抄録
In assembling large structures such as railway vehicles, escalators, and elevators, 3D measurement is important for verifying that parts are attached accurately. In this paper, a method to measure the 3D shape from the inside is proposed. Accurate cross-section shapes, obtained by the light-section method, are integrated in a new way with Structure from Motion using a laser. Further, an optical filter and a new block matching technique are introduced to avoid the influence of laser light on images while integrating the cross-section shapes. In a measurement experiment conducted inside a hall, the validity of the proposed method was confirmed.
