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Spatial Reasoning for Robots:
A Qualitative Approach
by
Alan Frank Blackwell
A thesis
submitted to the Victoria University of Wellington
in fulfilment of the
requirements for the degree of
Master of Science
in Computer Science.
Victoria University of Wellington
October 1988
Abstract
This thesis presents a new approach to the problem of shape representation for
high level robot reasoning tasks. Techniques from the field of qualitative
physics are combined with current methods for solid modelling to develop a
qualitative representation of two dimensional shape and position. The
qualitative spatial representation has been used to solve simple spatial
reasoning tasks. The results of this investigation are applicable both to the
field of robotics, where they provide a new approach to programming and
control, and to the field of qualitative physics, which has been hampered by
a lack of general purpose spatial reasoning techniques.
Acknowledgements
Thanks to Peter Andreae, my supervisor, for his fund of ideas and his
energetic criticism. Also to PROGENI, for the use of office facilities, and
for extended periods of study leave. Thanks for advice, assistance, and
friendship to Mark, Karen, Duncan, Bernd, Paul, Craig, Julie, Jonathan,
Matthew, Andrew, Mike, David, Evan, Philip, Alvin, Alex, Clifton and Steve.
Thanks to my musical friends for a life beyond study, especially Harry and
Gillian. Lastly, thanks to Helen. This project would never have commenced,
progressed, or been completed without her encouragement and support.
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Alan Blackwell
2000-11-17