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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 12 — Dec. 1, 2008

Comparison of refraction information extraction methods in diffraction enhanced imaging

Chunhong Hu, Lu Zhang, Hui Li, and Shuqian Luo  »View Author Affiliations

Optics Express, Vol. 16, Issue 21, pp. 16704-16710 (2008)

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Diffraction enhanced imaging (DEI) is a powerful phase-sensitive technique that generates the improved contrast of weakly absorbing samples compared to conventional radiography. The x-ray refraction contrast of the sample is an important contrast in DEI, and it vastly exceeds the absorption contrast for weakly absorbing samples imaging, which makes it hold great promise for medical, biological and material applications. In order to effectively utilize the refraction contrast, the key procedure is first to obtain the refraction information expressed as the refraction image. By comparing the signal-to-noise ratio (SNR) of the refraction image, x-ray radiation dose of the sample and the range of obtained refraction angles, the different refraction information extraction methods are investigated in this paper, and the experimental results confirm the conclusion.

© 2008 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(120.5710) Instrumentation, measurement, and metrology : Refraction
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(340.6720) X-ray optics : Synchrotron radiation
(340.7440) X-ray optics : X-ray imaging

ToC Category:
Imaging Systems

Original Manuscript: July 24, 2008
Revised Manuscript: September 18, 2008
Manuscript Accepted: September 29, 2008
Published: October 6, 2008

Virtual Issues
Vol. 3, Iss. 12 Virtual Journal for Biomedical Optics

Chunhong Hu, Lu Zhang, Hui Li, and Shuqian Lo, "Comparison of refraction information extraction methods in diffraction enhanced imaging," Opt. Express 16, 16704-16710 (2008)

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