Speckle interferometry - Noise reduction by correlation fringe averaging

Details Speckle interferometry - Noise reduction by correlation fringe averaging Speckle interferometry - Noise reduction by correlation fringe averaging

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apopt..31.2412h&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 31, no. 14, May 10, 1992, p. 2412-2414. Research supported by Lulea University.

Physics

Optics

6

Diffraction Patterns, Noise Reduction, Spatial Filtering, Speckle Interferometry, Displacement Measurement, Plane Strain, Signal To Noise Ratios, Vibration Measurement

Scientific paper

Attention is given to a method for noise reduction in double-exposure speckle interferometry that is based on averaging independent spatially filtered correlation fringe patterns. The method is of particular interest for measuring dynamic displacement fields for which recent developments in electronic speckle pattern interferometry such as phase stepping and speckle averaging are inappropriate. The technique is illustrated with measurements of in-plane displacements that are due to impact loading of a stationary crack. The case of two speckle patterns recorded on the same piece of film, in which one pattern is shifted by a few speckle diameters relative to the other, is considered.

Affiliated with

Also associated with

No associations

Rating

Speckle interferometry - Noise reduction by correlation fringe averaging does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Speckle interferometry - Noise reduction by correlation fringe averaging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speckle interferometry - Noise reduction by correlation fringe averaging will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1515130