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Pedestrian Detection Based on Ensemble Large Margin Distribution Machine
Cheng Fanyong,Zhang Jing *
College of Electrical and Engineering, Hunan University
*Correspondence author
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Funding: SRFDP Foundation (No.No. 20110161110035)
Opened online:11 March 2015
Accepted by: none
Citation: Cheng Fanyong,Zhang Jing.Pedestrian Detection Based on Ensemble Large Margin Distribution Machine[OL]. [11 March 2015] http://en.paper.edu.cn/en_releasepaper/content/4633082
 
 
This paper studies the problem of robust classifier for visual pedestrian detection, based on HOG (Histograms of Oriented Gradient) descriptors. The average gradient image over the training positive examples is similar with the personal sketch and the variance represents poses in various complicated environments. Inspired by these, Large Margin Distribution Learning is investigated. It is found that the performance of LDM classifier with appropriate parameters is better than SVMs', nevertheless it is difficult to obtain optimal parameters. In order to improve robustness, ELDM (Ensemble Large Margin Distribution Machine) including maximizing the minimum margin and two margin distributions is proposed, which is the best in convex combination of SVMs and two LDMs with different parameter orders. The impact of parameters which are sensitive in the robustness of LDM is weakened by ELDM and ensemble parameters are obtained by the mesh grid optimization. Experimental results show that ELDM can obtain better results than existing classifiers for pedestrian detection in the classification performance and stability.
Keywords:LDM; Ensemble; Robustness; Convex combination; Mesh grid parameter optimization
 
 
 

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