Ms. Hong Yu Liang Profile

Hong Yu Liang

at National Space Science Ctr CAS

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Proceedings Article | 27 March 2022 Paper

Underwater imaging based on time-of-flight cameras

Hong Yu Liang, Yu Lin Cui, Yan Qiu Wang, Fu Zheng, Xi Hao Chen, Zhi Bin Sun

Proceedings Volume 12169, 121696V (2022) https://doi.org/10.1117/12.2624837

KEYWORDS: Image processing, Underwater imaging, Time of flight cameras, Cameras, Light scattering, Scattering, Imaging systems

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Underwater imaging plays an important role in marine geological exploitation, resource exploitation, ecological research and many other fields. Due to the influence of complex underwater environment, the underwater images have some degradation problems, such as low contrast, high scattering noise and so on. Therefore, the improvement of underwater imaging quality is of great significance in any actual application. In this paper, an imaging experiment for the underwater targets is performed by utilizing a time-of-flight (TOF) camera combining with an underwater physical imaging model and an image enhancement method, where the advantage of the TOF camera directly obtaining the depth map can be full taken to calculate the unknown parameters in the underwater physical imaging model. The results show that the better TOF underwater images can be achieved, which can be verified in the feature point matching. Compared with other imaging systems, the TOF underwater imaging method proposed here has much better characteristics in high anti-jamming capability, high sensitivity, all-weather operation and so on.

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