Journal of Shanghai University(Natural Science Edition) ›› 2019, Vol. 25 ›› Issue (1): 56-65.doi: 10.12066/j.issn.1007-2861.1889

• Research Articles • Previous Articles     Next Articles

Front-vehicle detection method based on monocular vision

CHEN Gaopan1, XU Meihua2(), WANG Qi1, GUO Aiying2   

  1. 1. Microelectronic Research and Development Center, Shanghai University, Shanghai 200444, China
    2. School of Mechatronic Engineering and Automation, Shanghai University,Shanghai 200444, China
  • Received:2017-02-24 Online:2019-02-28 Published:2019-02-26
  • Contact: XU Meihua E-mail:mhxu@shu.edu.cn

Abstract:

To speed and improve accuracy of front-vehicle detection, limitations of Qtsu threshold and poor robustness of cumulative-density-function (CDF) threshold in the extraction of region-of-interest (ROI) are analyzed. An artificial neural network (ANN) method is used to fit threshold point to improve accuracy and robustness of the threshold and reduce false ROIs. A region-hexagon-segmentation method is presented to deal with overlap between vehicle region and background in a complicated environment for reducing misdetection. Haar features in the ROIs are extracted, and the ROIs are classified with an optimized adaptive boosting (AdaBoost) classifier to get real vehicle target. Experiments show that processing speed using the proposed method is 81.3 frames per second for a 640$\times $480 video with an error rate of 3.8%.

Key words: vehicle detection, region-of-interest (ROI), artificial neural network (ANN), Haar, adaptive boosting (AdaBoost)

CLC Number: