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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 25 — Dec. 10, 2007
  • pp: 16400–16412

Linear 3D reconstruction of time-domain diffuse optical imaging differential data: improved depth localization and lateral resolution

Juliette Selb, Anders M. Dale, and David A. Boas  »View Author Affiliations


Optics Express, Vol. 15, Issue 25, pp. 16400-16412 (2007)
http://dx.doi.org/10.1364/OE.15.016400


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Abstract

We present 3D linear reconstructions of time-domain (TD) diffuse optical imaging differential data. We first compute the sensitivity matrix at different delay gates within the diffusion approximation for a homogeneous semi-infinite medium. The matrix is then inverted using spatially varying regularization. The performances of the method and the influence of a number of parameters are evaluated with simulated data and compared to continuous-wave (CW) imaging. In addition to the expected depth resolution provided by TD, we show improved lateral resolution and localization. The method is then applied to reconstructing phantom data consisting of an absorbing inclusion located at different depths within a scattering medium.

© 2007 Optical Society of America

OCIS Codes
(100.3190) Image processing : Inverse problems
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.5280) Medical optics and biotechnology : Photon migration
(170.6920) Medical optics and biotechnology : Time-resolved imaging
(170.6960) Medical optics and biotechnology : Tomography

ToC Category:
Image Processing

History
Original Manuscript: July 31, 2007
Revised Manuscript: September 21, 2007
Manuscript Accepted: September 25, 2007
Published: November 26, 2007

Virtual Issues
Vol. 3, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Juliette Selb, Anders M. Dale, and David A. Boas, "Linear 3D reconstruction of time-domain diffuse optical imaging differential data: improved depth localization and lateral resolution," Opt. Express 15, 16400-16412 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-25-16400


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