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:
Sep. 26, 2023
Filed:
Mar. 29, 2018
Nec Corporation, Tokyo, JP;
Gaku Nakano, Tokyo, JP;
Masahiko Ohta, Tokyo, JP;
Asuka Ishii, Tokyo, JP;
Kazuhito Murata, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A vibration measurement apparatusincludes a detection unitthat acquires, as a pattern image from an image capturing apparatusthat shoots a measurement target surface of a structure, an image of the measurement target surface onto which pattern light is projected by an optical apparatus, and detects the pattern light from the pattern image, an estimation unitthat estimates an angle between the normal of the image capturing surface and the normal of the measurement target surface, based on the pattern light, an image conversion unitthat converts the shot image into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus, using the estimated angle, and a vibration measurement unitthat measures the vibration of the structureusing the converted image.