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Proceedings Paper

2D transform-domain Fourier filters for eliminating microsaccade noise in en face optical coherence tomography angiography
Author(s): Jianlong Yang; Liyang Fang; Yan Hu; Yitian Zhao; Yalin Zheng; Jiang Liu
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Paper Abstract

images. We propose to use 2D Fourier filters in different transform domains including Fourier, wavelet, and nonsubsampled contourlet domains to eliminate this kind of noise. We used image entropy and vessel density as the metrics to evaluate their performance on noise elimination, we found that filtering after the nonsubsampled contourlet transform (NSCT) was the best choice among these approaches. For vessel preservation, the wavelet-domain filtering has the advantage of keeping signal-to-noise ratio while the NSCT filtering can preserve structure similarity to the most extent.

Paper Details

Date Published: 19 July 2019
PDF: 4 pages
Proc. SPIE 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III, 110781U (19 July 2019);
Show Author Affiliations
Jianlong Yang, Cixi Institute of Biomedical Engineering (China)
Liyang Fang, Cixi Institute of Biomedical Engineering (China)
Yan Hu, Cixi Institute of Biomedical Engineering (China)
Yitian Zhao, Cixi Institute of Biomedical Engineering (China)
Yalin Zheng, Univ. of Liverpool (United Kingdom)
Jiang Liu, Cixi Institute of Biomedical Engineering (China)


Published in SPIE Proceedings Vol. 11078:
Optical Coherence Imaging Techniques and Imaging in Scattering Media III
Maciej Wojtkowski; Stephen A. Boppart; Wang-Yuhl Oh, Editor(s)

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