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Proceedings Paper

Extraction of the front vehicle using projected disparity map
Author(s): Nobuhiro Tsunashima; Masato Nakajima
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Paper Abstract

To prevent rear-end collisions, it is necessary to measure the distance between a vehicle and the vehicle in front of it. In this paper we described a new technique for measuring this distance using stereoscopic images. A vehicle is represented by object points that are same distance from the stereo cameras. So, a disparity map calculated from the stereo images is projected in the ordinate direction. We call this map a 'Projected Disparity Map.' In the projected disparity map the disparities of the vehicle are translated into a straight line. So we can detect the front vehicle by extracting that straight line. To verify this method we applied it to stereoscopic images taken on an expressway. The experiments demonstrated the effectiveness of the methods.

Paper Details

Date Published: 28 December 1998
PDF: 8 pages
Proc. SPIE 3653, Visual Communications and Image Processing '99, (28 December 1998); doi: 10.1117/12.334638
Show Author Affiliations
Nobuhiro Tsunashima, Keio Univ. (Japan)
Masato Nakajima, Keio Univ. (Japan)


Published in SPIE Proceedings Vol. 3653:
Visual Communications and Image Processing '99
Kiyoharu Aizawa; Robert L. Stevenson; Ya-Qin Zhang, Editor(s)

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