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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 35 — Dec. 10, 2005
  • pp: 7573–7580

Effect of source spectral shape on task-based assessment of detection and resolution in optical coherence tomography

A. Ceyhun Akcay, Eric Clarkson, and Jannick P. Rolland  »View Author Affiliations


Applied Optics, Vol. 44, Issue 35, pp. 7573-7580 (2005)
http://dx.doi.org/10.1364/AO.44.007573


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Abstract

We demonstrate the effect of the spectral shape of broadband light sources in a task-based approach for assessment of signal detection and resolution in optical coherence tomography. We define two binary tasks: The signal is either present or absent and the signal can be either resolved or not. In a transparent sample bounded by two uniform interfaces we study the minimum detectable change in the index of refraction as well as the minimum resolvable distance between the layers in correlation with the source spectral shape and power. Results show that the area under the receiver operating curve (AUC) for a signal-detection task is not affected by the shape of the spectrum but solely by its optical power, whereas spectral shaping has an effect, which we quantify, on the AUC for the resolution task. Moreover, the AUC is demonstrated in relation to the concept of system sensitivity for a signal-detection task.

© 2005 Optical Society of America

OCIS Codes
(000.5490) General : Probability theory, stochastic processes, and statistics
(030.6600) Coherence and statistical optics : Statistical optics
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: May 16, 2005
Revised Manuscript: August 5, 2005
Manuscript Accepted: August 6, 2005
Published: December 10, 2005

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

Citation
A. Ceyhun Akcay, Eric Clarkson, and Jannick P. Rolland, "Effect of source spectral shape on task-based assessment of detection and resolution in optical coherence tomography," Appl. Opt. 44, 7573-7580 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-35-7573

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