New Hybrid Technique for traffic sign recognition

King Hann Lim, Li Minn Ang, Kah Phooi Seng

Research output: Book chapter/Published conference paperConference paperpeer-review

8 Citations (Scopus)

Abstract

A hybrid traffic sign recognition scheme combining of knowledge-based analysis and radial basis function neural classifier (RBFNN) is proposed in this paper. Initially, traffic signs are detected from the road scenes using color segmentation method. The extracted signs are then passed to the recognition system for classification. The proposed recognition technique composes of three stages: (i) color histogram classification, (ii) shape classification and, (iii) RBF neural classification. Based on the unique color and shape of traffic signs, they can be classified into smaller subclasses and can be easily recognized using RBFNN. Before feeding traffic sign into the RBFNN, traffic sign features are extracted by Principle Component Analysis (PCA) in order to reduce the dimensionality of the original images. This is followed by the Fisher's Linear Discriminant (FLD) to further obtain the most discriminant features. The performance of the proposed hybrid system is evaluated and compared to the purely neural classifier. The experimental results demonstrate that the proposed method has better recognition rate.

Original languageEnglish
Title of host publication2008 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2008
DOIs
Publication statusPublished - 01 Dec 2008
Event2008 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2008 - Bangkok, Thailand
Duration: 08 Feb 200911 Feb 2009

Conference

Conference2008 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2008
CountryThailand
CityBangkok
Period08/02/0911/02/09

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