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Volume 26 Issue 1
Jan.  2000
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Journal of Beijing University of Aeronautics and Astronautics  > 2000  >  26(1): 79-82.
DUAN Li, KANG Qi, SHEN Gonget al. Image Processing Method of PIV Technique[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(1): 79-82. (in Chinese)
Citation: DUAN Li, KANG Qi, SHEN Gonget al. Image Processing Method of PIV Technique[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(1): 79-82. (in Chinese)
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Image Processing Method of PIV Technique

  • 1.

    Beijing University of Aeronautics and Astronautics,Dept. of Flight Vehicle Design and Applied Mechanics

  • 2. Chinese Academy of Sciences,Institute of Mechanics

  • Received Date: 04 Aug 1998
  • Publish Date: 31 Jan 2000
    Abstract
  • The image processing method of PIV was studied on the base of the image correlation theory in this paper. The simulated particle image displacement field was reconstructed. The reconstruction result of auto correlation and cross correlation , and the error of cross correlation were given. The difference of this two correlation method was analyzed. The cross correlation is a good method that can increase the PIV's accuracy, so the frame straddling technique is favorite to be developed for PIV measurement.

     

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    • References(1)
  • [1] Westerweel J, Dabiri D, Gharib M. The effect of a discrete window offset on the accuracy of cross-correlation analysis of digital PIV recordings[J]. Experiments in Fluids, 1997,23:20~28. [2]Keane R　D, Adrian R　J. Theory of cross-correlation analysis of PIV image[J]. J Appl Sci Res,1992,49:191~215． [3]Michael L　Jakobsen, William J　Hossack, Clive A　Greated． Particle image velocimetry analysis using an optically addressed spatial light modulator:effects of nonlinear transfer function[J].Applied Optics,1995,34(11):1757~1768. [4]Grant X　Wang． Directionally-unambiguous , digital particle image velocimetry studies using a image intensifier camera[J]. Experiments in Fluids, 1995, 18:358~362． [5]田村秀行．计算机图像处理技术[M]．北京:北京师范大学出版社,1988. [6]徐秉铮,欧阳景正．信号分析与相关技术[M]．北京:科学出版社,1981.
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