The GPS camera application for the efficiency improvement of the bridge inspection

In this paper, we focus on the periodical data acquisition using GPS camera and stereo camera for bridge maintenance. Firstly, we took up some elements to take same photos. Additionally, we took photos under those elements and evaluated those photos. From experimental results, we have confirmed that we can take photos from same positions using GPS camera at the previous inspections. Secondary, we had already been able to acquire 3D data corresponding to close visual inspection. Therefore, we verified whether can accurately extract the cracks in 3D measurement at far position. As a results, we have defined condition constrains in a stereo measurement to acquire an accurate 3D data in periodical data acquisition. Finally, we have mentioned that our proposed methodology can evaluate a progress of bridge structure deterioration using photos.