LiDAR is widely used in three dimensional （3D） remote sensing fields, and the 3D image could be plotted by laser points which are collected with LiDAR. However, the density of laser points is usually limited by operating height, laser frequency, scanning angle and scanning frequency. In order to improve the laser points density of LiDAR, the model of laser detection was built in the paper, and the principle of LiDAR detecting was analyzed. A demonstrating dual-channel LiDAR system with two isolated laser channel was designed to validate the improvement. The experiment showed an improvement in better resolution and wider detection region.
Science of Surveying and Mapping
3 D image
density of laser points