GAY
Michel
Ingénieur de Recherche CNRS
Roughness measurements: soil, snow, ice
.
.
Acquisition of data by photography
Reconstructed area by VisualSFM
(open source photogrammetry software)
Acquisition of data by laser and PC (or smartphone)
Reconstructed area by specific software matlab
The standard deviation and the correlation length are calculated from the following equation, where sigma is the Root Mean Square and L the correlation lenght.
Comparison between laser and photography:
Coming soon instructions to use the codes... !!
Reconstructed area by VisualSFM
(open source photogrammetry software)
Acquisition of data by laser and PC (or smartphone)
Reconstructed area by specific software matlab
The standard deviation and the correlation length are calculated from the following equation, where sigma is the Root Mean Square and L the correlation lenght.
Comparison between laser and photography:
| Laser | Photography | |
| RMS (cm) | 2.45 | 2.53 |
| Correlation length (cm) |
8.2 | 10.3 |
Coming soon instructions to use the codes... !!
Grenoble Images Parole Signal Automatique laboratoire
UMR 5216 CNRS - Grenoble INP - Université Joseph Fourier - Université Stendhal