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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 20 — Jul. 10, 1998
  • pp: 4504–4509

Generalized spin filtering and an improved derivative-sign binary image method for the extraction of fringe skeletons

Qifeng Yu, Xiaolin Liu, and Xiangyi Sun  »View Author Affiliations


Applied Optics, Vol. 37, Issue 20, pp. 4504-4509 (1998)
http://dx.doi.org/10.1364/AO.37.004504


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Abstract

Generalized spin filters, including several directional filters such as the directional median filter and the directional binary filter, are proposed for removal of the noise of fringe patterns and the extraction of fringe skeletons with the help of fringe-orientation maps (FOM’s). The generalized spin filters can filter off noise on fringe patterns and binary fringe patterns efficiently, without distortion of fringe features. A quadrantal angle filter is developed to filter off the FOM. With these new filters, the derivative-sign binary image (DSBI) method for extraction of fringe skeletons is improved considerably. The improved DSBI method can extract high-density skeletons as well as common density skeletons.

© 1998 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(120.2440) Instrumentation, measurement, and metrology : Filters
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

History
Original Manuscript: November 18, 1997
Revised Manuscript: April 1, 1998
Published: July 10, 1998

Citation
Qifeng Yu, Xiaolin Liu, and Xiangyi Sun, "Generalized spin filtering and an improved derivative-sign binary image method for the extraction of fringe skeletons," Appl. Opt. 37, 4504-4509 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-20-4504


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References

  1. Q. Yu, “Spin filtering processes and automatic extraction of fringe center lines in the digital image of interferometric fringes,” Appl. Opt. 27, 3782–3784 (1988). [CrossRef] [PubMed]
  2. H. Winter, S. Unger, W. Osten, “The application of adaptive and anisotropic filtering for the extraction of fringe pattern skeletons,” in Fringe ’89: Automatic Processing of Fringe Patterns, W. Osten, R. J. Pryputniewicz, eds. (Akademie-Verlag, Berlin, 1989), pp. 158–166.
  3. Q. Yu, X. Liu, K. Andresen, “New spin filters for interferometric fringe patterns and grating patterns,” Appl. Opt. 33, 3705–3711 (1994). [CrossRef] [PubMed]
  4. Q. Yu, “Calculation of strain from a single moiré by filtering and normalizing an interferogram,” Ph.D. dissertation (Bremen University, Germany, 1996).
  5. T. Kreis, “Digital holographic interference-phase measurement using the Fourier transform method,” J. Opt. Soc. Am. A 3, 847–855 (1986). [CrossRef]
  6. Q. Yu, K. Andresen, W. Osten, W. Jueptner, “Noise-free normalized fringe patterns and local pixel transform for strain extraction,” Appl. Opt. 35, 3783–3790 (1996). [CrossRef] [PubMed]
  7. K. Creath, “Phase-measurement interferometry techniques,” in Progress in Optics, E. Wolf, ed. (North-Holland, Amsterdam, 1988), Vol. 26, pp. 351–393. [CrossRef]
  8. Q. Yu, K. Andresen, “Fringe-orientation maps and 2-D derivative-sign binary image methods for extraction of fringe skeletons,” Appl. Opt. 33, 6873–6878 (1994). [CrossRef] [PubMed]

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