Sampling interval estimation for TLS point cloud

Version 1.0.1 (1.5 MB) by MAOLIN CHEN

Estimating sampling interval/ angular resolution for terrestrial laser scanning (TLS) data/point cloud.

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Updated 18 Feb 2022

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In TLS data/ point cloud, sampling interval or angular resolution is the angle between two horizontally or vertically adjacent laser beams. It has significant influence on point density, feature design and parameter setting in the post-processing of scanning data. This code estimates this parameter when it is unknown, which is the case for many TLS datasets.

Change the path of a txt point file in resolution_est.m to use it. Two small point cloud is also included for test.

Cite As

MAOLIN CHEN (2024). Sampling interval estimation for TLS point cloud (https://www.mathworks.com/matlabcentral/fileexchange/90282-sampling-interval-estimation-for-tls-point-cloud), MATLAB Central File Exchange. Retrieved April 25, 2024.

M. Chen, X. Zhang, X. Liu, C. Ji and L. Zhao, "Estimation of Sampling Interval in Terrestrial Laser Scanning Data with Neighboring Analysis," 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021, pp. 8061-8064, doi: 10.1109/IGARSS47720.2021.9554955.