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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 10 — Apr. 1, 2009
  • pp: D36–D44

Extraction of near-axis scattered light for transillumination imaging

Kazuto Takagi, Yuji Kato, and Koichi Shimizu  »View Author Affiliations


Applied Optics, Vol. 48, Issue 10, pp. D36-D44 (2009)
http://dx.doi.org/10.1364/AO.48.000D36


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Abstract

To suppress the scattering effect in transillumination imaging, a technique was developed to extract a near-axis scattered light (NASL) component from diffused light through a scattering medium. A diffuser is inserted between the light source and the incident surface of a scattering medium. We can extract the NASL component by subtracting the light intensity at the output surface with a diffuser from that without a diffuser. The principle to determine the subtraction weight was presented. In experiments using model phantoms of mammalian tissue, the proposed technique’s effectiveness was verified. The cross-section of the propagation area of scattered light was confined to an 8% area around the optical axis of the incident light beam. The usefulness of this technique was demonstrated by transillumination imag ing of the blood column through a diffuse medium.

© 2009 Optical Society of America

OCIS Codes
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.5280) Medical optics and biotechnology : Photon migration
(170.7050) Medical optics and biotechnology : Turbid media

History
Original Manuscript: July 17, 2008
Revised Manuscript: November 24, 2008
Manuscript Accepted: November 29, 2008
Published: January 9, 2009

Virtual Issues
Vol. 4, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Kazuto Takagi, Yuji Kato, and Koichi Shimizu, "Extraction of near-axis scattered light for transillumination imaging," Appl. Opt. 48, D36-D44 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-10-D36


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