Segmentation and Recognition of Traffic Signs using Shape Information and Edge Image in Real Image


The KIPS Transactions:PartB , Vol. 11, No. 2, pp. 149-158, Apr. 2004
10.3745/KIPSTB.2004.11.2.149,   PDF Download:

Abstract

This study proposes a method for segmentation and recognition of traffic signs usingshape information and edge image in real image. It first segments traffic sign candidate regions by connected component algorithm from binary images, obtained by utilizing the RGB color ratio of each pixel in the image, and then extracts actual traffic signs based on their symmetries on X- and Y-axes. Histogram equalization is performed for unsegmented candidate regions caused by low contrast in the image. In the recognition stage, it utilizes shape information including projection profiles on X- and Y-axes, moment, and the number of crossings and distance which concentric circular patterns and 8-directional rays from region center intersects with edges of traffic signs. It finally performs recognition by measuring similarity with the templates in the database. It will be shown from several experimental results that the system is robust to environmental factors, such as light and weather condition.


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Cite this article
[IEEE Style]
G. H. Ug, O. J. Taeg, K. U. Hyeon, "Segmentation and Recognition of Traffic Signs using Shape Information and Edge Image in Real Image," The KIPS Transactions:PartB , vol. 11, no. 2, pp. 149-158, 2004. DOI: 10.3745/KIPSTB.2004.11.2.149.

[ACM Style]
Gwag Hyeon Ug, O Jun Taeg, and Kim Ug Hyeon. 2004. Segmentation and Recognition of Traffic Signs using Shape Information and Edge Image in Real Image. The KIPS Transactions:PartB , 11, 2, (2004), 149-158. DOI: 10.3745/KIPSTB.2004.11.2.149.