Combined use of a frame and a linear pushbroom camera for deep-sea 3D hyperspectral mapping

Type Proceedings paper
Date 2021-09
Language English
Author(s) Kumar Peeyush1, Gracias Nuno2, Istenic Klemen2, Garcia Rafael2, Arnaubec Aurelien3, Ferrera Maxime3, Bajjouk Touria3
Affiliation(s) 1 : Institute of Geodesy and Geoinformation, University of Bonn, Suisse
2 : Research Centre in Underwater Robotics (CIRS), University of Girona, Italy
3 : French Research Institute for Exploitation of the Sea (IFREMER), france
Meeting OCEANS 2021: San Diego – Porto
Source OCEANS 2021: San Diego – Porto, 2021, Electronic ISBN:978-0-692-93559-0, ISSN: 0197-7385. pp. 1-9
DOI 10.23919/OCEANS44145.2021.9706053
Keyword(s) Geometry, Sea surface, Three-dimensional displays, Navigation, Nonlinear distortion, Cameras, Sensors
Abstract

Hyperspectral (HS) imaging produces an image of an object across a large range of the visible spectrum, and not just the primary colors (R, G, B) of conventional cameras. It can provide valuable information for object detection, analysis of materials and processes in environmental science in the deep-sea, especially for the study of benthic environments and pollution monitoring. In this paper, we address the problem of camera calibration towards 3D hyperspectral mapping where GPS is not available, and the platform navigational sensors are not accurate enough to allow direct georeferencing of linear sensors, as is the case with traditional aerial platform methods. Our approach presents a preliminary method for 3D hyperspectral mapping that uses only image processing techniques to reduce reliance on GPS or navigation sensors. The method is based on the use of standard RGB camera coupled with the hyperspectral pushbroom camera. The main contribution is the implementation and preliminary testing of a method to relate the two cameras using image information alone. The experiments presented in this paper analyze the estimation of relative orientation and time synchronization parameters for both cameras through experiments based on epipolar geometry and Monte-Carlo simulation. All methods are designed to work with real world data.

Full Text
File Pages Size Access
Author's final draft IN PRESS 9 888 KB Open access
Top of the page

How to cite 

Kumar Peeyush, Gracias Nuno, Istenic Klemen, Garcia Rafael, Arnaubec Aurelien, Ferrera Maxime, Bajjouk Touria (2021). Combined use of a frame and a linear pushbroom camera for deep-sea 3D hyperspectral mapping. OCEANS 2021: San Diego – Porto, 2021, Electronic ISBN:978-0-692-93559-0, ISSN: 0197-7385. pp. 1-9. https://archimer.ifremer.fr/doc/00759/87116/