Strict geometric Calibration of an Underwater Laser Triangulation System

Publikation: Beitrag in FachzeitschriftKonferenzartikelBeigetragenBegutachtung

Abstract

This paper will describe a novel approach for the calibration of an underwater laser triangulation system. Underwater triangulation systems, consisting of a line laser and a camera can be used to determine the geometry of submerged objects or the topography of a water body bottom. Placing camera and laser line projector inside a waterproof housing leads to refraction effects at the air-glass-water interfaces, both of the laser light-sheet and image rays. This implies a deformed laser plane in the water and a curved line on the object surface. The proposed approach strictly models the geometry between camera, laser and housing. First experiments show, that the calibration method can be applied for water depth measurements with accuracies of 0.2-0.3mm at depths in the order of 100mm.

Details

OriginalspracheEnglisch
Seiten (von - bis)689-692
Seitenumfang4
FachzeitschriftInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Jahrgang43
AusgabenummerB2-2021
PublikationsstatusVeröffentlicht - 28 Juni 2021
Peer-Review-StatusJa

Externe IDs

Scopus 85116016555

Schlagworte

Forschungsprofillinien der TU Dresden

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

Schlagwörter

  • Calibration, Laser line, Triangulation, Underwater Photogrammetry, Calibration, Laser line, Triangulation, Underwater Photogrammetry