprojectionsystemsaredevicesMEMSs(Micro-Electro-MechanicalSystems)calledDMD(DigitalMicromirrorDevice).

ChipDMD DMDSurface DMDinOperationfonte:Texas

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AevoluçãodasCPUseGPUs•  GPUGraphicsProcessingUnit•  CPUComputerProcessingUnit

Evoluçãodosmicroprocessadores(CPUs) EvoluçãodasCPUseGPUs

REALIDADEVIRTUAL

Lei de Moore

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CPUxGPU:Desempenho–  GPU:Visualização

•  Ex.:PlacaGráficaATIX800XT(R420):–  520MHz*16pipes*4wide*1flop/inst*1inst/cycle–  66.5GFlops(109operaçõesdepontoflutuante/segundo)

–  CPU:Simulação•  Ex.:MicroprocessadorPentiumP4,3GHz–  6GFlops

PlacaDualCPU2CoreDualx4GPUFotodoChipdaGPUNVIDIAG6800

emprocessode65µmSIACG2009

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CAVERNADigital•  5Screens•  1Mpixelperscreen•  Pixelsize3mmx3mm•  600lumens/projetor•  total3.000lumens•  FrameRate60Hz

GeneralView GeneralView User

UpperView

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CAVERNADigitalVRcluster2001VRcluster2003VRcluster2006

Internet2FAPESPKyatera

CentraldeControle

Rastreador

ProjetoresSIACG2009

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VRClustersEvolutionatUSP(,SIGGRAPH2002)

2003-2aGeração:• 8nós• dualPentiumXeon3.0GHz• 2GBRAM• placadevideoNVidiaQuadroFX3000G-256MB-AGP8x• 2HDs80SCSI• 2saídasdevídeopornó

2006–3aGeração:• 8nós• dualOpterondualCore3.0GHz• 8GBRAM• duasplacasdevideoNVidiaQuadroFX4400(SLI)-PCIExpressx16dual• 2HDsSATA160GB• 4saídasdevídeopornó

2001–1aGeração:• 6nós• dualPentiumXeon1.76GHz• 1GBRAM• placadevideoWildcat7210(256MB),AGPPRO,• 2HDs80GBSCSI• 1saídadevídeopornó

(IEEEVR2003)

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VRClustersonaChipCONSIDERAÇÕESFINAIS

• 8–64CPUS• 8-64GPUS• 1GBUnifiedcache• 50-250Bgates• IntegratedEnergyManagement

• IntegratedMemoryManagement

• DualCPU-GPUcoretobeannouncedbyAMDin2009

MultipleGPUsandCPUsIntegratedinthesamedie

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VolumeVisualizationforanatomicalanalysis

RealTimeVisibleHumanTManalysisSIACG2009

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Molecularvisualization

polipeptidicchain

Useratthecave Diffusion Hemolisina-tree

Potassiumchanel

ElectrofisiologylearningFAPESP

Kyatera-TidiaSoftware:Jinx

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CulturalHeritage

CollegeSquare(1stSãoPauloCivilizedLocation)

BaruelBuilding

reconstructionofSãoPaulo1911

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TheDigitalTVTransitioninBrazil•  Itstartedin2003

•  Inourmodel,theUniversityhadakeyrolediscussingandproposinginovations.

•  DigitalTV=EmbeddingaComputeronaTV

•  SoTVswillbemuschmoreinteractiveandimmersiveinthefollowngyears.

MarceloKnörichZuffo Depto.deEngenhariadeSistemasEletrônicosEscolaPolitécnicadaUSP

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AnalogTerrestrialTVinBrazil•  Majorsourceofinformationandentertainment•  Universaldistribution•  2,3TVsets/house•  Near100MillionTVsets•  7hoursaday

Source: IBGE-PNAD/2003

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AnalogScenario

Transmissão

Analógica

Produção

Digital

Emissora de TV Aberta Analógica

Recepção

Analógica

Distribuição

Analógico Digital

Cidadão

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DigitalScenario

Transmissão

Digital

Produção

Digital

Emissora de TV Digital

Distribuição

Digital

Cidadão

Recepção

Digital

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The4901ACT•  GovernmentACT4901,26November2003–  TheBrazilianDigitalTVSystemisestablished

•  Arguments–  WideAccesstopopulation–  Interoperable–  Mobileandportable–  Needtoconsiderregionaldifferences–  UsabilityandAccessibility–  SocialImplications•  Topromotethedigitalinclusionandsocialinclusion

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ResearchNetworkin2004and2005•  Between2004and2005wecreatedthelargestresearchnetworkeverinBrazil:–  22Consortia–  Near100R&DGroups–  Near1.500Researchersinvolved–  Everythingwasdebated,detailedanddemonstratedatUSPCampusin9December2005.

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SomeSnapshotsfromthatperiod

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HugePressCoverage

Someprototypes

Alotofcollaboration

The5820ACT•  2006wasanelectionyear•  Sothingsmovedfast:-Theconclusionsare: Wewillwriteanstandardconsidering–  IMultiformat:HDTV(High-def),SDTV(Standard-Def)andLDTV(Low-def)–  II Multiprograming- multipleprogramsinthesamechannel–  III - Interactivity(middlewareandconnectivity).

–  Comerciallaunchin3Dezember2007–  Forumcreation:Industry/University/Broadcast/Goverment

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TheSBTVDStandard

Figura: Normas que definem o Sistema Brasileiro de TV Digital

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N01TransmissionSystem

Serviço Modulação Taxamínima(kbps) Taxamáxima(kbps) LDTV(1segmento) QPSK 280,85 595,76 SDTV(3segmentos) 16-QAM 1685,13 3574,56 HDTV(9segmentos) 64-QAM 7583,13 16085,52

  BST-OFDM modulation   Channel of 6 MHz   13 segments of 428.57 kHz for

information + 1 divided into two bands of custody

  3 modes of operation with different spacing between carriers

  Displacement of 1 / 7 MHz for the top carriers

Service Configuration upon a DTV Channel

BST-COFDM Modulation no SBTVD

Multiprogramming•  Severalprogramsinthesamechannel–  Around19Mbits/second/channel–  Wedodatamultiplexing–  70channelsmeans1.4Tbits/second–  Near540Tbytescanbebroadcastonasingleday

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N01–TransmissionSystem

Figura: Esquema de transmissão no SBTVD

Figura: Faixa de freqüências da TV Digital no Brasil

Multiformat•  1080lines(HD)•  720lines(HD)•  480lines(SD)•  240lines(LD)

1080 linhas

HDTV 16:9

720linhas

EDTV 16:9

480 linhas

SDTV 4:3

240 linhas LDTV

4:3

interactivity•  From2009willviewerscaninteractwiththeTVviaremotecontrol:–  Localinteractivity:noconnectivity•  Stationsendsdatathatcanbenavigated

–  Fullinteractivitywithintermittentconnectivity•  Usersendsthebroadcastshortmessagesviamobileorfixed

–  Fullinteractivitywithpermanentconnectivity•  UserconnectedpermanentlytothestationviaabroadbandInternet

DTVReceiver

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NavigationandVotingbuttons

EthernetAccessRFInputUSBPort

AnalogOutput

HDMI Interface

256Mbytes32BitCPU4USBs1080iOpenGLEthernet

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FutureperspectivesInteractiveelectronicswillsupport–  Moreimmersiveness–  Moreinteraction–  Moremodularandflexibe–  Morecomplexandintegrated–  Moresimpleandaccessible–  Morecheaper–  Andmoreandmorepopular

•  ConvergingDTVandVR:interactive3DTVandmakethataccessibleforall

•  BasicallyTVSetswillfollownowtheMOORELAW!

immersion

Realism

Interaction

VirtualReality

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ImmersiveandInteractive3DTV•  More simple and accessible

•  Low cost display and interactive devices •  Adoption of HDTV 1080i on the Brazilian DTV system

3DTVHDTV1080pLDCDisplayPhillips–LenticularSansungActiveStereoMitshubishiActiveStereo

Auto-stereoscopicdisplayUsinglenticularlenses

InteractiveRemoteControl

Visualcluster

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•  Clusteringprojectorsforultrarealisticimmersivespaces•  “Casualprojectoralocation

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VisualClusterDemos

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GoogleEarth CisneBranco

RiodeJaneiro ViewPortResizing

3DandPanoramicVideoDisplay

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Virtual Rio HD3D

Virtual Rio 240o

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Receptor de TVDigital Acessível •  Parceria com a Secretaria do Estado dos Direitos

da Pessoa com Deficiência (SEDPcD)

•  Projeto visa universalizar o SBTVD pela inclusão dos brasileiros com deficiência

Obrigado!

mkzuffo@lsi.usp.br

MarceloKnörichZuffo Depto.deEngenhariadeSistemasEletrônicosEscolaPolitécnicadaUSP

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