Proceesing techniques: image plane and Fourier plane.

Ronald Adrian

Research output: Contribution to journalArticlepeer-review


Statistical analysis of PIV image data can be performed by either image plane analysis or Fourier transform plane analysis of fringes. A detailed theoretical analysis of the interrogation procedure for images and fringes is presented. The two-dimensional spatial correlation of the images of particles in high image density PIV produces a function that determines the mean displacement of the images in an interrogation spot, and hence the mean fluid velocity in the volume. Similar results can be obtained from the 2-D Fourier transform of the Young's fringe pattern. Alternatively fringes can be dealt with directly. Maximum information is extracted from the fringes using the Fourier transform approach. (from authors' abstract)

Original languageEnglish (US)
Journal[No source information available]
StatePublished - Jan 1 1988
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering


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