Information
- Publication Type: Technical Report
- Workgroup(s)/Project(s): not specified
- Date: December 2004
- Number: TR-186-2-04-14
- Keywords: Underwater Imaging, Depth Map
Abstract
This paper describes a novel technique to simultaneously determining the threedimensional geometry and reflectance map of a scene in underwater imaging. Underwater light is affected by an exponential wavelenght-dependent absorption and undesired scattering effects. These special conditions make image and video processing a difficult task in participating media. It is shown how to use this disturbing absorption effect to find a new way to accurately estimate the scene depth-map and multispectral reflectivities. The process requires the acquisition of a multispectral image of the underwater scenario with the appropriate camera and lightsource arrangement. The algorithm has been tested on several synthetic images for different noise levels. The promising results show that the technique provides accurate and stable results.Additional Files and Images
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Weblinks
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@techreport{Neum04Hig, title = "High-resolution Depth and Reflectance Map Estimation in Underwater Imaging", author = "L\'{a}szl\'{o} Neumann and Rafael Garcia and Jordi Ferrer and Attila Neumann", year = "2004", abstract = "This paper describes a novel technique to simultaneously determining the threedimensional geometry and reflectance map of a scene in underwater imaging. Underwater light is affected by an exponential wavelenght-dependent absorption and undesired scattering effects. These special conditions make image and video processing a difficult task in participating media. It is shown how to use this disturbing absorption effect to find a new way to accurately estimate the scene depth-map and multispectral reflectivities. The process requires the acquisition of a multispectral image of the underwater scenario with the appropriate camera and lightsource arrangement. The algorithm has been tested on several synthetic images for different noise levels. The promising results show that the technique provides accurate and stable results.", month = dec, number = "TR-186-2-04-14", address = "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria", institution = "Institute of Computer Graphics and Algorithms, Vienna University of Technology ", note = "human contact: technical-report@cg.tuwien.ac.at", keywords = "Underwater Imaging, Depth Map", URL = "https://www.cg.tuwien.ac.at/research/publications/2004/Neum04Hig/", }