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Auteur Jan Larsson |
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Rectification of digital images for remote sensing analysis / Jan Larsson (1980)
Titre : Rectification of digital images for remote sensing analysis Type de document : Thèse/HDR Auteurs : Jan Larsson, Auteur Editeur : Stockholm : Royal Institute of Technology Année de publication : 1980 Importance : 103 p. Format : 17 x 25 cm Note générale : bibliographie
PhD ThesisLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] analyse diachronique
[Termes IGN] application informatique
[Termes IGN] classification multibande
[Termes IGN] correction d'image
[Termes IGN] données auxiliaires
[Termes IGN] image Landsat-MSS
[Termes IGN] image multibande
[Termes IGN] image multitemporelle
[Termes IGN] modèle géométrique de prise de vue
[Termes IGN] modèle numérique de terrain
[Termes IGN] restauration d'imageIndex. décimale : 35.20 Traitement d'image Résumé : (auteur) Development of computer programs for geometric rectification of digital images is a part of this study. These programs are, combined with programs for digital image analysis, important tools for handling of digital remote sensing data, obtained from, for example, LANDSAT. Here is shown how digital images from multispectral line scanners, both satellite and airborne, can be corrected for lacking geometric fidelity, thus giving a high point accuracy when localising objects from image data. By the use of a digital terrain model in the rectifiation of single strips of scanner imagery, the point accuracy can be as good for data over hilly terrain as for flat terrain. The point accuracy obtained is, for airborne scanner data, 2 pixels, expressed as a root mean square of residuals in check points. The corresponding value for satellite data ( LANDSAT ) is less than I pixel, when rectifying a part of a scene. By using ground control points for the rectification, data can be forced to match a suitable map projection. This gives certain advantages in the succeding use of the data. For example, a comparision with earlier conditions obtained from digitized map data or available in a co—ordinate based register demands the use of rectified data. The use of rectified data also helps the analyst in the identification and demarcation of training areas for the supervised multispectral classification. Also, rectified data constitutes the basis for an inclusion of data from different times in a multitemporal analysis. Doing so the classification accuracy can be increased of some objects and changes of the object can be studied. Information of other kind than spectral can be included in the classification as well. Here one way of utilizing topographic information to get a better discrimination between objects is presented. Note de contenu : Introduction
- Review of the geometry of scanner generated images
- The DIREDIM Computer Program For Differential Rectification of Digital Images
- The PICCOLA Program Library for Digital Image Processing at Stockhölm University Computing Centre
- Rectification of Airborne MSS Data to a Flat Surface
- Rectification of Airborne MSS Data using a Digital Terrain ModelNuméro de notice : 24948 Affiliation des auteurs : non IGN Thématique : IMAGERIE/INFORMATIQUE Nature : Thèse étrangère Note de thèse : PhD Thesis : Surveying : Stockhölm : 1980 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92909 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 24948-01 35.20 Livre Centre de documentation Télédétection Disponible