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        <gco:CharacterString>Julien Viquerat 
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            <gco:CharacterString>LiDAR 2026 - Nuage de points colorisés des routes cantonales</gco:CharacterString>
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                <gco:Date>2026-10-30</gco:Date>
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        <gco:CharacterString>Nuages de points LiDAR terrestres acquis en 2026 dans le cadre d'une campagne de relevé par cartographie mobile (Mobile Mapping) couvrant les 2'185 km du réseau routier cantonal vaudois, y compris les traversées de localités.

Les données ont été acquises à l'aide d'un système de cartographie mobile équipé de deux scanners LiDAR et de caméras panoramiques 360°. Les nuages de points sont géoréférencés et colorisés (RGB) à partir des images panoramiques acquises simultanément, permettant une représentation tridimensionnelle détaillée des infrastructures routières et de leur environnement immédiat.
Le relevé couvre notamment les chaussées, les trottoirs, les ouvrages d'art, les bâtiments, la végétation et les équipements routiers situés à proximité des axes relevés.

Caractéristiques techniques du relevé :
Date d’acquisition : 24.03.2026 – 22.06.2026
Méthode : Mobile Mapping terrestre
Système d’acquisition : IGI StreetMapper V
Scanners LiDAR : 2 × Riegl VUX-HA1
Fréquence d’impulsion : 750 kHz par scanner
Vitesse d’acquisition : Optimale : 50–60 km/h ; maximale : 80 km/h
Densité du nuage brut : 8'000 points/m² sur la trajectoire et au minimum 350 points/m² à 10 m
Densité du nuage dédensifié : 4'000 points/m² sur la trajectoire et au minimum 300 points/m² à 10 m
Portée utile des scanners : 40 m
Géoréférencement : GNSS multi-constellations, centrale inertielle (IMU) et odomètre optique
Caméras panoramiques : Ladybug 5+ (32 Mpx) ou Mosaic-X (72 Mpx)
Colorisation : Valeurs RGB issues des images panoramiques
Format de téléchargement : LAZ 1.4
Classification thématique : Non
Système planimétrique : CH1903+ / MN95 (EPSG:2056)
Système altimétrique : NF02</gco:CharacterString>
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