Inspection device, inspection method, and inspection program
The inspection device uses camera-based image processing to align three-dimensional point cloud images with reference maps, addressing GPS interference issues and reducing costs by eliminating the need for special site systems.
JP7864572B2Active Publication Date: 2026-05-25KK TOSHIBA +1
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- KK TOSHIBA
- Filing Date
- 2022-07-11
- Publication Date
- 2026-05-25
AI Technical Summary
Technical Problem
Conventional on-site inspection methods in power plants and factories face challenges in identifying the shooting location of recorded video footage due to GPS signal interference indoors, and introducing additional systems to pinpoint locations is costly and burdensome.
Method used
An inspection device that acquires images using a camera, extracts two-dimensional point cloud images, creates a three-dimensional point cloud image, estimates shooting positions, and aligns it with a reference map to determine coordinates without requiring special site mechanisms.
Benefits of technology
Enables accurate identification of shooting locations using camera photography without additional site mechanisms, facilitating efficient footage retrieval and reducing maintenance costs.
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Smart Images
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Abstract
To provide an on-site inspection technique involving camera photography, which can identify a photographing position without introducing a special mechanism on-site.SOLUTION: An inspection device 10A includes: an acquisition unit 21 that acquires a photographed image 11 of a site 30 while moving a camera 20; an extraction unit 22 that extracts a two-dimensional point group image 12 composed of feature points 15 from the photographed image 11; a creation unit 25 that creates a three-dimensional point group image 13 from a plurality of two-dimensional point group images 12 at different photographing positions P at the site 30; an estimation unit 26 that estimates, on the basis of the three-dimensional point group image 13, each photographing position P of the plurality of two-dimensional point group images 12; a derivation unit 27 that derives a parameter 18 that matches the three-dimensional point group image 12 to a reference map 17 of the site 30; and a recording unit 28 records, on the basis of the parameter 18, the photographing position P in association with position coordinates Q of the reference map 17.SELECTED DRAWING: Figure 1
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