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Authors: Sinan Kalkan 1 ; Florentin Wörgötter 1 ; Shi Yan 2 ; Volker Krüger 2 and Norbert Krüger 3

Affiliations: 1 Bernstein Center for Computational Neuroscience, Univ. of Göttingen, Germany ; 2 Medialogy Lab, Aalborg Univ., Denmark ; 3 Cognitive Vision Lab, Univ. of Southern Denmark, Denmark

Keyword(s): Feedback Mechanisms, Edge Extraction, Rigid Body Motion, Signal–Symbol Loop.

Abstract: The transition to symbolic information from images involves in general the loss or misclassification of information. One way to deal with this missing or wrong information is to get feedback from concrete hypotheses derived at a symbolic level to the sub-symbolic (signal) stage to amplify weak information or correct misclassifications. This paper proposes such a feedback mechanism between the symbolic level and the signal level, which we call signal symbol loop. We apply this framework for the detection of low contrast edges making use of predictions based on Rigid Body Motion. Once the Rigid Body Motion is known, the location and the properties of edges at a later frame can be predicted. We use these predictions as feedback to the signal level at a later frame to improve the detection of low contrast edges. We demonstrate our mechanism on a real example, and evaluate the results using an artificial scene, where the ground truth data is available.

CC BY-NC-ND 4.0

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Paper citation in several formats:
Kalkan, S.; Wörgötter, F.; Yan, S.; Krüger, V. and Krüger, N. (2008). A SIGNAL-SYMBOL LOOP MECHANISM FOR ENHANCED EDGE EXTRACTION. In Proceedings of the Third International Conference on Computer Vision Theory and Applications (VISIGRAPP 2008) - Volume 1: VISAPP; ISBN 978-989-8111-21-0; ISSN 2184-4321, SciTePress, pages 214-221. DOI: 10.5220/0001077602140221

@conference{visapp08,
author={Sinan Kalkan. and Florentin Wörgötter. and Shi Yan. and Volker Krüger. and Norbert Krüger.},
title={A SIGNAL-SYMBOL LOOP MECHANISM FOR ENHANCED EDGE EXTRACTION},
booktitle={Proceedings of the Third International Conference on Computer Vision Theory and Applications (VISIGRAPP 2008) - Volume 1: VISAPP},
year={2008},
pages={214-221},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001077602140221},
isbn={978-989-8111-21-0},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Third International Conference on Computer Vision Theory and Applications (VISIGRAPP 2008) - Volume 1: VISAPP
TI - A SIGNAL-SYMBOL LOOP MECHANISM FOR ENHANCED EDGE EXTRACTION
SN - 978-989-8111-21-0
IS - 2184-4321
AU - Kalkan, S.
AU - Wörgötter, F.
AU - Yan, S.
AU - Krüger, V.
AU - Krüger, N.
PY - 2008
SP - 214
EP - 221
DO - 10.5220/0001077602140221
PB - SciTePress

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