期刊
INTERNATIONAL JOURNAL OF NEURAL SYSTEMS
卷 18, 期 4, 页码 339-345出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0129065708001646
关键词
one-class SVM; color segmentation; road sign detection
资金
- Polish funds
In this paper we propose efficient color segmentation method which is based on the Support Vector Machine classifier operating in a one-class mode. The method has been developed especially for the road signs recognition system, although it can be used in other applications. The main advantage of the proposed method comes from the fact that the segmentation of characteristic colors is performed not in the original but in the higher dimensional feature space. By this a better data encapsulation with a linear hypersphere can be usually achieved. Moreover, the classifier does not try to capture the whole distribution of the input data which is often difficult to achieve. Instead, the characteristic data samples, called support vectors, are selected which allow construction of the tightest hypersphere that encloses majority of the input data. Then classification of a test data simply consists in a measurement of its distance to a centre of the found hypersphere. The experimental results show high accuracy and speed of the proposed method.
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