Title:
DISPLACEMENT COMPONENT DETECTION DEVICE, DISPLACEMENT COMPONENT DETECTION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/097578
Kind Code:
A1
Abstract:
This displacement component detection device 10 is provided with: a displacement distribution calculation unit 11 which calculates, from time-series images of a measurement target region, a displacement distribution in a region that corresponds to the measurement target region in the images, the time-series images being output from an image capturing device 20 that captures the images of the measurement target region of an object 30; a movement amount calculation unit 12 which calculates, on the basis of the displacement distribution and image capturing information, a movement amount in the surface direction of the measurement target region and a movement amount in the normal direction of the measurement target region; and a surface displacement calculation unit 13 which calculates, from the displacement distribution, a surface displacement component in the measurement target region by using the movement amount in the surface direction of the measurement target region and the movement amount in the normal direction of the measurement target region.
Inventors:
OHTA MASAHIKO (JP)
Application Number:
PCT/JP2017/040946
Publication Date:
May 23, 2019
Filing Date:
November 14, 2017
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01M99/00; G01B11/16
Domestic Patent References:
| WO2017179535A1 | 2017-10-19 | |||
| WO2016152075A1 | 2016-09-29 |
Foreign References:
| US20160040984A1 | 2016-02-11 |
Other References:
YONEYAMA SATORU ET AL.: "Noncontact Deflection Ditribution Measurement of bridges Using Digital Image Correlation", JOURANL OF THE JAPANESE SOCIETY OF NON- DESTRUCTIVE INSPECTION, vol. 55, no. 3, March 2006 (2006-03-01), pages 119 - 125, XP055609983
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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