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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 3, Iss. 3 — Aug. 3, 1998
  • pp: 104–110

Enhancement of laser CT image contrast by correction of artifacts due to surface effects

Y. Watanabe, T. Yuasa, T. Akatsuka, B. Devaraj, and H. Inaba  »View Author Affiliations

Optics Express, Vol. 3, Issue 3, pp. 104-110 (1998)

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Mismatched boundary conditions such as air-sample interface introduce artifacts that obscure internal information in the reconstructed laser computed tomographic (CT) images. Here, we demonstrate enhancement of target structure in the laser CT images by correcting the projection data using the experimentally determined angle dependence of sample surface attenuation. The images reconstructed with the corrected projection data are shown to have improved image contrast. Our proposed correction to laser CT reconstruction is effective for visualizing internal structure with small variations in the attenuation coefficients that would otherwise be masked by the dominant surface attenuation.

© Optical Society of America

OCIS Codes
(170.1650) Medical optics and biotechnology : Coherence imaging
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.6960) Medical optics and biotechnology : Tomography

ToC Category:
Research Papers

Original Manuscript: March 24, 1998
Revised Manuscript: March 7, 1998
Published: August 3, 1998

Yuuki Watanabe, Tetsuya Yuasa, T. Akatsuka, Balasigamani Devaraj, and Humio Inaba, "Enhancement of laser CT image contrast by correction of artifacts due to surface effects," Opt. Express 3, 104-110 (1998)

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