Fair polyline networks for constrained smoothing of digital terrain elevation data.

Abstract:

We present a framework for smoothing grid-like digital terrain elevation data, which achieves fair shape by means of minimizing an energy functional. The minimization is performed under the side-condition of hard constraints which come from available horizontal and vertical accuracy bounds in the standard elevation specification. We introduce the framework and demonstrate the suitability of this method for the tasks of accuracy-constrained smoothing, feature-preserving smoothing, and filling of data voids.

Bibtex:

@article{hofer-2005-fpn,
	author = "M. Hofer and G. Sapiro and J. Wallner",
	title = "Fair polyline networks for constrained
		smoothing of digital terrain elevation data",
	journal = "IEEE Trans. Geosc. Remote Sensing",
	year = "2006",
	url = "http://dmg.tuwien.ac.at/wallner/dted.pdf",
	volume = 44,
	number = "10/2",
	pages = "2983-2990",
	doi = "10.1109/TGRS.2006.875451",

}