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http://dx.doi.org/10.5391/JKIIS.2010.20.6.786

Lane Detection in Complex Environment Using Grid-Based Morphology and Directional Edge-link Pairs  

Lin, Qing (숭실대학교 전자공학과)
Han, Young-Joon (숭실대학교 전자공학과)
Hahn, Hern-Soo (숭실대학교 전자공학과)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.20, no.6, 2010 , pp. 786-792 More about this Journal
Abstract
This paper presents a real-time lane detection method which can accurately find the lane-mark boundaries in complex road environment. Unlike many existing methods that pay much attention on the post-processing stage to fit lane-mark position among a great deal of outliers, the proposed method aims at removing those outliers as much as possible at feature extraction stage, so that the searching space at post-processing stage can be greatly reduced. To achieve this goal, a grid-based morphology operation is firstly used to generate the regions of interest (ROI) dynamically, in which a directional edge-linking algorithm with directional edge-gap closing is proposed to link edge-pixels into edge-links which lie in the valid directions, these directional edge-links are then grouped into pairs by checking the valid lane-mark width at certain height of the image. Finally, lane-mark colors are checked inside edge-link pairs in the YUV color space, and lane-mark types are estimated employing a Bayesian probability model. Experimental results show that the proposed method is effective in identifying lane-mark edges among heavy clutter edges in complex road environment, and the whole algorithm can achieve an accuracy rate around 92% at an average speed of 10ms/frame at the image size of $320{\times}240$.
Keywords
Lane detection; Grid-based morphology; Directional edge-linking; Line-template matching;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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