Method and apparatus for registration and vector extraction...

G - Physics – 06 – T

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G06T 5/50 (2006.01)

Patent

CA 2681707

A computer system (60)for registering synthetic aperture radar (SAR) images includes a database for storing SAR images to be registered, and a processor (69) for registering SAR images from the database. The registering includes selecting first and second SAR images to be registered, individually processing the selected first and second SAR images with an anisotropic diffusion algorithm, and registering the first and second SAR images after the processing. A shock filter is applied to the respective first and second processed SAR images before the registering. Elevation data is extracted based on the registered SAR images.

Système informatique (60) servant à enregistrer des images de radar à synthèse d'ouverture (RSO) et comprenant une base de données servant à mémoriser des images RSO à enregistrer, ainsi qu'un processeur (69) servant à enregistrer des images RSO à partir de la base de données. Cet enregistrement consiste à sélectionner une première et une deuxième image RSO à enregistrer, à traiter individuellement la première et la deuxième image RSO sélectionnées par un algorithme de diffusion anisotrope et à enregistrer la première et la deuxième image RSO après le traitement. On applique un filtre de choc à ces images RSO respectives traitées avant l'enregistrement. On extrait des données d'élévation sur la base des images RSO enregistrées.

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