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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Fabrice Buffe

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Open access Jul 2026

CO3D Image Quality Calibration

Abstract. The launch of the four CO3D satellites took place on 25th July 2025. One of the goals of the mission is to generate a worldwide, accurate and low-cost Digital Surface Model (DSM) at a resolution and relative height accuracy of 1m. This 3D performance relies on well-controlled image quality: the radiometry and...

Fabrice Buffe, Sylvain Lucas, Alice Latourte et al. · 0 citations
Open access Jul 2026

Line of Sight Calibration for Satellite Imagery Based on Matrix Detector

Abstract. This study presents a self-calibration method for optical Earth observation satellites equipped with matrix sensors. Precise geolocation of each pixel in a satellite image requires accurate modelling of the acquisition geometry, typically achieved through refinement that corrects the geometry using measuremen...

Guillaume Laurent, Alice Latourte, Fabrice Buffe et al. · 0 citations
Open access Jul 2026

Global Block Adjustment for Mosaicked Stereoscopic Satellite Imagery

The results highlight that careful parameterization — combining observation weighting, n-tuple point filtering, and per-satellite sensor refinement — is key to producing accurate, geometrically consistent large-scalemosaics from bi-satellite stereo imagery.

Michaël Erblang, Emelyne Saulnier, Guillaume Laurent et al. · 2 citations

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