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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 2 — Feb. 10, 2009

Image contrast enhancement in angular domain optical imaging of turbid media

Fartash Vasefi, Bozena Kaminska, Glenn H. Chapman, and Jeffery J. L. Carson  »View Author Affiliations


Optics Express, Vol. 16, Issue 26, pp. 21492-21504 (2008)
http://dx.doi.org/10.1364/OE.16.021492


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Abstract

Imaging structures within a turbid medium using Angular Domain Imaging (ADI) employs an angular filter array to separate weakly scattered photons from those that are highly scattered. At high scattering coefficients, ADI contrast declines due to the large fraction of non-uniform background scattered light still within the acceptance angle. This paper demonstrates various methods to enhance the image contrast in ADI. Experiments where a wedge prism was used to deviate the laser source so that scattered photons could be imaged and subtracted from the image obtained by standard ADI provided the greatest improvement in image contrast.

© 2008 Optical Society of America

OCIS Codes
(120.1680) Instrumentation, measurement, and metrology : Collimation
(110.0113) Imaging systems : Imaging through turbid media
(080.1238) Geometric optics : Array waveguide devices
(110.5405) Imaging systems : Polarimetric imaging

ToC Category:
Imaging Systems

History
Original Manuscript: September 9, 2008
Revised Manuscript: October 30, 2008
Manuscript Accepted: December 9, 2008
Published: December 15, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Fartash Vasefi, Bozena Kaminska, Glenn H. Chapman, and Jeffrey J. Carson, "Image contrast enhancement in angular domain optical imaging of turbid media," Opt. Express 16, 21492-21504 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-16-26-21492


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