| 摘要 |
<p>A processing computer, which is placed within a vehicle, comprises: a line sensor image creating unit (4a) for creating a line sensor image obtained by arranging, in a time sequence manner, image signals input from a line sensor camera (2) placed on the roof of the vehicle for image-capturing trolley wires; a GSTH process unit (4b) for performing a GSTH process for the input image to create a GSTH image; a binarizing process unit (4c) for performing a binarizing process for the input image to create a binarized image; a trolley wire abrasion section edge detecting unit (4d) for detecting both edges of an abrasion section of the trolley wires for the input image; and a trolley wire abrasion section width calculating unit (4e) for detecting, from the positions of both edges of the abrasion section, an abrasion amount of the trolley wires.</p> |
