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UBC Theses and Dissertations
Simplifying terrain models and measuring terrain model accuracy Andrews, David Scott
Abstract
We describe a set of TIN simplification methods that enable the use of the triangulation hierarchy introduced by Kirkpatrick [Kir83] and modified by de Berg and Dobrindt [dBD95a, dBD95b]. This triangulation hierarchy can be used to form a terrain model combining areas with varying levels of detail. One variant of the delete simplification method formed simplifications with accuracy close to the greedy method. We also investigated different variables that can be used to measure the accuracy of our simplified terrain models. Although the use of derivative statistics did not significantly alter our evaluation of the performance of our simplification methods, we recommend that any future comparisons should be aware of these alternative variables of surface characterization.
Item Metadata
Title |
Simplifying terrain models and measuring terrain model accuracy
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1996
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Description |
We describe a set of TIN simplification methods that enable the use of the
triangulation hierarchy introduced by Kirkpatrick [Kir83] and modified by de Berg
and Dobrindt [dBD95a, dBD95b]. This triangulation hierarchy can be used to form
a terrain model combining areas with varying levels of detail. One variant of the
delete simplification method formed simplifications with accuracy close to the greedy
method.
We also investigated different variables that can be used to measure the
accuracy of our simplified terrain models. Although the use of derivative statistics
did not significantly alter our evaluation of the performance of our simplification
methods, we recommend that any future comparisons should be aware of these
alternative variables of surface characterization.
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Extent |
4978511 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-02-09
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0051185
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1996-05
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.