High-resolution 3D range gated laser imaging for unmanned underwater vehicles

Xinwei Wang; Liang Sun; Pingshun Lei; Jianan Chen; Jun He; Yan Zhou

doi:10.1117/12.2601579

12 October 2021 High-resolution 3D range gated laser imaging for unmanned underwater vehicles

Xinwei Wang, Liang Sun, Pingshun Lei, Jianan Chen, Jun He, Yan Zhou

Proceedings Volume 11902, Real-time Photonic Measurements, Data Management, and Processing VI; 1190207 (2021) https://doi.org/10.1117/12.2601579
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

High-resolution 3D optical imaging is important for unmanned underwater vehicles (UUVs) in the applications of target detection and recognition, underwater engineering, automatic navigation, scientific research, and natural resources exploration. Compared with stereo camera and 3D laser scanning imaging, 3D range-gated imaging (3D RGI) has longer detection range and higher spatial resolution at the same time. This paper presents a survey on 3D range-gated imaging methods for underwater detection. Up to now, there are two main methods developed, including time slicing method and gated range intensity correlation method. The literature about 3D RGI has been reviewed in different detection applications for UUV. We also introduce our works in 3D gated range-intensity correlation imaging for fishing net detection and marine life in-situ detection. This paper is beneficial for the 3D RGI technique in underwater detection applications for UUV.

Citation Download Citation

Xinwei Wang, Liang Sun, Pingshun Lei, Jianan Chen, Jun He, and Yan Zhou "High-resolution 3D range gated laser imaging for unmanned underwater vehicles", Proc. SPIE 11902, Real-time Photonic Measurements, Data Management, and Processing VI, 1190207 (12 October 2021); https://doi.org/10.1117/12.2601579

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KEYWORDS

3D image processing

Cameras

Pulsed laser operation

3D acquisition

Gated imaging

Ocean optics

Stereoscopy

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