NDLI: A real-time approach to stereopsis and lane-finding

Content Provider	IEEE Xplore Digital Library
Author	Taylor, C.J. Malik, J. Weber, J.
Copyright Year	1996
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA (Taylor, C.J.)
Abstract	Reports new results we have obtained in applying stereo vision algorithms to the problem of autonomous vehicle navigation on highways. The project consists of two parts: lane extraction and obstacle detection. Our lane extraction system is based on a parameterized model for the appearance of the lanes in the images. This model captures the position, orientation and width of the lane as well as the height and inclination of the stereo rig with respect to the road. A robust lane recognition procedure is employed to recover the position of the vehicle within the lane. This scheme is able to recover and track the lane markers in real time (20 Hz) even in the presence of a significant number of spurious lane features. We have developed a new real time stereo system (20 Hz) that has been optimized for use in a highway navigation system. The algorithm first extracts vertical line features from a subset of the scan lines in the left and right images. Correspondences are made between line features in the left and right images by a region-based correlation scheme. The results of this process can then be passed to the grouping and tracking process. The paper also describes the implementation of these algorithms on our network of TMS320C40 DSPs. This computational architecture allows us to handle the demanding computational and I/O requirements of these applications. These algorithms have been tested on video data obtained from a test vehicle that was driven in typical highway traffic. Results from these experiments are presented.
Starting Page	207
Ending Page	212
File Size	767451
Page Count	6
File Format	PDF
ISBN	0780336526
DOI	10.1109/IVS.1996.566379
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	Road transportation Road vehicles Navigation Testing Stereo vision Remotely operated vehicles Mobile robots Robustness Real time systems Feature extraction
Content Type	Text
Resource Type	Article

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