Research on the underwater target imaging based on the streak tube laser lidar

Zihao Cui; Zhaoshuo Tian; Yanchao Zhang; Zongjie Bi; Gang Yang; Erdan Gu

doi:10.1117/12.2317049

5 March 2018 Research on the underwater target imaging based on the streak tube laser lidar

Zihao Cui, Zhaoshuo Tian, Yanchao Zhang, Zongjie Bi, Gang Yang, Erdan Gu

Proceedings Volume 10710, Young Scientists Forum 2017; 107103G (2018) https://doi.org/10.1117/12.2317049
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

A high frame rate streak tube imaging lidar (STIL) for real-time 3D imaging of underwater targets is presented in this paper. The system uses 532nm pulse laser as the light source, the maximum repetition rate is 120Hz, and the pulse width is 8ns. LabVIEW platform is used in the system, the system control, synchronous image acquisition, 3D data processing and display are realized through PC. 3D imaging experiment of underwater target is carried out in a flume with attenuation coefficient of 0.2, and the images of different depth and different material targets are obtained, the imaging frame rate is 100Hz, and the maximum detection depth is 31m. For an underwater target with a distance of 22m, the high resolution 3D image real-time acquisition is realized with range resolution of 1cm and space resolution of 0.3cm, the spatial relationship of the targets can be clearly identified by the image. The experimental results show that STIL has a good application prospect in underwater terrain detection, underwater search and rescue, and other fields.

Citation Download Citation

Zihao Cui, Zhaoshuo Tian, Yanchao Zhang, Zongjie Bi, Gang Yang, and Erdan Gu "Research on the underwater target imaging based on the streak tube laser lidar", Proc. SPIE 10710, Young Scientists Forum 2017, 107103G (5 March 2018); https://doi.org/10.1117/12.2317049

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