
EPSRC
Visualization and Virtual Environments Community Club (VVECC)
- Rutherford Appleton Laboratory |
Augmenting the
Real World: |
Augmented
Reality and Wearable Computing
|

A one day conference of the EPSRC
Visualization and Virtual Environments Community Club dealing with augmenting the real world
through the use of augmented reality and wearable
computing was held at Loughborough University on
18 April 2000. The aim of the conference was the
exploration of the intersection between real and computer maintained
worlds. This was an extremely successful conference and brought
together some of the leading practitioners from around the world.
Two highlights of the event included a keynote address by Mark
Billinghurst (Human Interface Technology Laboratory, University of
Washington, USA) and a final summing up session by Professor Fred
Brooks (Department of Computer Science, University of North
Carolina, USA).
Roy Kalawsky - Conference
Chair
Augmented Reality
Keynote
Address - Research Directions in Wearable Computers - Mark
Billinghurst Human
Interface Technology Laboratory, University of Washington,
Seattle
As computers become increasingly
invisible the field of wearable computing has emerged as an
important new computing paradigm. In this talk we briefly overview
lessons learnt from the early years of wearable computers and then
review several promising future research directions. These are based
on three of the dominant characteristics of wearable computers;
mobility, augmented reality and context sensitive computing. We
describe fundamental research that has been conducted in each of
these areas, review the lessons learnt and outline some design
principles that can be applied to the next generation of wearable
computers. Examples will be presented from research groups at the
HIT Lab, British Telecom, The MIT Media Lab, and Sony Computer
Science Labs among others.
PDF Presentation
available
Seeing into
the Future: The potential of Augmented Reality for Advanced Embedded
Training Systems - Alex Stedmon Kate Cook,
Alison Young, Amanda O'Shea† & Lucy McLaughlin - DERA
The aim of this research was to
identify any benefits from the use of real-time training feedback,
and to investigate the utility of Augmented Reality (AR) technology
for providing this feedback. Two main research questions have formed
the basis of this research: · first, does the provision of online
feedback lead to training benefits for task performance in a complex
military decision-making task? Second, can this online feedback be
provided via AR? AR can be described as a head mounted, see through
display, providing visual augmentation to the real world. The real
world could be terrain (as in the case of Head Mounted Displays in
the cockpit), but for military training applications would more
likely be existing computer displays and hardware. The advantage of
using AR is that additional feedback information could be provided
in the trainee's line of sight, overlaid upon the primary task
display.
PDF
Presentation available
Experimental
Research into Human Cognitive Processing in an Augmented Reality
Environment - Kevin Hill & Roy Kalawsky, Advanced VR Research Centre,
Loughborough University
AR technology is still in its infancy
and consequently research into the cognitive human factors issues
surrounding the use of AR systems is severely limited. To date there
have been no formal guidelines to support the application of AR
technology. The research being carried out at the Advanced Virtual
Reality Research Centre at Loughborough University is an
investigation of the cognitive ergonomics of AR technology and
information processing issues that may arise through its use,
particularly when information is presented via AR and overlaid upon
one or more primary display surfaces such as a visual display unit.
Initial research investigated comprehension and short term recall of
information and the results demonstrated that AR is as effective as
traditional display formats for presentation of information. Later
research demonstrated that line of sight cueing information results
in lower reports of subjective workload, and that re-accommodation
between the AR display and the primary display need not affect
reaction times. This research illustrates that an AR display used in
a non-spatial registered mode can be of benefit to a number of
application areas including supporting tasks undertaken on single or
multiple display units. The potential of AR to provide additional
information to users when they are dealing with a situation away
from their primary display (e.g. team working or multiple display
environments) is extremely effective in terms of reaction times and
low stress levels, and can be seen as a major benefit in situations
where modifications to existing hardware are impractical or too
expensive.
PDF Presentation available
Making
Light Work in Augmented Environments - Eric
Tatham Open University & Advanced VR Research Centre,
Loughborough University
Some potential
applications of augmented reality, such as architectural
visualisation, will depend, in part, on convincing and 'seamless'
visual integration of real and virtual worlds. Not only does
achieving this depend on resolving the common issues of temporal and
spatial registration but also on reconciling real and virtual
lighting models in a satisfactory manner. The paper described the
problems involved in accomplishing this, and discusses possible
approaches to their resolution, including a new proposal for
inferring plausible models of global illumination.
PDF Presentation available
Associated movie file (6.7Mb)
Wearable
Computing
Augmented Art
Galleries - Chris Baber, Birmingham
University
There have been recent developments in
museum education which seek to engage visitors in an active
experience of exhibits. In museums, this can be achieved through
working models and demonstrations, but how can one achieve similar
goals in art galleries? In the gallery, paintings are static, 2D
images, often with little accompanying information. Attempts to
either add more information, with plaques on the walls, or to tamper
with the paintings will clearly not be acceptable to the curators.
We have been looking at methods for presenting information to
visitors using different media. The goal is to produce
context-sensitive information devices, e.g., by tracking visitors in
a gallery space,and providing appropriate information for each
painting. The notion of appropriateness is related to the visitor
profile and to their current tour of the gallery. This talk will
describe some of the techniques used. Our work is also concerned
with the Cognitive Engineering issues associated with augmenting
reality and with wearing computers, and the talk will consider user
requirements and responses to the design ideas presented. The aim of
the presentation is to present a Cognitive Engineering perspective
on augmented reality and wearable computing, through the example of
an augmented art gallery.
PDF Presentation available
A User
Interface Framework for Wearable Computing -
Neill J. Newman and Adrian F. Clark,
University of Essex
Anyone who has used a wearable
computer in anger will realize that user interfaces based around the
desktop mataphor do not work. Indeed, the majority of people
researching wearables believe that they will eventually have a
"multi-modal" interface, one capable of accepting speech as easily
as typed input and mouse movements, and which can generate aural
output as well as visual. The authors have developed Sulawesi, a
multi-modal user interface framework. It is written in Java and has
been proven on Linux and Windows. Sulawesi accommodates verbal and
typed inputs and features a simple natural-language parser so that
it can infer commands from reasonably colloquial English. Output can
be rendered aurally or visually, with the decision of the medium to
use being chosen by the user or, in some circumstances, by Sulawesi
itself. This presentation described the principal features of
Sulawesi, highlights some of the shortcomings of existing
interaction devices, and outlines some applications of the
framework.
PDF Presentation available
An augmented
reality tour guide for archaeological sites -
David Johnston and Adrian
Clark
Archaeological sites are an important
part of Britain's heritage. However, tours around them often
disappoint visitors because they are unable to visualize how the
site must have appeared; and, of course, building physical
reconstructions in situ is not permitted. The authors are developing
an augmented reality tour guide application for such sites which
uses a wearable computer with GPS positioning capability, driving a
head-mounted display with orientation sensors. This system is able
to position the wearer at the correct place in a 3D model of the
site as it is likely to have appeared in the past, greatly improving
the experience. This presentation described the hardware and
software systems, including the model-generation phase.
HTML Presentation available
In Field
Computer for Human Factors based Evaluations - Roy Kalawsky, Advanced VR Research Centre,
Loughborough University
Loughborough
University have developed an in-field computer (iFC) as a
development platform to support detailed human factors studies on
next generation wearable computing systems. Research being
undertaken in the AR area is being mapped ono the iFC to study human
performance at a cognitive level. The prototyping system is very
flexible and ideaaly suited to complex human factors studies. This
presentation described the approach being taken in the development
of the second generation iFC.
PDF Presentation available
Wearable
Computing: Bristol Fashion - Cliff Randell,
Bristol University
The Bristol Wearable Computing
Initiative was established in 1997 as a joint collaboration beween
Hewlett-Packard and the University of Bristol with the aim of
exploring potential applications of computing devices which are worn
as unconciously as clothing or jewellery. Initial work with our
CyberJacket, incorporating a CardPC, GPS, speech recognition and a
wirelessly linked display, and our Locomedia software, which
attached media objects to contexts such as location, revealed
limitations both in current technology and our design. A revised
design making use of event driven software, the internet, a
hand-held browser and pingers, has resulted in a stable platform
capable of being used to quickly prototype applications and then for
testing them in the field. The talk describes some of the problems
posed by wearable computing, and our solutions. Applications that we
have prototyped are also outlined with discussions on their
effectiveness.
PDF Presentation available
Associated movie
file (3.8Mb)
Final Summing Up Session
- Professor Fred Brooks -
University of North Carolina

Professor
Fred Brooks very kindly agreed to summarise the whole conference
with respect to the international scene. The audio of Professor
Brooks extemporaneous remarks is available in MP3 format.
MP3 audio of
Professor Fred Brooks NB nearly 7Mb
Send questions and comments to r.s.kalawsky@lboro.ac.uk
Back to AVRRC Home Page
Last updated 7 May 2000
Top
|