edge extraction from 3D point cloud

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Satarupa Khamaru
Satarupa Khamaru 2018-7-10
评论： Satarupa Khamaru 2018-7-11
Hi, I have a point cloud data in .txt file. I would like to extract straight lines from the point cloud and want to plot them. Could you please assist?
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Anton Semechko
Anton Semechko 2018-7-10
The reason I was asking is because it is much easier to identify geometric features (e.g., line segments) from meshes than point clouds; and normals can facilitate surface reconstruction. However, there are methods that can extract feature lines directly from point clouds (e.g., see [1] and references therein). Unfortunately, I do not have any first hand experience implementing these methods or know of any open-source implementations. I can help you with surface reconstruction, if that's the route you want to go.
[1] Lin et al., 2015, 'Line segment extraction for large scale unorganized point clouds', ISPRS Journal of Photogrammetry and Remote Sensing

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