NDLI: Finding and tracking road lanes using "line-snakes"

Content Provider	IEEE Xplore Digital Library
Author	Dong Jung Kang Jang Won Choi In So Kweon
Copyright Year	1996
Description	Author affiliation: Dept. of Autom. & Design Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea (Dong Jung Kang)
Abstract	This paper presents a method for finding and tracking road lanes. The method extracts and tracks lane boundaries for vision-guided vehicle navigation by combining the Hough transform and the "active line model (ALM)". The Hough transform can extract vanishing points of the road, which can be used as a good estimation of the vehicle heading. For the curved road, however, the estimation may be too crude to be used for navigation. Therefore, the Hough transform is used to obtain an initial position estimation of the lane boundaries on the road. The line snake-ALM-then improves the initial approximation to an accurate configuration of the lane boundaries. Once the line snake is initialized in the first image, it tracks the road lanes using the external and internal forces computed from images and a proposed boundary refinement technique. Specifically, an image region is divided into a few subregions along the vertical direction. The Hough transform is then performed for each sub-region and candidate lines of road lanes in each sub-region are extracted. Among candidate fines, a most prominent fine is found by the ALM that minimizes a defined snake energy. The external energy of ALM is a normalized sum of image gradients along the line. The internal deformation energy ensures the continuity of two neighboring lines by using the angle-difference between two adjacent lines and the distance between the two lines. A search method based on the dynamic programming reduces the computational cost. The proposed method gives a unified framework for detecting, refining and tracking the road lane. Experimental results using images of a real road scene are presented.
Starting Page	189
Ending Page	194
File Size	1209563
Page Count	6
File Format	PDF
ISBN	0780336526
DOI	10.1109/IVS.1996.566376
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-09-19
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image edge detection Navigation Road vehicles Design automation Internet Machinery Search methods Dynamic programming Computational efficiency Layout
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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