| DOI | Resolve DOI: https://doi.org/10.1117/12.2001691 |
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| Author | Search for: Boroomand, Ameneh; Search for: Smith, Michael S. D.1; Search for: Popescu, Dan P.1; Search for: Sowa, Michael1; Search for: Sherif, Sherif S. |
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| Affiliation | - National Research Council of Canada. Medical Devices
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| Format | Text, Article |
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| Conference | Photonics North 2012, June 6-8, 2012, Montreal, QC, Canada |
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| Subject | 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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| Abstract | 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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| Publication date | 2012-10-23 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21270176 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | d21ee184-120e-423f-b645-558967cb203c |
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| Record created | 2014-01-08 |
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| Record modified | 2020-04-21 |
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