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Inspection system for railway facilities using a continuously scanned image
Author(s) -
Sasama Hiroshi,
Ukai Masato,
Ohta Masaru,
Miyamoto Takefumi
Publication year - 1998
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(19981115)125:2<52::aid-eej7>3.0.co;2-n
Subject(s) - scrolling , zoom , computer vision , computer science , artificial intelligence , pixel , automated x ray inspection , image (mathematics) , image processing , engineering , petroleum engineering , lens (geology)
A continuously scanned image (CSI) gives convenient image data for inspection of elongated facilities in railways, such as tracks, rolling stocks, and so on. We have developed a system named ConSIS to take the CSI at a high data rate of 40 M pixel/s. The system comprises a line‐sensor camera and a data‐recorder. As the result of field tests taking the CSI of tracks, rolling stock, and tunnel walls, the feasibility of an inspection system using the CSI was confirmed. Additionally, we have developed a prototype image database system to examine effective use of the CSI, in which useful functions, such as normalizing a scale of the CSI, scrolling a continuous image, and zooming a fine image for observation, are implemented. Further, we have developed a method to extract cracks on a concrete surface for automatic inspection using the CSI and a computer. © 1998 Scripta Technica, Electr Eng Jpn, 125(2): 52–64, 1998