Title

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

Authors

Authors

A. C. Akcay; E. Clarkson;J. P. Rolland

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Optics

Keywords

OBJECTIVE ASSESSMENT; IMAGE QUALITY; PERFORMANCE; OBSERVERS; Optics

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. (c) 2005 Optical Society of America.

Journal Title

Applied Optics

Volume

44

Issue/Number

35

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

7573

Last Page

7580

WOS Identifier

WOS:000234012400009

ISSN

1559-128X

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