ISMAR 2002 Demo Notes

Everything related to the ISMAR 2002 Demo Augmented Classroom.

Overview of the setup. To the left the table environment and to the right the projection screen.

Hardware

• two mobile kits with 2 gloves and wrist / belt mounted touch pad
  • Siemens Celsius H - Wireless LAN - Luftgeist Wireless Lan
  • Dell Precision
• table plus camera holder
• table tracker host
  • Dell Inspiron 8000
• firewire tracking camera
• projection screen
  • 5 Stock - Erich kauft eine für uns sollte diese woche kommen
• projector
  • Infocus von Erich
• mount for screen and camera
• mount for projector
  • gar nix
  • hohes regal
  • wand mount
  • for ort kaufen
• vga cable
• projection server
  • Desktop - Valentin
• firewire tracking camera
• network hub 100Mbit
  • Techniker ? - Gerhard
• WLAN base station
  • Labor
• 3 network cables
• power plugs and extensions, need at least 7 outlets
• Lamps to improve tracking
• 2 firewire hubs for extending fw cable to cameras
  • Valentin Firewire strom daher brauchen wir höstens extension hub
  • Dell Inspiron Firewire hub mit stromversorgung
• 4 6ft firewire cables (test to get working ones !) batteries for firewire cameras and glasstrons

Software

Mobile kits running Studierstube 3.0. They use one locale "table" for everything. This locale is shared. They deploy some additional viewer application that moves windows around and does additional tasks.

Session manager is running on the tracker server. In addition to that an OpenTracker server is also running on tracker server for the third firewire camera installed above the table. The mobile kits and the tracker server form a shared tracking system.

Projection server runs Studierstube 3.0 and opentracker for overhead camera tracking markers in front of screens.

Sharing application data between the table and the screen environment :

sharing via DIV

• sharing of application into a "screen" locale. is window moving working then ? might require some hacking
• sharing same locale and simply have different tracking coordinates. might require some activation migration, but that sounds ok.
• could solve the window moving problem with activation migration !

saving snapshots to a local file system

• retrieving the snapshots at the server end
• more failsafe and allows independent operation of projection server
  

I would like to set up both versions to learn how both work under real circumstances. The simpler one should probably be used for the actual demo.

In any case some special window mover / app manager will run in the system and move windows around to attach them to the markers and also do reseting of applications or save / load them from shared file system etc.

Applications

Construct3D. Depends on Hannes finishing the port to Studierstube 3.0. If that fails we can run the old Construct3D in an old shared instance on the table environment. But we will get no interaction with the screen environment and also might have to switch between Studierstube versions to run other applications.

fingerfarben. How is the multiuser status ? Should at least work with Studierstube 3.0. Flo should check that. With this it should be possible to move markers between table and screen environment.

demo apps. Only animal is ported. the dedicated window mover / app manager could use any application. so we could just run different sample apps as well.

memory. special case needs preparation for content. lots of markers and nice 3d models to make it interesting. no animations currently possible because no VRML nodes in OSOIV.

Task

Storyboard

Users will wear a mobile AR kit and be able to take a marker to see an application. Each marker is corresponding to one application.

If such a marker is tracked in front of the application screen it will appear, otherwise it will move to some invisible location !

ToDo

• app manager - needed now ?
• check calibration of tools
• check calibration of hmds