How to get the closest point to the camera from a point cloud?

[Luclaft]

Checklist

• I have searched for similar issues.
• For Python issues, I have tested with the latest development wheel.
• I have checked the release documentation and the latest documentation (for master branch).

My Question

Hello,

I'm working on an Open3D project with a RealSense camera, Open3D gives me a rendering in real time of the scene that the camera sees with PointCloud.
Now I would like to highlight the nearest point of the points cloud.
Can you help me please?

[ssheorey]

I think you are looking for nearest neighbor search.

http://www.open3d.org/docs/latest/python_api/open3d.geometry.KDTreeFlann.html#open3d.geometry.KDTreeFlann.search_knn_vector_3d