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Real-time reconstruction of wave field in laboratory based on binocular stereo vision
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De-yu LI1, Long-fei XIAO1, 2, Han-di WEI1, 2
Journal of Ship Mechanics | 2024, 28(10) : 1463 - 1471
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Journal of Ship Mechanics | 2024, 28(10): 1463-1471
• Hydrodynamics •
Real-time reconstruction of wave field in laboratory based on binocular stereo vision
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De-yu LI1, Long-fei XIAO1, 2, Han-di WEI1, 2
Affiliations
  • 1.State Key Laboratory and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2.SJTU Yazhou Bay Institute of Deepsea Sci-Tech, Sanya 572024, China
Published: 2024-10-20 doi: 10.3969/j.issn.1007-7294.2024.10.001
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The accurate measurement of wave evolution is fundamental for the hydrodynamic studies of marine structures. An image-based method was proposed to measure waves in the laboratory based on binocular stereo vision. The light foam particles were used as trackers to mark wave surface for obtaining the wave images with sufficient textures. The images were rectified based on epipolar constraint, and threshold segmentation was used to avoid the interference of uneven light and bottom reflection. A stereo matching algorithm with GPU acceleration was used to achieve the real-time matching of wave images, obtaining the point cloud and mesh of the wave surface. Through the reconstruction of the image sequences, the wave time series, wave heights and periods were extracted. They were then compared with the measurements by wave probes, showing great agreements. The results indicate that the proposed method can accurately measure the 3D wave field in the laboratory, capturing the instantaneous evolution of wave and providing real-time monitoring.

wave measurement  /  real-time 3D reconstruction  /  binocular stereo vision  /  stereo matching  /  image processing
De-yu LI, Long-fei XIAO, Han-di WEI. Real-time reconstruction of wave field in laboratory based on binocular stereo vision[J]. Journal of Ship Mechanics, 2024 , 28 (10) : 1463 -1471 . DOI: 10.3969/j.issn.1007-7294.2024.10.001
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Year 2024 volume 28 Issue 10
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Article Info
doi: 10.3969/j.issn.1007-7294.2024.10.001
  • Receive Date：2024-04-26
  • Online Date：2026-03-26
  • Published：2024-10-20
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  • Received：2024-04-26
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    1.State Key Laboratory and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    2.SJTU Yazhou Bay Institute of Deepsea Sci-Tech, Sanya 572024, China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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