Title :
Three-dimensional shape reconstruction by active rangefinder
Author :
Sato, Yukio ; Otsuki, Masaki
Author_Institution :
Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Japan
Abstract :
A new type of rangefinder is proposed, and a method for 3-D object shape reconstruction is described. The proposed rangefinder is compact and light and consists of a charge-coupled device camera, a galvano mirror, and a semiconductor laser. A slit-ray from the laser is scanned by the mirror and patterns of light are made by temporal switching of the laser. Range maps are obtained by the space encoded technique. A 512×256 range map is captured within 0.3 s. The rangefinder is installed at a tip of a robot manipulator, and takes range maps from various directions. Experimental results are described for range map integration and 3-D shape reconstruction
Keywords :
CCD image sensors; computer vision; image reconstruction; laser ranging; manipulators; 0.3 s; 3-D object shape reconstruction; 512×256 range map; active rangefinder; charge-coupled device camera; galvano mirror; range maps; robot manipulator; semiconductor laser; slit-ray; temporal switching; Cameras; Charge coupled devices; Charge-coupled image sensors; Image coding; Image reconstruction; Layout; Manipulators; Mirrors; Orbital robotics; Robot vision systems; Semiconductor lasers; Shape;
Conference_Titel :
Computer Vision and Pattern Recognition, 1993. Proceedings CVPR '93., 1993 IEEE Computer Society Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-8186-3880-X
DOI :
10.1109/CVPR.1993.340997
