InterView andVislab

Steve Smith

InterView and Vislab

Steve Smith

Vislab, School of ITUniversity of Sydney

November 17, 2005

InterView andVislab

Steve Smith

InterView: Enable differing view perception

The problem: In modern surveillance monitoring situationsviewing space is at a premium:

InterView andVislab

Steve Smith

Possible solution for one case

Common case:

I Many or most situations will have multiple observers

I By multiplexing the output we can make more efficientuse of screen real-estate.

Technology trade-offs:

I Modern PC has an excess of video band-width(60-120Hz is the norm)

I Video capture devices are historically slower (24Hz)

I We can trade-off video output bandwidth for expandedreal-estate

I We are not hardware people, we want to use commodityequipment

InterView andVislab

Steve Smith

Possible solution (continued)

I A multiplexing solution already exists: Stereo viewing

I LCD Shutter systems trade-off framerate for a richerviewing experience

I Frames from stereo viewpoints are multiplexed onalternate frames, and the glasses de-multiplex to theleft and right eyes

I Can we modify the setup so that frames are multiplexedbetween two viewers, not eyes ...

InterView andVislab

Steve Smith

Our solution: Modified NuVision Stereo System

A modified commodity stereo system:

I Standard PC

I nVidia Quadro4 video-card

I Modified NuVision stereo LCD-shutter glasses

A Demo (It’s easier to see than explain...)

InterView andVislab

Steve Smith

Other Vislab Activities

Vislab is a Research, Development and Teaching center atthe University of Sydney School of IT. We work inCollaboration, Visualisation and HPC.

InterView andVislab

Steve Smith

AccessGrid

AccessGrid is a visual collaboration system, likeVideo-Conferencing but flexible and extensible. Vislab is amajor contributor to the project:

I Shared applications, shared desktop

I Low-level system development

I Next generation middleware (XMPP)

InterView andVislab

Steve Smith

Vicat project

Flexible, interactive multiscreen technology for remotecollaboration

InterView andVislab

Steve Smith

LazyScan: 3D Scanning on the cheap

Goal: Develop a 3D scanning technology from commodityhardware, preferably found around the home. Makesextensive use of Computer-Vision techniques.

InterView andVislab

Steve Smith

Honours and TSP Students

We offer projects to some of the brightest students at Usyd:

I Honours projects (Lumino, Geosom).

I “Talented Student Program”: Only available to the top1% of students

I Students produce papers for international conferences

I We’re looking for industry partners for joint supervision.

InterView andVislab

Steve Smith

Discussion