Hinged, pseudo-grid triangulation method for long, near-linear cliff analyses Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/44558f141

This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Society of Civil Engineers and can be found at:  http://ascelibrary.org/toc/jsued2/current.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • LIDAR scanners can rapidly collect high resolution, cm-level accurate point clouds representing topography, suitable for change detection if scans are repeated over time. To perform meaningful volumetric change analyses, point clouds are commonly triangulated to produce continuous, digital terrain models (DTMs). However, DTM creation methods generally require a fixed look direction tied to a specific plane, which results in less than ideal triangulations when modeling areas with largely varying topography, such as coastal cliffs and beaches. Furthermore, for accurate volumetric change analysis, surfaces must be free of intersecting triangles, have consistent facet normal orientations, and be free of data gaps (holes). The methodology presented herein produces continuous surfaces without inconsistent normals and minimizes holes and self intersections. The few intersecting triangles and holes may be quickly repaired using existing algorithms and were shown to be substantially less abundant compared to common surfacing techniques. Finally, the data structuring of this technique significantly shortens processing time, reduces memory requirements, and enables efficient and interactive visualization through both sub-sampling at varying scales and optimized view frustum calculations.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Olsen, M., Kuester, F., and Johnstone, E. (2013). ”Hinged, Pseudo-Grid Triangulation Method for Long, Near-Linear Cliff Analyses.” Journal of Surveying Engineering, 139(2), 105–109.
Academic Affiliation
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2013-06-24T21:03:02Z No. of bitstreams: 1 OlsenMichaelCivilConstructionEngineeringHingedPseudoGrid.pdf: 905208 bytes, checksum: b6380a0965944ea4aa911b8c52f3f032 (MD5)
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2013-06-24T21:52:14Z (GMT) No. of bitstreams: 1 OlsenMichaelCivilConstructionEngineeringHingedPseudoGrid.pdf: 905208 bytes, checksum: b6380a0965944ea4aa911b8c52f3f032 (MD5)
  • description.provenance : Made available in DSpace on 2013-06-24T21:52:14Z (GMT). No. of bitstreams: 1 OlsenMichaelCivilConstructionEngineeringHingedPseudoGrid.pdf: 905208 bytes, checksum: b6380a0965944ea4aa911b8c52f3f032 (MD5) Previous issue date: 2013-05

Relationships

In Administrative Set:
Last modified: 07/13/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items