Underwater optical imaging: Key technologies and applications review

Y Shen, C Zhao, Y Liu, S Wang, F Huang - IEEE Access, 2021 - ieeexplore.ieee.org
The challenges associated with acquiring the clear images of objects in underwater
environment are difficult to overcome due to the absorptive and scattering nature of …

Multi-pulse time delay integration method for flexible 3D super-resolution range-gated imaging

W Xinwei, L Youfu, Z Yan - Optics express, 2015 - opg.optica.org
Constructing flexible regular-shaped range-intensity profiles by the convolution of illuminator
laser pulse and sensor gate pulse is crucial for 3D super-resolution range-gated imaging …

Deblurring methods for underwater 2D and 3D range-gated imaging

W Xinwei, S Liang, W Minmin, Y Yuqing, Z Yan - Infrared and Laser …, 2020 - irla.cn
Compared with traditional underwater cameras, the detection distance of underwater range-
gated imaging can be increased by 2-3 times. Furthermore, based on this technology, fast …

Lower-upper-threshold correlation for underwater range-gated imaging self-adaptive enhancement

L Sun, X Wang, X Liu, P Ren, P Lei, J He, S Fan… - Applied …, 2016 - opg.optica.org
In underwater range-gated imaging (URGI), enhancement of low-brightness and low-
contrast images is critical for human observation. Traditional histogram equalizations over …

Binning-based local-threshold filtering for enhancement of underwater 3D gated range-intensity correlation imaging

Y Yang, X Wang, L Sun, X Zhong, P Lei, J Chen… - Optics …, 2021 - opg.optica.org
3D gated range-intensity correlation imaging (GRICI) can reconstruct a 3D scene with high
range resolution in real time. However, in the applications of underwater range-gated …

[PDF][PDF] 水下二维及三维距离选通成像去噪技术研究

王新伟, 孙亮, 王敏敏, 杨于清, 周燕 - 红外与激光工程, 2020 - researching.cn
相比传统水下摄像机, 水下距离选通成像的作用距离可提高两三倍, 同时基于该技术可实现快速
高分辨率三维成像, 在水底详查. 避障导航. 海洋科学研究. 矿藏开发等方面具有广泛应用前景 …

Underwater 3D triangular range-intensity correlation imaging beyond visibility range(invited)

W Xinwei, S Liang, L Pingshun, F Songtao, D Han… - Infrared and Laser …, 2018 - irla.cn
Underwater 3D triangular range-intensity correlation imaging (RICI) is a novel scannerless
3D imaging technique beyond underwater visibility range, and can fill the current gap …

Three-dimensional laser-gated viewing with error-free coding

M Laurenzis, E Bacher - Optical Engineering, 2018 - spiedigitallibrary.org
Until now, coding of range gates suffers from a nonlinear error in erroneous coding
sequences. It is shown that the use of codes based on Hamiltonian paths eliminates …

Underwater three-dimensional range-gated laser imaging based on triangular-range-intensity profile spatial-correlation method

X Wang, X Liu, P Ren, L Sun, S Fan… - Optoelectronic …, 2016 - spiedigitallibrary.org
Underwater 3D range-gated imaging can extend the detection range over underwater stereo
cameras, and also has great potentials in real-time high-resolution imaging than 3D laser …

Active-imaging-based underwater navigation

D Monnin, G Schmitt, C Fischer… - … and Applications IX, 2015 - spiedigitallibrary.org
Global navigation satellite systems (GNSS) are widely used for the localization and the
navigation of unmanned and remotely operated vehicles (ROV). In contrast to ground or …