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Journal Article

Citation

Wang T, Zheng N, Xin J, Ma Z. Sensors (Basel) 2011; 11(9): 8992-9008.

Affiliation

Institute of Artificial Intelligence and Robotics, Xi'an Jiaotong University, Xi'an 710049, China; E-Mails: nnzheng@mail.xjtu.edu.cn (N.Z.); jxin@mail.xjtu.edu.cn (J.X.); mazheng1985@gmail.com (Z.M.).

Copyright

(Copyright © 2011, MDPI: Multidisciplinary Digital Publishing Institute)

DOI

10.3390/s110908992

PMID

22164117

PMCID

PMC3231508

Abstract

This paper presents a systematic scheme for fusing millimeter wave (MMW) radar and a monocular vision sensor for on-road obstacle detection. As a whole, a three-level fusion strategy based on visual attention mechanism and driver's visual consciousness is provided for MMW radar and monocular vision fusion so as to obtain better comprehensive performance. Then an experimental method for radar-vision point alignment for easy operation with no reflection intensity of radar and special tool requirements is put forward. Furthermore, a region searching approach for potential target detection is derived in order to decrease the image processing time. An adaptive thresholding algorithm based on a new understanding of shadows in the image is adopted for obstacle detection, and edge detection is used to assist in determining the boundary of obstacles. The proposed fusion approach is verified through real experimental examples of on-road vehicle/pedestrian detection. In the end, the experimental results show that the proposed method is simple and feasible.


Language: en

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