High-speed processing for obtaining three-dimensional distance image and its application

A high-speed method of 3-D distance acquisition based on the triangulation principle is presented. This method uses conventional devices such as a CCD camera, a laser emitting semiconductor, and scanning mirrors; however, new circuits have been developed for detecting the position of spot image on the CCD. This development enables the high speed measurement and reduces the cost of the apparatus. Experiments showed that the apparatus and the method gave the practical measuring accuracy and speed, and it was found that the system is useful for image recognition. This method can easily display the stereoscopic image and cross-sectional figure of the object body. The method of real time processing has also been developed with the view to apply the device to the range finders for robots and blind persons

Digital Object Identifier: 10.1109/IROS.1991.174477
Published with permission from the copyright holder. This is the institute's copy, as published in Intelligent Robots and Systems '91. 'Intelligence for Mechanical Systems, Proceedings IROS '91. IEEE/RSJ International Workshop on, 3-5 Nov. 1991, Vol. 1, Pages 365-370.
Publisher URL:http://dx.doi.org/10.1109/IROS.1991.174477
Copyright © 1991 IEEE. All rights reserved.