The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 2021
Filed:
Oct. 16, 2019
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki, JP;
Takuya Futagami, Kanagawa, JP;
Yusuke Takahashi, Tokyo, JP;
Hiroyuki Kobayashi, Ibaraki, JP;
Yushi Kamo, Kanagawa, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION, Kawasaki, JP;
Abstract
A railroad track recognition apparatus has an index calculating unit, an initial searching unit, a secondary searching unit, and a railroad track recognizing unit. The index calculating unit calculates an index value, for each pixel or pixel group of a captured image. The initial searching unit selects a line segment, having a larger evaluation value obtained from the index values, from a plurality of line segments in a first search area, and the secondary searching unit selects a line segment, having a larger evaluation value obtained from the index values, from a second area or a third area. The railroad track recognizing unit recognizes a railroad track based on reference points of the line segments selected by the initial and secondary searching units.