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

doi:10.1117/12.2624837

27 March 2022 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, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121696V (2022) https://doi.org/10.1117/12.2624837
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

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.

Citation Download Citation

Hong Yu Liang, Yu Lin Cui, Yan Qiu Wang, Fu Zheng, Xi Hao Chen, and Zhi Bin Sun "Underwater imaging based on time-of-flight cameras", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121696V (27 March 2022); https://doi.org/10.1117/12.2624837

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