Point Cloud Sampling by Regular Distance

1 次查看（过去 30 天）
Focal
Focal 2020-3-19
编辑： Sanjana 2024-6-18
Recently I had implment findNearestNeighbors from matlab toolbox. But instead of searching by K — Number of nearest neighbors, can it be specific distance from the query point? Like for example export the points 1cm apart from query point for individually compare with best fit plane?
Another question is that if I need to loop through every point of the point cloud to do the query. Is there any kd/octree operation needed? I can't imagine how matlab is running 10million of loop and do plane fitting afterwards.
Thanks guys
  3 个评论
显示 1更早的评论
John D'Errico
John D'Errico 2020-3-19
what question is there in this about MATLAB?
Focal
Focal 2020-3-20
Wondering if there are any methods to find point cloud's nearest neighbour by a certain dimensions. Such as 1cm instead of number of nearest neighbour.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Sanjana
Sanjana 2024-6-10
编辑：Sanjana 2024-6-18
Hi Focal,
I understand that you are looking for functions to find "nearest neighbours" in a pointCloud at certain distance from a point.
You can use the "findNeighboursinRadius" function to find indices of the points at a certain distance from a point, and then use "select" function to select obtained points in the input pointCloud.
Refer to the following example, for more information
https://www.mathworks.com/help/vision/ref/pointcloud.findneighborsinradius.html#buph2h4-1_sep_mw_4476dfe4-e1da-412c-87dc-f1f2d87d1a6e
Hope this helps!

类别

在 Help Center 和 File Exchange 中查找有关 Point Cloud Processing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by