2024 Volume 80 Issue 22 Article ID: 23-22024
In recent years, measurement of 3D point clouds using Mobile Mapping Systems (MMS) has become popular. There are two types of laser scanner measurement methods: Time-of-Flight (ToF) and Phase Shift (PS). Existing studies have shown that the PS laser scanner is more accurate than the ToF. On the other hand, the PS method sometimes generates peculiar noise when the reflection intensity is high, such as in the case of a sign, and the shape of the sign may not be accurately determined. Therefore, we used an MMS equipped with a PS laser scanner to clarify the noise generated by the reflection and material conditions at each angle of incidence of the laser on target plates of different colors and surface materials, and investigated how to deal with this noise. As a result, it was shown that the measurement at an angle of incidence 60° was suit for scanning for both paint-coated and reflective materials.
