Getting points from a particular section of point cloud data

How do I collect data from point cloud?

There are two primary tools you can use to capture a point cloud: laser scanners and photogrammetry.

1. Laser scanners. A laser scanner is a survey-grade system that includes a number of different sensors and technologies.
2. Photogrammetry. This is more a methodology than a specific type of tool.

What is point cloud mapping?

Point cloud mapping is a process in which a laser tracker locates several pre-designated points in a space and converts the information into a virtual map. For example, there may be a vertical building support close to where a new rotary dryer will be located.

Where can I find point cloud data?

The key factor in acquiring point cloud data is the access/visibility to scanned surfaces. In most cases, point clouds are obtained by visible access to real objects. This means that simply to cover all scanning positions takes time. Aligning laser scans taken from all these scanning positions can also be a problem.