| Citation: | JIANG Zi-qi, LIU Xiao-mei, CAI Fu-hong, ZHANG Dian, CAI Wei-yu, LIU Hua. Imaging comparison experiment of an underwater imaging system with a semiconductor white laser, a monochromatic laser and an LED white light as the light source[J].Chinese Optics, 2023, 16(2): 466-478.doi:10.37188/CO.EN.2022-0012
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To solve the problems of short illumination distance and narrow spectral range in the current underwater detection technology, an underwater semiconductor white laser imaging system was established. The quality of the images captured by the system under different light sources and different conditions was studied. A white laser with a power of 220 mW and a color temperature of 6469 K synthesized by an RGB semiconductor laser is used as the underwater lighting source, which is respectively compared with three RGB monochromatic lasers and an LED white light source under different conditions. For these images, different algorithms are used to process, analyze and evaluate their quality. The results indicate that when the white laser is used as the underwater light source, the collected image is not only better than that with the LED white light source with respect to information detail and structural integrity, but also better than the monochrome laser in color reproduction of the target and the integrity of the edge feature information. The semiconductor white laser has the advantages of concentrated energy, strong color rendering, and high illuminance, and its light source performance can meet the requirements of underwater low-illumination imaging. With the same imaging system and imaging distance, images with stronger authenticity, better texture and more target feature information can be obtained.
| [1] |
YANG Y, ZHUANG S L, KAI B C. High brightness laser-driven white emitter for Etendue-limited applications[J].
Applied Optics, 2017, 56(30): 8321-8325.
doi:10.1364/AO.56.008321
|
| [2] |
CANTORE M, PFAFF N, FARRELL R M,
et al. High luminous flux from single crystal phosphor-converted laser-based white lighting system[J].
Optics Express, 2016, 24(2): A215-A221.
doi:10.1364/OE.24.00A215
|
| [3] |
田景玉. 高功率半导体 器外腔合束技术及白 研究[D]. 长春: 中国科学院大学(中国科学院长春光学精密机械与物理研究所), 2019.
TIAN J Y. Research on high power diode laser external cavity beam combination and white laser[D]. Changchun: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 2019. (in Chinese)
|
| [4] |
LV W ZH, LIU W Q, ZHANG D L. Colorimetric analysis of laser and LED hybrid projection sources[J].
Chinese Journal of Liquid Crystals and Displays, 2015, 30(2): 369-373. (in Chinese)
doi:10.3788/YJYXS20153002.0369
|
| [5] |
HE S L, LI SH, CHEN X,
et al. Application of hyperspectral imager and lidar in marine biological detection[J].
Infrared and Laser Engineering, 2021, 50(6): 20211033. (in Chinese)
doi:10.3788/IRLA20211033
|
| [6] |
TANG G B, ZHANG W, GUAN X W. Research on resolution automatic detection algorithm of underwater laser imaging system[J].
Ship Electronic Engineering, 2021, 41(10): 170-173,183. (in Chinese)
doi:10.3969/j.issn.1672-9730.2021.10.037
|
| [7] |
SUN P. Underwater optical imaging technology and application[J].
Scientific and Technological Innovation, 2021(16): 53-54. (in Chinese)
doi:10.3969/j.issn.1673-1328.2021.16.027
|
| [8] |
YE Q, FAN Y S, BIAN J T,
et al. Development of a green laser pumped by flash lamp applicable to underwater synchronous lightening[J].
Acta Photonica Sinica, 2018, 47(11): 1114004. (in Chinese)
doi:10.3788/gzxb20184711.1114004
|
| [9] |
LIANG H X, SHEN T H, WANG ZH Y,
et al. Research and design of underwater wireless optical communication system with dual light sources[J].
Infrared and Laser Engineering, 2021, 50(9): 20200445. (in Chinese)
doi:10.3788/IRLA20200445
|
| [10] |
ZHANG ZH, ZHANG X W, SHI S F,
et al. Underwater image restoration algorithm based on red and blue channel prior active light source polarization[J].
Computer Measurement & Control, 2022, 30(9). (in Chinese)
|
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