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Editor-in-chief

 
Faculty of Science, University of Brunei Darussalam, Brunei Darussalam   
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IJIEE 2013 Vol.3(1): 104-108 ISSN: 2010-3719
DOI: 10.7763/IJIEE.2013.V3.276

GA Based PHOG-PCA Feature Weighting for On-Road Vehicle Detection

Nima Khairdoost, S. Amirhassan Monadjemi, Zohreh Davarzani, and Kamal Jamshidi

Abstract—Vehicle detection is an important issue in driver assistance systems and self-guided vehicles that includes two stages of hypothesis generation and verification. In the first stage, potential vehicles are hypothesized and in the second stage, all hypothesis are verified. The focus of this work is to classify vehicle candidate images into vehicle and non-vehicle classes. We extract Pyramid Histograms of Oriented Gradients (PHOG) features from a traffic image as candidates of feature vectors to detect vehicles. Principle Component Analysis (PCA) is applied to these PHOG feature vectors as a dimension reduction tool to obtain the PHOG- PCA vectors. Then we employ real coded chromosome Genetic Algorithm (GA) and linear Support Vector Machine (SVM) to classify the PHOG-PCA features as well as to improve their performance and generalization. Our tests show good classification accuracy of more than 96% correct classification on realistic on-road vehicle images.

Index Terms—Feature weighting, GA, linear SVM, PCA, PHOG, vehicle detection.

Nima Khairdoost was with Department of Computer Engineering, Faculty of Engineering, University of Isfahan, Isfahan, 81746, Iran (e-mail:n.khairdoost@gmail.com).
S. Amirhassan Monadjemi and Kamal Jamshidi are with Department of Computer Engineering, Faculty of Engineering, University of Isfahan, Isfahan, 81746, Iran (e-mail: monadjemi@eng.ui.ac.ir, jamshidi@eng.ui.ac.ir)
Zohreh Davarzani was with Department of Computer Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran(e-mail: z_davarzani@yahoo.com).

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Cite: Nima Khairdoost, S. Amirhassan Monadjemi, Zohreh Davarzani, and Kamal Jamshidi, "GA Based PHOG-PCA Feature Weighting for On-Road Vehicle Detection," International Journal of Information and Electronics Engineering vol. 3, no. 1, pp. 104-108, 2013.

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