| DOI | Trouver le DOI : https://doi.org/10.1117/12.2001691 |
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| Auteur | Rechercher : Boroomand, Ameneh; Rechercher : Smith, Michael S. D.1; Rechercher : Popescu, Dan P.1; Rechercher : Sowa, Michael1; Rechercher : Sherif, Sherif S. |
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| Affiliation | - Conseil national de recherches du Canada. Dispositifs médicaux
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| Format | Texte, Article |
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| Conférence | Photonics North 2012, June 6-8, 2012, Montreal, QC, Canada |
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| Sujet | Depth dependents; Empirical estimate; OCT images; Second order statistics; Time domain; Vascular tissue; Matched filters; Signal to noise ratio; Tissue; Optical tomography |
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| Résumé | We discuss and demonstrate the dependence of noise on the signal in time-domain optical coherence tomography (TD-OCT). We then derive a depth-dependent matched filter to maximize the signal-to-noise ratio at every pixel in a depth-scan (A-scan). We use an empirical estimate of the second order statistics of the noise in OCT images of vascular tissue to implement a depth-dependent filter that is matched to these images. The application of our filter results in an average increase of signal-to-noise ratio of about 7 dB compared to a simple averaging operation. Our filter is not specific to time-domain OCT, but it is applicable to other types of OCT systems. |
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| Date de publication | 2012-10-23 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21270176 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | d21ee184-120e-423f-b645-558967cb203c |
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| Enregistrement créé | 2014-01-08 |
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| Enregistrement modifié | 2020-04-21 |
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