期刊
OPTICS COMMUNICATIONS
卷 552, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.optcom.2023.130106
关键词
Underwater imaging; Single -pixel imaging; Unet plus plus; Low sampling
类别
Traditional imaging techniques are ineffective in achieving clear underwater imaging due to the presence of scattering media. Single-pixel imaging (SPI) system based on Unet++ offers a solution for reconstructing high-quality images in highly turbid water environments.
Underwater environments contain significant scattering media, characterized by complex distributions of refractive index and reflectance within. These properties cause light to deviate from its original propagation direction and decrease the signal-to-noise ratio during it passes through the scattering media. Consequently, traditional imaging techniques are difficult to achieve clear underwater imaging. Single-pixel imaging (SPI) offers higher sensitivity and the ability to be imaged in extremely low-light conditions compared to traditional imaging methods, and it provides significant advantages for underwater imaging. This paper proposes a SPI system based on Unet++ that can reconstruct high-quality images under the low sampling rate in highly turbid water environments. Numerical simulations and physical experiments demonstrate that our approach can still achieve clear image reconstruction at a sampling rate of 3.125 % under the turbidity level of 80 NTU compared with other methods. Additionally, the network exhibits strong generalization capabilities, and our approach holds the capability to reconstruct high-quality images under low sampling in high turbidity underwater conditions.
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