3D METHOD FOR INSPECTING STEEL STRUCTURE AUTOMATICALLY BASED ON 3D MODELING

Provided is an automatic inspection method for a steel structure based on a 3D model. According to an embodiment, an inspection method performed by a 3D model and an inspection device using photogrammetry comprises the steps of: generating shape model information of a steel structure which is a subj...

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Bibliographic Details
Main Author LEE, JAE KYUNG
Format Patent
LanguageEnglish
Korean
Published 11.07.2023
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Summary:Provided is an automatic inspection method for a steel structure based on a 3D model. According to an embodiment, an inspection method performed by a 3D model and an inspection device using photogrammetry comprises the steps of: generating shape model information of a steel structure which is a subject to be inspected; receiving the shape model information; and inspecting a match between the shape model information and 3D model information of the steel structure created in advance. In addition, a method for generating the shape model information, which is generated based on the photogrammetry and a depth map, comprises the steps of: generating a captured image of a shape model; generating an image-point cloud from the captured image; and converting the image-point cloud into a mesh. Accordingly, quality and reliability of the steel structure can be improved. 3D모델 기반 철골 구조물의 자동 검수방법이 제공된다. 일 실시예에 있어서, 3D모델 및 포토그래메트리(Photogrametry) 방식의 검수장치에 의해 수행되는 검수 방법으로, 검수 대상 인 철골 구조물의 형상모델 정보가 생성되는 단계; 상기 형상모델 정보를 입력받는 단계; 및 상기 형상모델 정보와 미리 작성된 상기 철골 구조물의 상기 3D모델 정보의 정합을 검수하는 단계; 를 포함하고, 상기 형상모델 정보는 상기 포토그래메트리(Photogrametry) 방식 및 뎁스맵(depthmap) 기반으로 생성되는 것으로서, 상기 형상모델의 촬영이미지가 생성되는 단계; 상기 촬영이미지로부터 이미지-포인트클라우드(point cloud)가 생성되는 단계; 및 상기 이미지-포인트클라우드가 메쉬(mesh)로 변환되는 단계;를 포함하여 생성되는 것을 포함할 수 있다.
Bibliography:Application Number: KR20220060665