Advances and perspectives in bathymetry by airborne lidar

Guoqing Zhou; Chenxi Wang; Mingyan Li; Yuefeng Wang; Siqi Ye; Caiyun Han

doi:10.1117/12.2207641

9 December 2015 Advances and perspectives in bathymetry by airborne lidar

Guoqing Zhou, Chenxi Wang, Mingyan Li, Yuefeng Wang, Siqi Ye, Caiyun Han

Proceedings Volume 9808, International Conference on Intelligent Earth Observing and Applications 2015; 98082K (2015) https://doi.org/10.1117/12.2207641
Event: International Conference on Intelligent Earth Observing and Applications, 2015, Guilin, China

Abstract

In this paper, the history of the airborne lidar and the development stages of the technology are reviewed. The basic principle of airborne lidar and the method of processing point-cloud data were discussed. At present, single point laser scanning method is widely used in bathymetric survey. Although the method has high ranging accuracy, the data processing and hardware system is too much complicated and expensive. For this reason, this paper present a kind of improved dual-frequency method for bathymetric and sea surface survey, in this method 176 units of 1064nm wavelength laser has been used by push-broom scanning and due to the airborne power limits still use 532nm wavelength single point for bathymetric survey by zigzag scanning. We establish a spatial coordinates for obtaining the WGS-84 of point cloud by using airborne POS system.

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Guoqing Zhou, Chenxi Wang, Mingyan Li, Yuefeng Wang, Siqi Ye, and Caiyun Han "Advances and perspectives in bathymetry by airborne lidar", Proc. SPIE 9808, International Conference on Intelligent Earth Observing and Applications 2015, 98082K (9 December 2015); https://doi.org/10.1117/12.2207641

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KEYWORDS

Clouds

LIDAR

Airborne laser technology

Data processing

Image segmentation

Data modeling

3D modeling

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