Accuracy Analysis of DEM Based on Coons Surface

Yao Ge Wang; Peng Yuan Wang

doi:10.4028/www.scientific.net/AMM.65.214

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 65Accuracy Analysis of DEM Based on Coons Surface

Accuracy Analysis of DEM Based on Coons Surface

Abstract:

Interpolation is the core problem of Digital Elevation Model (DEM). The Coons DEM model is better than bilinear interpolation and moving surface fitting. It is constructed by grid boundary curve, the curve interpolates by some adjoining grid points. Its spatial pattern of error is random in global area, there is no significant global spatial autocorrelation, but it is an increasing trend along with the terrain average gradient increases.There is significant local spatial autocorrelation, the spatial pattern of error converges strongly in local areas.

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Periodical:

Applied Mechanics and Materials (Volume 65)

Pages:

214-217

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.65.214

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Online since:

June 2011

Authors:

Yao Ge Wang, Peng Yuan Wang

Keywords:

Coons Surface DEM, Error, Spatial Structure of Error

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References

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