| Titre | Fusion of Radarsat-2 polarimetric images for improved stereo-radargrammetric DEM |
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| Auteur | Toutin, T; Zakharov, I; Schmitt, C |
| Source | International Journal of Image and Data Fusion vol. 1, no. 1, 2010 p. 67-82, https://doi.org/10.1080/19479830903562025 |
| Image |  |
| Année | 2010 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20090339 |
| Éditeur | Informa UK Limited |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1080/19479830903562025 |
| Media | en ligne; numérique; papier |
| Formats | pdf |
| Province | Québec |
| SNRC | 21L/14 |
| Lat/Long OENS | -71.5000 -71.0000 47.0000 46.7500 |
| Sujets | imagerie par satellite; méthodes analytiques; télédétection; géophysique |
| Illustrations | formules; images satellitaires |
| Programme | Cartographie topographique |
| Diffusé | 2010 03 01 |
| Résumé | (disponible en anglais seulement)
The new full polarimetric modes of Radarsat-2 were evaluated for digital elevation model (DEM) generation using stereo-radargrammetry with Toutin's
three-dimensional physical model. The fusion of the four polarimetric bands was thus addressed to improve the resulting DEMs. The stereo-radargrammetric DEMs were evaluated with 20 cm accuracy Lidar elevation data. Results on a test site north of
Québec City, Canada showed a good accuracy: 5m and 6 -- 7m (1-delta) for the horizontal positioning and the elevation (on bare soils), respectively. However, the best results were obtained when the four polarimetric bands were fused with the
restoration method and the second best results (around 5% worse) were obtained with the SPAN method (total power of the four intensity bands). |
| GEOSCAN ID | 261494 |
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