Laser & Optoelectronics Progress, Volume. 54, Issue 12, 122802(2017)
Correction and Normalization of Multi-Scan Terrestrial Three-Dimensional Laser Scanning Intensity
Current point cloud intensity correction is confined to single scan station. In order to solve this problem, we propose a histogram equalization method for multi-scan intensity based on Gaussian mixture model. Firstly, the range-intensity and incidence angle-intensity correction models are used to correct the intensity for a single scan station. Then Gaussian mixture model is used to fit the histogram of intensity distribution after correction and segment the histogram. Finally, normalization of multi-scan intensity is achieved through sub-histogram matching. The experiment results indicate that the proposed method can not only correct the intensity of a single scan station efficiently, but also improve the inconsistence among different scan stations.
Get Citation
Copy Citation Text
Li Quan, Cheng Xiaojun, Tian Rui, Yang Zexin. Correction and Normalization of Multi-Scan Terrestrial Three-Dimensional Laser Scanning Intensity[J]. Laser & Optoelectronics Progress, 2017, 54(12): 122802
Category: Remote Sensing and Sensors
Received: Jul. 3, 2017
Accepted: --
Published Online: Dec. 11, 2017
The Author Email: Quan Li (329yvonnelee@tongji.edu.cn)