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:
Jul. 10, 2001
Filed:
Sep. 02, 1998
Yoshihiro Sera, Komaki, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
While a vehicle is traveling, a line sensor camera shoots a tunnel wall surface. Line images from the line sensor camera which outputs a line image equivalent to one line from 2,048 pixels are digitized, and stored in a buffer memory in a state arranged in a moving direction of the line sensor camera. Whenever image data corresponding to 2,048 pixels×472 lines are stored, the image data are divided into four plane image data each composed of 512 pixels×472 lines. Each plane image is converted to a video image signal by a video signal converter in chronological order, and the video image signal is recorded on a video tape by a video deck. The recorded video tape is played back by another video deck, and a reproduced image is image processed by an image processor, whereby the state of the tunnel wall surface can be inspected. Thus, the equipment cost is reduced, and the time required for inspection shortened.