• Infrared and Laser Engineering
  • Vol. 49, Issue 2, 203005 (2020)
Song Hong1, Wan Qixin1, Wu Chaopeng1, Shentu Yichun1, Wang Wenxin1, Yang Ping2, Jia Wenjuan3, Li Hongzhi3, Huang Hui1, Wang Hangzhou1, and Zhan Shuyue1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
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    DOI: 10.3788/irla202049.0203005 Cite this Article
    Song Hong, Wan Qixin, Wu Chaopeng, Shentu Yichun, Wang Wenxin, Yang Ping, Jia Wenjuan, Li Hongzhi, Huang Hui, Wang Hangzhou, Zhan Shuyue. Development of an underwater spectral imaging system based on LCTF[J]. Infrared and Laser Engineering, 2020, 49(2): 203005 Copy Citation Text show less

    Abstract

    Underwater spectral imaging technology plays an important role in underwater object recognition and ocean ecological monitoring. An underwater spectral imaging system using liquid crystal tunable filter (LCTF) was designed based on the actual engineering environment. The system obtained spectral information by using LCTF as a filter structure. Under the illumination of a wide-spectrum LED, a pool experiment was performed to obtain 31 channel spectral images of the target between 400 and 700 nm. The spectral information of objects with similar colors under water was discussed and analyzed. The results show that the system is helpful for underwater target recognition and classification. In-situ observation of corals in the sea trial successfully obtained underwater spectral images of coral reefs. The system is expected to be applied to ocean remote sensing, ocean ecological environment monitoring and other fields.
    Song Hong, Wan Qixin, Wu Chaopeng, Shentu Yichun, Wang Wenxin, Yang Ping, Jia Wenjuan, Li Hongzhi, Huang Hui, Wang Hangzhou, Zhan Shuyue. Development of an underwater spectral imaging system based on LCTF[J]. Infrared and Laser Engineering, 2020, 49(2): 203005
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