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Goals for this Meeting

Goals for this Meeting.

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Goals for this Meeting

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  1. Goals for this Meeting • Determine community interest in the establishment of a R&D program aimed at providing to the research community source(s) of advanced display components (projectors, lens, screens, interfaces, controllers, imaging devices etc.) aimed at furthering scalable display environments • Outline the technical requirements for such systems • Determine the feasibility of working with vendors, universities and labs and the federal funding agencies to advance such a program • economics • logistics • Initially focus on Projectors and related technologies for “multipanel” displays

  2. Roadmap for Advanced Display Technologies • Our initial focus is on multipanel (structured and unstructured geometries) • Murals and Tiled Displays • CAVEs and related devices • Structured and Unstructured Room based VR/multiprojector • Spatially immersive display environments • Cost points that could permit wide adoption • Driven by the needs of scientific visualization, advanced collaboration, and information visualization, virtual reality applications • Stereo • Colorimetry and Calibration • Extreme Off Axis Projection • Blending and Support for Tiling

  3. Programmatics • Multiagency Support • ASCI Pathforward Support • Private Sector Support • Consortium Approach

  4. The Open Projector Concept

  5. Open Projector Concepts • Create a community definition of a laboratory grade projector • Sort of like an optical table or testbed • Plug and Play • Wide variety of components that can be swapped in and out • High-quality for experimentation • Suitable for benchmarking studying • Sort of like a professional Camera with inter-changeable • Lens • Backs • Viewfinders • etc. • Modern optical instrument

  6. Open Projector Specification Might Address • Physical Image Resolution and Compression/Expansion • High Contrast and High Absolute Dynamic Range • High Luminance Output • Projection Geometry and Configuration Options • Color Convergence Properties • Colorimetry and Color Balance Properties • Illumination Field Properties • Optical Path Models and Properties • Support for High Quality Illumination Sources • Packaging and Mounting, Fine Physical Adjustments • Serviceability/Modularity (MTTR) • Stability (Thermal, Temporal, Colorimetry) • Known Reliability (MTBF) • Standard Digital Computer Interfaces and Network Interfaces • Implementation of Standard Control and Calibration Parameters • External and Internal Control Software APIs

  7. Possible Features for Advanced Projectors • Internal Graphics Interfaces (non-Pixel protocols) • Stereo Support and High-Frequency Inputs • Internal or Externally Integrated Calibration Cameras • Integrated Wireless/Fiber Networking Interfaces • Integrated Codex for Compressed Streams/Stills • Non-Uniform Resolution/Non-Raster Imaging • Support for Multiresolution Display Systems • Non-Uniform or Irregular Imaging Geometry • Off Axis Projection Capability • Projector Array/Cluster Awareness • Distributed Frame Buffer Support • Non-Uniform Tiling Support • Built in Calibration Agents and APIs • Internal Edge Blending Logic/Hardware

  8. The Modular Professional Projector CCD Triplet CCD Triplet Image Fiddler CCD Triplet Calibration Control Combiner andDichroic Pick-off Blending Mask Interchangable Lens LCD or DLP Triplet LCD or DLP Triplet Digital Preconditioning LCD or DLP Triplet Gamma LUT Alpha Mask Splitter Control Blending Mask Control Zoom / Focus Control Light Source USB Firewire Network Calibration Control Power Control

  9. Active Mural  Beyond the MegaPixel • Related Work: • Stanford's Info Mural (Hanrahan, et. al.) • Princeton’s Giant Display Wall (Li, et. al.) • MIT AI Lab’s Big Inexpensive Display (Knight et. al.) • Minnesota’s Great Wall of Power (Woodward et. al.) • EVL’s Infinity Wall (DeFanti, et. al.) • UIUC’s SmartSpaces Wall (Reed et. al.) • UNC’s Office of the Future (Fuchs et. al.)

  10. ActiveMural, a Tiled Display Wall • Argonne, Princeton and UIUC Collaboration • 8’ x 16’ display wall • Jenmar Visual Systems BlackScreen™ technology, > 10000 lumens • 8 LCD  15 DLP  24 DLP • 8-20 MegaPixels • SGI and Linux drivers • VR and ActiveSpace UI

  11. ActiveMural: Neutron Star Surface X-ray Burst

  12. The Active Mural Lab with Access Grid Tech Ambient mic (ceiling mount) Presenter mic Feedback view surface Audience mic Presenter camera Audience camera Technician headset

  13. ActiveMural, Mural: Price Performance • Leverages COTS Technology • Commodity Projectors Cost ~ $0.006/pixel • High End Projectors Cost ~ $0.015/pixel • Platform Independent • SGI, NT, Linux Multiple Configurations • Complete Linux Based System < $100K • Screen and Frame ~10K • Projectors ~36K • Computers W/ Graphics ~40K • Collaboration With Princeton and UIUC • Coordinating Software Efforts • Projector Mount Fabrication • Virtual Framebuffer Software • Diagnostics and Analysis Software Sub mm pixels Image blending

  14. The Mural Portable Six Projector Tiled Display for High-Resolution Visualization

  15. Projector Alignment/ Image Blending

  16. Research Directions for ActiveMural, Mural • Continued development and refinement of ActiveMural • Characterize and improve image quality (blending, filters, etc.) • Improve calibration, reconfigurability and tuning • Software environment (e.g. virtual frame buffers) • Investigate use of ActiveMural as multiresolution testbed • Human factors studies and comparisons with CAVE and Idesks • Development of smaller versions of AM (Mural) that can can be more widely deployed • Six panel version under construction • demonstrated at SC99 • StationOne prototype planning • Office friendly version of Mural

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