Abstract
We propose, test, and validate a novel Fourier-domain-based method for ghost image artifacts reduction in a common-path SSOCT system having multiple adjacent reference planes. Common-path probes with imaging systems containing high-index sapphire ball or other lenses produce multiple fixed references due to Fresnel reflections from the lens surfaces. The multiple reference planes produce multiple and overlapping optical coherence tomography (OCT) images. Since such ghost artifacts are the result of the superposition of multiple identical images having different amplitudes and spatial shifts, one can correctly shift and sum the images in the Fourier-domain once the relative amplitude and lateral position between the reference planes are known. This theory and numerical testing are presented to elucidate our method. We then validate the potential effectiveness using OCT imaging experiments.
Original language | English (US) |
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Article number | 7491223 |
Pages (from-to) | 1972-1975 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 28 |
Issue number | 18 |
DOIs | |
State | Published - Sep 15 2016 |
Keywords
- Optical fiber sensors
- biomedical optical imaging
- optical signal detection
- optical signal processing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering