A pseudo-spectrum reconstruction method for reducing saturation artifact in spectral-domain optical coherence tomography

Cheng Kuang Lee*, Meng Tsan Tsai, Chiung Ting Wu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Saturation artifact is a significant image noise due to the limited detectable maximum light intensity of the CCD camera in the spectrometer module of spectral-domain optical coherence tomography (SD-OCT). This effect makes the OCT image appear with saturation noise in certain areas along with even more obvious vertical lines of noise. The unwanted artifacts cover the real sample structure information and can render the image unclear. This artifact problem is significant when using highly focused objective lenses for improving image transverse resolution. In this study, we developed a parabolic-based reconstruction method to estimate the saturated parts of the measured spectra in order to obtain the corresponding pseudo spectra. The saturation artifact is clearly reduced when the OCT images are processed from the pseudo spectra.

Original languageEnglish
Title of host publicationBiophotonics
Subtitle of host publicationPhotonic Solutions for Better Health Care IV
PublisherSPIE
ISBN (Print)9781628410778
DOIs
StatePublished - 2014
EventBiophotonics: Photonic Solutions for Better Health Care IV - Brussels, Belgium
Duration: 14 04 201417 04 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9129
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceBiophotonics: Photonic Solutions for Better Health Care IV
Country/TerritoryBelgium
CityBrussels
Period14/04/1417/04/14

Keywords

  • Optical Coherence tomography
  • noise in imaging system

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