edge extraction from 3D point cloud
显示 更早的评论
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?
4 个评论
Anton Semechko
2018-7-10
How big is the point cloud (i.e., how many point samples)? And do you know if the points have been assigned normals by the scanner?
Satarupa Khamaru
2018-7-10
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
Satarupa Khamaru
2018-7-11
回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Process Point Clouds 的更多信息
2018-7-10
2018-7-11
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
