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A new learning strategy for stereo matching derived from a fuzzy clustering method

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Pajares Martinsanz, Gonzalo and Cruz García, Jesús Manuel de la (2000) A new learning strategy for stereo matching derived from a fuzzy clustering method. Fuzzy Sets and Systems, 110 (3). pp. 413-427. ISSN 0165-0114

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Official URL: http://dx.doi.org/10.1016/S0165-0114(97)00382-5


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Abstract

This paper presents an approach to the local stereo correspondence problem. The primitives or features used are groups of collinear connected edge points called segments. Each segment has several associated attributes or properties. We have verified that the differences of the attributes for the true matches cluster in a cloud around a center. Then for each current pair of primitives we compute a distance between the difference of its attributes and the cluster center. The correspondence is established in the basis of the minimum distance criterion (similarity constraint). We have designed an image understanding system to learn the best representative cluster center. For such purpose a new learning method is derived from the Fuzzy c-Means (FcM) algorithm where the dispersion of the true samples in the cluster is taken into account through the Mahalanobis distance. This is the main contribution of this paper. A better performance of the proposed local stereo-matching learning method is illustrated with a comparative analysis between classical local methods without learning.


Item Type:Article
Additional Information:

© Elsevier Science BV.
The authors wish to acknowledge Prof. Dr. S. Dormido, Head of Department of Informática y Automática, CC Físicas, UNED, Madrid, for his support and encouragement. Part of this work has been performed under project CICYT TAP94-0832-C02-01. The constructive recommendations provided by the reviewers are also gratefully acknowledged.

Uncontrolled Keywords:C-Means, Neural Networks, Criterion, Disparity, Images
Subjects:Sciences > Computer science
ID Code:26386
Deposited On:11 Sep 2014 09:26
Last Modified:11 Sep 2014 09:26

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