Gully detection with Inverse Morphological Reconstruction Algorithm [data] (doi:10.11588/data/PXDR4M)

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Gully detection with Inverse Morphological Reconstruction Algorithm [data]

doi:10.11588/data/PXDR4M

heiDATA

2023-12-13

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Vallejo Orti, Miguel; Negussie, Kaleb; Corral, Eva; Höfle, Bernhard; Bubenzer, Olaf, 2023, "Gully detection with Inverse Morphological Reconstruction Algorithm [data]", https://doi.org/10.11588/data/PXDR4M, heiDATA, V1

Gully detection with Inverse Morphological Reconstruction Algorithm [data]

doi:10.11588/data/PXDR4M

Vallejo Orti, Miguel (Heidelberg University, Institute of Geography)

Negussie, Kaleb (Namibia University of Science and Technology)

Corral, Eva (University of Huelva)

Höfle, Bernhard ((3D Geospatial Data Processing Group, Institute of Geography, Heidelberg University, Germany))

Bubenzer, Olaf ((Institute of Geography, Heidelberg University, Germany))

heiDATA

Vallejo Orti, Miguel

https://doi.org/10.11588/data/PXDR4M

Earth and Environmental Sciences

gully erosion, digital elevation models, automatic detection

Characterization of micro-terrain features has been explored to detect gully objects in the terrain. An adaptation to the morphological reconstruction operator is implemented to detect gullies instead of buildings or other man-made structures. This operator can be configured to different gully depths and widths. The algorithm is based on successive geodesic dilations applied on a moving kernel. The geodesic dilation uses a mask (shifted copy of the original terrain) to generate a reconstructed surface, which ultimately can be subtracted from the original terrain to produce off-terrain elements or gully zones. Thus, the algorithm uses as inputs the original DEM, and a predefined height (mask shift) and width (kernel size) in meters, to customize the minimum detectable gully by the operator.

Vallejo Orti, M.; Negussie, K.; Corral-Pazos-de-Provens, E.; Höfle, B.; Bubenzer, O. Comparison of Three Algorithms for the Evaluation of TanDEM-X Data for Gully Detection in Krumhuk Farm (Namibia). Remote Sens. 2019, 11, 1327. doi: 10.3390/rs11111327

10.3390/rs11111327

Vallejo Orti, M.; Negussie, K.; Corral-Pazos-de-Provens, E.; Höfle, B.; Bubenzer, O. Comparison of Three Algorithms for the Evaluation of TanDEM-X Data for Gully Detection in Krumhuk Farm (Namibia). Remote Sens. 2019, 11, 1327. doi: 10.3390/rs11111327

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IMR_report.txt

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Example of Output data

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inverse_morphological_reconstruction.py

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Code

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MetaData_inverse_morphological_reconstuction.txt

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Code Metadata

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points_dem3.txt

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Example of Input data

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