3D structural reconstruction based on images obtained by survey task for decommissioning

Hanari, Toshihide ; Kawabata, Kuniaki   

In this paper, we propose a method for improving a visibility of a reconstructed 3D model from images that were photographed at Fukushima Daiichi Nuclear Power Station (NPS). The process of the proposed method consists of pre-processing for correcting a quality of the images, Structure from Motion (SfM) and post-processing for generating a 3D model. We describe the results of the 3D structural reconstruction utilizing plural images recorded by an underwater Remotely Operated Vehicle (ROV) inside the Primary Containment Vessel (PCV). We discussed about the experimental results and confirmed that the proposed method reconstructed major structure in the PCV based on the images.