Abstract. This paper presents PICANTEO, a modular and multi-modal change detection framework designed for remote sensing applications in natural disaster response. The framework aims to support damage assessment during both the rapid mapping phase, which occurs in the immediate aftermath of a disaster, and the longer recovery phase. PICANTEO provides automated, reliable disaster-related change detection maps and associated impacted areas to support a wide range of disaster monitoring activities. The integration of uncertainty and ambiguity concepts ensures reliable and qualified results. PICANTEO handles multi-modal remote sensing data, including very high-resolution optical imagery, Digital Surface Models, and Synthetic Aperture Radar (SAR) data. Its modular architecture enables users to apply ready-to-use pipelines or implement their own workflows. The provided scalable components can be combined or extended by custom methods to define new applied pipelines. Several real-world case studies demonstrate PICANTEO’s ability to address various disaster scenarios across diverse geographic contexts. Source code is available at: https://github.com/CNES/picanteo.
Dimitri Lallement, C. Hümmer, D. Youssefi et al.· The International Archives o...· 0 citations
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 resolution ensure a performant matching between the stereo images, and the geometry guarantees an accurate altimetry. The Image Quality In-Orbit Test (IOT) phase has permitted to tune the on-board parameters before starting the massive acquisitions. Dedicated acquisition modes were used on calibration sites spread throughout the world. Thanks to the agility of the satellite, celestial acquisitions are possible and support the radiometry and resolution calibrations. This paper does not include the in-orbit performances due to confidentiality agreement.
Fabrice Buffe, Sylvain Lucas, Alice Latourte et al.· The International Archives o...· 0 citations
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