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Authors: A. S. M. Shihavuddin ; Nuno Gracias and Rafael Garcia

Affiliation: Universitat de Girona, Spain

Keyword(s): Sunflicker, Dynamic Texture, Illumination Field, Shallow Underwater Images.

Related Ontology Subjects/Areas/Topics: Color and Texture Analyses ; Computer Vision, Visualization and Computer Graphics ; Image and Video Analysis ; Image Enhancement and Restoration ; Image Formation and Preprocessing ; Image Registration

Abstract: An underwater vision system operating in shallow water faces unique challenges, which often degrade the quality of the acquired data. One of these challenges is the sunflicker effect, created from refracted sunlight casting fast moving patterns on the seafloor. Surprisingly few previous works exist to address this topic. The best performing available method mitigates the sunflickering effect using offline motion compensated filtering. In the present work, we propose an online sunflicker removal method targeted at producing better registration accuracy. The illumination field of the sunflicker effect is considered as a dynamic texture, since it produces repetitive dynamic patterns. With that assumption, the dynamic model of the sunflicker is learned from the registered illumination fields of the previous frames and is used for predicting that of the next coming frame. Such prediction allows for removing the sunflicker patterns from the new frame and successfully register it against pr evious frames. Comparative results are presented using challenging test sequences which illustrate the better performance of the approach against the closest related method in the literature. (More)

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Paper citation in several formats:
S. M. Shihavuddin, A.; Gracias, N. and Garcia, R. (2012). ONLINE SUNFLICKER REMOVAL USING DYNAMIC TEXTURE PREDICTION. In Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2012) - Volume 2: VISAPP; ISBN 978-989-8565-03-7; ISSN 2184-4321, SciTePress, pages 161-167. DOI: 10.5220/0003811901610167

@conference{visapp12,
author={A. {S. M. Shihavuddin}. and Nuno Gracias. and Rafael Garcia.},
title={ONLINE SUNFLICKER REMOVAL USING DYNAMIC TEXTURE PREDICTION},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2012) - Volume 2: VISAPP},
year={2012},
pages={161-167},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003811901610167},
isbn={978-989-8565-03-7},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2012) - Volume 2: VISAPP
TI - ONLINE SUNFLICKER REMOVAL USING DYNAMIC TEXTURE PREDICTION
SN - 978-989-8565-03-7
IS - 2184-4321
AU - S. M. Shihavuddin, A.
AU - Gracias, N.
AU - Garcia, R.
PY - 2012
SP - 161
EP - 167
DO - 10.5220/0003811901610167
PB - SciTePress