Title :
Dynamic obstacle-detecting system for railway surroundings using a highly accurate laser-sectioning method
Author :
Jin, Y. ; Goto, Y. ; Nishimoto, Y. ; Aono, Y. ; Naito, H. ; Fukumoto, Y. ; Yamamura, T. ; Iwake, A.
Author_Institution :
Kobe Steele Ltd., Japan
fDate :
28 Oct-1 Nov 1991
Abstract :
High accuracy was obtained in real-time measurements over the wide area around the construction gauge using a laser-sectioning method. Novel imaging optics, having a different magnifying power in the horizontal and vertical directions, allows improvement in the accuracy while keeping the field of view sufficiently wide. A real-time measurement was realized by the implementation of a pipeline video-rate processor. Experiments on the Takayama Line of the Central Japan Railway confirmed that most objects such as a platform, tunnel, or bridge could be successfully detected. The range accuracy was within 10 mm in 3 σ at speeds up to 7 km/h and most objects could be detected at speeds up to 40 km/h
Keywords :
computer vision; computerised instrumentation; image processing; measurement by laser beam; pattern recognition; pipeline processing; railways; safety; 40 km/h; 7 km/h; Central Japan Railway; Takayama Line; bridge; construction gauge; dynamic system; horizontal direction; imaging optics; laser-sectioning; obstacle-detecting; pipeline video-rate processor; platform; railway; real-time measurements; tunnel; vertical directions; Area measurement; Gold; Image sensors; Object detection; Optical imaging; Optical sensors; Pipelines; Rail transportation; Railway safety; Steel;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.238964
