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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 4 — Feb. 1, 2014
  • pp: 727–730

Real-time edge detection by cyclic-path polarization interferometer

Sonali Chakraborty and K. Bhattacharya  »View Author Affiliations


Applied Optics, Vol. 53, Issue 4, pp. 727-730 (2014)
http://dx.doi.org/10.1364/AO.53.000727


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Abstract

In a triangular path cyclic interferometer employing a polarizing beam splitter (PBS), the two counterpropagating beams are orthogonally polarized. A sample placed almost equidistant from the PBS is imaged by a lens placed in the path of the emerging beams so that two defocused images of the sample are recorded on a CCD. Using a linear polarizer in the path of the orthogonally polarized imaging beams, it is possible to achieve amplitude subtraction between the two images, resulting in an edge-enhanced image of the sample. The proposed real-time edge-enhancement technique is experimentally demonstrated.

© 2014 Optical Society of America

OCIS Codes
(100.2980) Image processing : Image enhancement
(100.3175) Image processing : Interferometric imaging

ToC Category:
Image Processing

History
Original Manuscript: December 24, 2013
Revised Manuscript: July 29, 2013
Manuscript Accepted: August 12, 2013
Published: January 30, 2014

Citation
Sonali Chakraborty and K. Bhattacharya, "Real-time edge detection by cyclic-path polarization interferometer," Appl. Opt. 53, 727-730 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-4-727


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