Two-step ODETLAP and induced terrain for improved geographical data reconstruction

Authors
Lau, Tsz-Yam
ORCID
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Other Contributors
Franklin, W. Randolph
Krishnamoorthy, M. S.
Zimmie, T. F.
Wozny, M. J. (Michael J.)
Issue Date
2012-12
Keywords
Computer science
Degree
PhD
Terms of Use
This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
Full Citation
Abstract
Data from other geographical layers can also be used to refine the induced terrain. For example, known water flow directions can be used to correct river heights which may have been reconstructed incorrectly with height samples alone. This improves the accuracy by 1-4 percentage points. Meanwhile, known non-river locations can be protected from being river locations in the reconnection results by raising their heights to a level unreachable by any water. While effective in boosting accuracy by around 5 percentage points, this scheme also makes it simple to switch among river derivation schemes with different execution speeds and hydrographical consistency constraints.
Description
December 2012
School of Science
Department
Dept. of Computer Science
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection
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