Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Development of Wave Height Field Measurement System Using a Depth Camera

깊이카메라를 이용한 파고장 계측 시스템의 구축

  • Kim, Hoyong (Department of Naval Architecture and Ocean Engineering, Chungnam National University) ;
  • Jeon, Chanil (Department of Health Sciences and Technology, Sungkyunkwan University) ;
  • Seo, Jeonghwa (Department of Naval Architecture and Ocean Engineering, Chungnam National University)
  • 김호용 (충남대학교 선박해양공학과) ;
  • 전찬일 (성균관대학교 융합의과학과) ;
  • 서정화 (충남대학교 선박해양공학과)
  • Received : 2021.07.20
  • Accepted : 2021.10.15
  • Published : 2021.12.20
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Abstract

The present study suggests the application of a depth camera for wave height field measurement, focusing on the calibration procedure and test setup. Azure Kinect system is used to measure the water surface elevation, with a field of view of 800 mm × 800 mm and repetition rate of 30 Hz. In the optimal optical setup, the spatial resolution of the field of view is 288 × 320 pixels. To detect the water surface by the depth camera, tracer particles that float on the water and reflects infrared is added. The calibration consists of wave height scaling and correction of the barrel distortion. A polynomial regression model of image correction is established using machine learning. The measurement results by the depth camera are compared with capacitance type wave height gauge measurement, to show good agreement.

Keywords

Acknowledgement

이 논문은 충남대학교 혁신지원사업(2019-2020)과 2021년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원(P0001968, 2021년 산업혁신인재성장지원사업)을 받아 작성되었습니다.

References

  1. Baek, G.D., Cheon, S.P., Kim, S.D. & Kim, S.S., 2011. Performance criterion-based polynomial calibration model for laser scan camera. Korean Institute of Intelligent Systems, 21(5), pp.555-563. https://doi.org/10.5391/JKIIS.2011.21.5.555
  2. Deems, J.S., Painter, T.H. & Finnegan, D.C., 2013. Lidar measurement of snow depth: a review. Journal of Glaciology, 59(215), pp.467-479. https://doi.org/10.3189/2013jog12j154
  3. Goo, J.S., Jo, H.J. & Lee, C.H., 1994. Dynamic response analysis of tension leg platforms in multi-directional irregular waves - Frequency domain-analysis. The Korean Society of Ocean Engineers, 8(1), pp.23-32.
  4. Jung, J.S., Cho, D.H., Hwang, J.K. & Cho, Y.S., 2004. Reflection of random waves propagating over rectangular submerged non-porous breakwaters. Journal of Korea Water Resources Association, 37(9), pp.729-736. https://doi.org/10.3741/JKWRA.2004.37.9.729
  5. Kim, D.J. et al., 2014. Effects of hull form variations on resistance and seakeeping performance of planing hulls with and without incoming regulars waves. Journal of the Society of Naval Architects of Korea, 51(5), pp.369-379. https://doi.org/10.3744/SNAK.2014.51.5.369
  6. Kim, J., Kim, H.S. & Kim, S.B., 1996. Development of a capacitance-type wave recorder for measuring real-time wave height based on microprocessor technique. Journal of Ocean Engineering and Technology, 10(3), pp.162-167.
  7. Kim, W.J., Van, S.H. & Kim, D.H., 2001. Measurement of flows around modern commercial ship models, Experiments in Fluids, 31, pp.567-578. https://doi.org/10.1007/s003480100332
  8. Lee, C.H., Choi, C.M., Ahn, J.Y. & Cho, I.H., 2013. Efficiency of wave absorption by the porous of "Taewoo" of Jeju in regular seaway. Journal of the Korean Society of Fisheries and Ocean Technology, 49(2), pp.144-152. https://doi.org/10.3796/KSFT.2013.49.2.144
  9. Metcalf, B., Longo, J., Ghosh, S. & Stern, F., 2006. Unsteady free-surface wave-induced boundary-layer separation for a surface-piercing NACA 0024 foil: Towing tank experiments. Journal of Fluids and Structures, 22(1), pp.77-98. https://doi.org/10.1016/j.jfluidstructs.2005.09.004
  10. Oh, J. et al., 2007. Development of algorithm for stereoscopic PIV using normalized cross-correlation. Journal of the Society of Naval Architects of Korea, 44(6), pp.579-589. https://doi.org/10.3744/SNAK.2007.44.6.579
  11. Park, D.M., Lee, J. & Kim, Y., 2014. Uncertainty study of added resistance experiment. Journal of the Society of Naval Architects of Korea, 51(5), pp.396-408. https://doi.org/10.3744/SNAK.2014.51.5.396
  12. Park, H.S., Sim, J.S., Yoo, J. & Lee, D.Y., 2011. The breaking wave measurement using terrestrial LIDAR: validation with field experiment on the Mallipo Beach. Journal of Coastal Research, 64, pp.1718-1721.
  13. Seo, J. et al., 2014. Uncertainty assessment of a towed underwater stereoscopic PIV system. Journal of the Society of Naval Architects of Korea, 51(4), pp.311-320. https://doi.org/10.3744/SNAK.2014.51.4.311
  14. Suh, K.D. & Ji, C.H., 2006. Reflection and transmission of regular waves by multiple-row curtainwall-pile breakwaters. Journal of Korean Society of Coastal and Ocean Engineers, 18(2), pp.97-101.
  15. Toselli, F., De Lillo, F., Onorato, M. & Boffetta, G., 2019. Measuring surface gravity waves using a Kinect sensor. European Journal of Mechanics - B/Fluids, 74, pp.260-264. https://doi.org/10.1016/j.euromechflu.2018.08.017
  16. Tolgyessy, M., Dekan, M., Chovanec, L'. & Hubinsky, P., 2021. Evaluation of the Azure Kinect and Its comparison to Kinect V1 and Kinect V2. Sensors, 21(2), Article No. 413.