Fair polyline networks for constrained smoothing of digital terrain elevation data

Michael Hofer; Guillermo Sapiro; Johannes Wallner

doi:10.1109/TGRS.2006.875451

Fair polyline networks for constrained smoothing of digital terrain elevation data

Michael Hofer, Guillermo Sapiro, Johannes Wallner

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

In this paper, a framework for smoothing gridlike digital terrain elevation data, which achieves a fair shape bymeans of minimizing an energy functional, is presented. The minimization is performed under the side condition of hard constraints, which comes from available horizontal and vertical accuracy bounds in the standard elevation specification. In this paper, the framework is introduced, and the suitability of this method for the tasks of accuracy-constrained smoothing, feature-preserving smoothing, and filling of data voids is demonstrated.

Original language	English (US)
Pages (from-to)	2983-2990
Number of pages	8
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	44
Issue number	10
DOIs	https://doi.org/10.1109/TGRS.2006.875451
State	Published - 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
General Earth and Planetary Sciences

Keywords

Digital terrain elevation data (DTED)
Fair polyline networks
Guaranteed error bounds
Surface smoothing
Terrain compression
Terrain visualization
Topography preserving

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10.1109/TGRS.2006.875451

Cite this

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AU - Sapiro, Guillermo

AU - Wallner, Johannes

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AB - In this paper, a framework for smoothing gridlike digital terrain elevation data, which achieves a fair shape bymeans of minimizing an energy functional, is presented. The minimization is performed under the side condition of hard constraints, which comes from available horizontal and vertical accuracy bounds in the standard elevation specification. In this paper, the framework is introduced, and the suitability of this method for the tasks of accuracy-constrained smoothing, feature-preserving smoothing, and filling of data voids is demonstrated.

KW - Digital terrain elevation data (DTED)

KW - Fair polyline networks

KW - Guaranteed error bounds

KW - Surface smoothing

KW - Terrain compression

KW - Terrain visualization

KW - Topography preserving

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JO - IEEE Transactions on Geoscience and Remote Sensing

JF - IEEE Transactions on Geoscience and Remote Sensing

IS - 10

ER -

Fair polyline networks for constrained smoothing of digital terrain elevation data

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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