Insight on the contribution of photogrammetry and UAVsto the mapping and monitoring of unstable rock slopes

Reginald Hermanns

based on presentation and data

by Pierrick Nicolet and Ivanna Penna

Photogrammetry and UAV January 31st, 2017 1 /15

Helicopter versus UAV

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Introduction

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UAV versus aerial photo

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Introduction

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Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Georeferencing

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Helicopter

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Georeferencing

Georeferencing

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Helicopter

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Georeferencing

Georeferencing

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Helicopter

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Georeferencing

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Helicopter

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Results

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Helicopter

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Results

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UAV

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Results

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UAV

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Results

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Helicopter versus UAV

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Results

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Helicopter versus UAV

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Results

- Combination of both allows to catch the unstable slope from more views. Specially for unstable slope with very steep fronts.

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Helicopter versus UAV

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Results

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High resolution photogrammetric model of Åkneset

Photogrammetry and UAV January 31st, 2017Norges Geologsike Undersøkelse

Proposal

• Documentation of changes on the surface over the year

• Activity of springs / change over the year – where to install gauges• Rock fall activity• Deformation of the surface

• Optimal 3D base data for 3D geological model to include all data in 3D software

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