Find small Point Cloud in large one
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After photogrammetry I have reference point cloud room.ply. Is it possible to find a location of object (small cloud) in a reference cloud?
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John D'Errico
on 17 Feb 2020
Learn to either edit your questions, or add a comment. There is no need to use answers to add information.
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With "pcregistericp" it is possible to localize a small PointCloud cropped from large one. It seems that ICP algorithm uses Locations and denies Color vectors. Correct me if I'm wrong.
Answers (1)
Sai Bhargav Avula
on 19 Feb 2020
Hi,
pcregistericp returns the transformation between the point clouds.
To find the location of an object in the point cloud, first step is to segment out the object in the point which altogether a different problem and dependent of the type of the object. Functions like pcfitplane, pcfitshpere, and pcfitcylinder help in detecting object of shapes such as plane, sphere, or cylinder respectively.
Also have a look at the following example which segments and tracks the vehicle from the lidar point cloud, few functionalities can be useful for your purpose .
Hope this helps
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