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Vol.11 No.2previousAA157- SP20 (AA158-159-160-161-162) NT94

Academic Articles
Regular Paper Vol.11 No.2 (2019) p.99 - p.105
 

3D Environment Reconstruction Based on Images Obtained by Reconnaissance Task in Fukushima Daiichi Nuclear Power Station

 

Toshihide HANARI1,* and Kuniaki KAWABATA1

 
1 Japan Atomic Energy Agency, 1-22 Nakamaru, Yamadaoka, Naraha-machi, Futaba-gun, Fukushima 979-0513, Japan
 
Abstract
This paper describes a three-dimensional environment reconstruction obtained from multiple images, aiming to determine the status of the reactor building of Fukushima Daiichi Nuclear Power Station. The Structure from Motion was used to estimate the three-dimensional structure of the objects and camera trajectory. To improve the feature detection achieved using the Structure from Motion, a contrast enhancement filter and unsharp masking filter were applied to pre-process the images. We applied the Structure from Motion method to pre-process multiple images obtained by reconnaissance inside the Primary Containment Vessel of Unit 3 using a remotely operated vehicle. Moreover, to improve the visibility, a Multi-View Stereo technique was applied to the data generated using the Structure from Motion. Herein, we report the results of the three-dimensional environment reconstruction.
 
Keywords
3D reconstruction, Structure from Motion, multiple images, decommissioning, Fukushima Daiichi Nuclear Power Station
 
Full Paper: PDF EJAM Vol. 11 No. 2 pp.99-105 "3D Environment Reconstruction Based on Images Obtained by Reconnaissance Task in Fukushima Daiichi Nuclear Power Station"
Article Information
Article history:
Received 23 October 2018
Accepted 30 August 2019