Problems and solutions encountered in laser point cloud data processing

Jun 29, 2023

When using a 3D laser scanner to scan a target, it will be affected by the scanning equipment, surrounding environment, human disturbance, target characteristics, etc., making the point cloud data inevitably have some noise, resulting in the data not being able to correctly express the spatial position of the scanned object.

Noise points are mainly divided into three categories:

1. Noise generated when the reflection signal is weak due to the surface material of the object or the lighting environment;

2. Noise caused by people, vehicles or other objects passing between the scanning instrument and the object during the scanning process;

3. Systematic errors and random errors caused by the measurement equipment itself, such as scanner accuracy, camera resolution, etc.