Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Development of 3-D Stereo PIV by Homogeneous Coordinate System

호모지니어스 좌표계를 이용한 3차원 스테레오 PIV 알고리듬의 개발

  • Published : 2003.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

A process of 3-D particle image velocimetry, called here, as '3-D stereo PIV' was developed for the measurement of an illuminated slied section field of 3-D complex flows. The present method includes modeling of camera by a calibrator based on the homogeneous coordinate system, transfromation of the oblique-angled image to the right-angled image, identification of 2-D velocity vectors by 2-D cross-correlation equation, stereo matching of 2-D velocity vectors of two cameras, accurate calculation of 3-D velocity vectors by homogeneous coordinate system, removal of error vectors by a statistical method followed by a continuity equation criterior, and finally 3-D animation as the post processing. An experimental system was also used for the application of the proposed method. Three analog CCD cameras and an Argon-Ion Laser(300mW) for illumination were adopted to capture the wake flow behind a bluff obstacle.

Keywords

References

  1. Kim, Y. H., 1996, 'A Study on PIV Measurement by Correlation Method,' Master Thesis of Korea Maritime University.
  2. Kobayashi, T., Saga, T. and Sekimoto, K., 1989, 'Velocity Measurement of Three-Dimensional Flow around Rotating Parallel Disks by Digital Image Processing,' ASME FED-Vol. 85, pp. 29-36
  3. Kasagi, N. and Nishino, K., 1991, 'Probing Turbulence with Three Dimensional Particle Tracking Velocimetry,' Exp. Thermal and Fluid Sci., Vol. 4, pp. 601-612 https://doi.org/10.1016/0894-1777(91)90039-T
  4. Kim, M.Y. and Lee, Y.H., 2001, 'Development of High-resolution 3-D PIV Algorithm by Cross-correlation,' Pro. of the KSME Fall Annual Meeting B, pp. 410-416
  5. Kim, M.Y., Choi, J. W, and Lee, Y.H., 2002, 'Development and Application of High-resolution 3-D Volume PIV System by Cross-correlation,' Proceeding of the 2nd National Congress on Fluids Engineering, pp. 507-510
  6. Arroyo, M. P. and Greated, C.A., 1991, 'Stereoscopic Particle Image Velocimetry,' Meas. Sci. Tech. 2, pp. 1181-1186 https://doi.org/10.1088/0957-0233/2/12/012
  7. Lawson, N.J. and Wu, J., 1997, 'Three-dimensional Particle Image Velocimetry: Experimetal Error Analysis of a Digital Angular Stereoscopic System,' Measurement Science & Technology, Vol. 8, No. 12, pp. 1455-1464 https://doi.org/10.1088/0957-0233/8/12/009
  8. Schenk T. and Toth C. K., 1992, 'Computer Vision and Digital Photo-grammetry,' ITC Journal, pp. 34-38
  9. Moon, B.S. 1993, 'A Study on the Geometric Correlation of a CCD Camera Scanner using the Exterior Orientation Parameters,' Master Thesis of Gyeong Sang National University
  10. EI-Hakim, S.F., 1986, 'Real Time Image Metrology with CCD Cameras,' Photogrammertic Enginerring & Remote Sensing 52, pp. 1757-1766
  11. Lee, K. S. 1999, 'Numerical Methods for Engineers,' Won-Hwa, pp. 66-69, pp. 259-275
  12. Schenk T. and Toth C. K., 1992, 'Computer Vision and Digital Photo-grammetry,' ITC Journal, pp. 34-38
  13. Schenk T. and Toth C. k., 1992, 'Conceptual Issues on Softcopy Photo-grammetric Workstations,' PE&RS, Vol. 58, No. 1, January, pp. 101-110
  14. Gerara Medioni and Ramakant Nevatia, 1982, 'Segment-Based Stereo Matching, Computer Vision,' Graphics and Image Processing, Vol. 3, pp. 12-18