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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

3D differential phase-contrast microscopy with computational illumination using an LED array

Lei Tian, Jingyan Wang, and Laura Waller  »View Author Affiliations


Optics Letters, Vol. 39, Issue 5, pp. 1326-1329 (2014)
http://dx.doi.org/10.1364/OL.39.001326


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Abstract

We demonstrate 3D differential phase-contrast (DPC) microscopy, based on computational illumination with a programmable LED array. By capturing intensity images with various illumination angles generated by sequentially patterning an LED array source, we digitally refocus images through various depths via light field processing. The intensity differences from images taken at complementary illumination angles are then used to generate DPC images, which are related to the gradient of phase. The proposed method achieves 3D DPC with simple, inexpensive optics and no moving parts. We experimentally demonstrate our method by imaging a camel hair sample in 3D.

© 2014 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(170.6900) Medical optics and biotechnology : Three-dimensional microscopy
(110.1758) Imaging systems : Computational imaging

ToC Category:
Imaging Systems

History
Original Manuscript: December 3, 2013
Revised Manuscript: January 22, 2014
Manuscript Accepted: January 27, 2014
Published: February 28, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Lei Tian, Jingyan Wang, and Laura Waller, "3D differential phase-contrast microscopy with computational illumination using an LED array," Opt. Lett. 39, 1326-1329 (2014)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-39-5-1326


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