hypermedia in the virtual project room toward open 3d spatial hypermedia l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Hypermedia in the Virtual Project Room - Toward Open 3D Spatial Hypermedia PowerPoint Presentation
Download Presentation
Hypermedia in the Virtual Project Room - Toward Open 3D Spatial Hypermedia

Loading in 2 Seconds...

play fullscreen
1 / 28

Hypermedia in the Virtual Project Room - Toward Open 3D Spatial Hypermedia - PowerPoint PPT Presentation


  • 321 Views
  • Uploaded on

Hypermedia in the Virtual Project Room - Toward Open 3D Spatial Hypermedia Preben Mogensen & Kaj Grønbæk InterMedia & Dept. of Computer Science University of Aarhus DK-8200 Aarhus C, Denmark Email:{pmogensen, kgronbak}@daimi.au.dk Outline Introduction Problem domain

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Hypermedia in the Virtual Project Room - Toward Open 3D Spatial Hypermedia' - libitha


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
hypermedia in the virtual project room toward open 3d spatial hypermedia

Hypermedia in the Virtual Project Room- Toward Open 3D Spatial Hypermedia

Preben Mogensen & Kaj Grønbæk

InterMedia & Dept. of Computer ScienceUniversity of AarhusDK-8200 Aarhus C, DenmarkEmail:{pmogensen, kgronbak}@daimi.au.dk

outline
Outline
  • Introduction
  • Problem domain
    • Collaboration support for architects and designers
  • Sources of inspiration
    • Spatial hypermedia and open hypermedia
    • Collaborative Virtual Environments
  • The Manufaktur prototype
    • Architecture
    • 3D spatial hypermedia
    • Collaboration support
  • Status and future work
toward virtual project rooms
Toward virtual project rooms
  • Projects in our lab focusing on support for designers/architects
    • spatial organization of heterogeneous materials
    • bridging between physical and virtual worlds
    • designing office and project room layout
    • distributed collaboration
  • Prototypical user groups
    • Industrial design: LEGO Futura, Design/Nord, etc.
    • Landscape/Townscape architects
  • The EU DESARTE Project
    • Participatory design with Landscape architects and architects
    • The original Manufaktur concept (PC version DirectX)
  • Distributed Multimedia (DMM) project
    • Distribution and collaboration architecture
    • Stereo-based Manufaktur (SGI version with OpenGL)
  • Collaboration with Aarhus School of Architecture
    • Interactive Room project, e.g. designing a video analysis room
studies of architects and designers work environments
Studies of architects' and designers' work environments
  • Designers and architectsworking on common projects are often physically co-located in large office spaces
    • physical project rooms
  • Important materials are constantly available in the room on bulletin boards, whiteboards, flipovers etc.
  • People often work in smaller groups around boards, computers and tables.
  • Need bridge between physical and computer based material
    • e.g paper and physical objects
  • Co-location stimulates collaboration
    • peripheral awareness about common tasks, implicit learning
    • seamless transition between individual and collaborative work
spatial hypermedia i n 2d
Spatial hypermedia in 2D
  • Example: The classical VIKI system (Marshall and Shipman)
  • CAOS - Open Collaborative Spatial Hypermedia
  • Implicit grouping of related items based on spatial proximity
a 2d desktop is insufficient to mimic physical organization of material
A 2D desktop is insufficient to mimic physical organization of material
  • 3D provides a better overview of materials
collaborative virtual environments cve
Collaborative Virtual Environments (CVE)
  • 3D collaborative environments
    • MASSIVE-1 and 2 from Nottingham
    • DIVE from SICS in Sweden
  • Both systems support
    • Tele-conferencing (audio,video, shared boards) in virtual worlds
    • Internet distribution
    • Collaboration between many users represented as avatars
    • Use aura concept to express proximity in virtual spaces
  • An aura is a specification of a 3D region in which a service or an avatar is visible or present
    • When an avatar’s aura intersect with that of another person they can see each other and start communicating
    • When an avatar’s aura intersect with that of a service (e.g. a conference table) the service become available
  • DIVE uses VRML and MASSIVE uses proprietary OpenGL based software
cve examples
CVE examples
  • DIVE(http://www.sics.se/dive/)
  • MASSIVE (http://www.crg.cs.nott.ac.uk/research/systems/)
traditional cve weaknesses
Traditional CVE Weaknesses
  • Focus on casual formation of meetings and conferences
  • Avatars are not well-suited for illustrating ongoing work
  • Documents are not taken serious - boils down to ”runic inscriptions”
  • No integration of real working tools, such as CAD and Word processors
manufaktur document centered cve
Manufaktur: Document Centered CVE
  • General infrastructure for document-centered CVE
  • Management of Workspaces, collections of material belonging to, e.g. task or project contexts
  • “Live” hypermedia-links to real documents
  • Distributed and collaborative architecture
  • Multi platform support (DirectX and OpenGL)
  • No human-like avatars - hand and camera only

Open HMServer

ObjectServer

CollaborationServer

manufaktur open hypermedia integration
Manufaktur Open Hypermedia Integration

ExternalApplications

ActiveX

Ole Linking

PersistentStore

Webvise Client

Webvise Server

SGI - 3DManufaktur

ActiveX

PC - 3DManufaktur

Clients onlocal machine

XML TCP/IP

TCP/IP

ODBC - TCP/IP

Object Server

NetworkedServers

CollaborationServer

RDB

Storage

manufaktur display architecture
Manufaktur display architecture

PC - 3DManufaktur

DirectX

COM

SGI - 3DManufaktur

Shared servers

Performer

OpenGL

Stereo projection

objects in manufaktur
Objects in Manufaktur
  • Document-objects
    • hot-links to office and CAD documents, updates are immediately visible
  • 3D objects
    • 3D Studio models, e.g. mobile phones, rollerskates, or landscapes can be loaded into the workspace
  • Implantations
    • objects and devices to custom ("furnish") the space
  • Groupings
    • explicitly or implicitly formed collections of objects that can be manipulated as a whole
  • ActiveEndpoints
    • ActiveX-based link anchors that can be placed on top of Document-objects (Microsoft platform only)
explicit and implicit grouping spatial hypermedia structuring
Explicit and Implicit grouping – spatial hypermedia structuring
  • Groups may be created manually
    • add to group
    • remove from group
  • Groups may be identified semi-automatically based on intersecting auras
    • invoking 3D spatial parsing on demand
    • as future work, we consider background incremental parsing
  • Groups can be stored and handled as hypermedia composite objects
activex based open hypermedia links
ActiveX-based open hypermedia links

Endpoint:

ID

Moniker

Endpoint:

ID

Moniker

Link

External Document

External Document

ActiveEndpoint (Anchor):

ID

ActiveEndpoint (Anchor):

ID

open issues
Open issues
  • Manufaktur as a "roomware" component
    • Projection devices: Smartboard, HoloBench andtables
    • Two-handed input, gesture interface, speech recognition
  • Understanding workspaces and workpractice
    • Metaphors for workspaces
    • Space topology and furnishing
  • Representing hypermedia structures in 3D
    • visualization of structures, natural integration in the common workspace
  • Collaboration support
    • tightly and loosely coupled collaboration
    • common view
    • common orientation
status and future work
Status and future work

Comprehensive prototype for Windows 2000

  • Single user version tested by users in work-like environments
    • Architects in Austria, Denmark and the UK
  • Integration of MS Windows version with SGI IRIX (HoloBench and similar)
  • Roomware development and physical room design
    • PC based client coupled with SGI based stereodisplay built into table
    • Wall projections of shared workspaces
    • Prototype room setup in June 2000
  • Test in distributed use setting: fall 2000 + 2001

Proof of concept prototype

In collaboration with School of Architecture in Aarhus

3d workbenches
3D workbenches
  • Projection based VR
    • immersion through active stereo vision
  • Collaboration
    • Between people at the same place
    • Between remotely separated people