An image processing algorithm that improves the quality of raw Optical Coherence Topographic (OCT) images by reducing their blur and noise is presented. The algorithm consists of three steps: first the raw OCT images of the human eye are blended together, then the resulting image is filtered using an un-sharpening mask and finally the noise is removed using an anisotropic filter. Demonstrative images illustrating a comparison between original raw OCT images and their processed images are presented. The results depict the ability of the algorithm to reveal fine details that are not visible in the original raw image, which allow a fast-non-invasive detection of retina changes specific to eye diseases.
REFERENCES
1.
F.
Toadere
, R.-F.
Stancu
, W.
Poon
, D.
Schultz
and A.
Podoleanu
, IEEE Phot. Tech. Letters
29
(11
), pp. 933
–936
, (2017
).2.
C.
Chin
, F.
Toadere
, T.
Feuchter
, L.
Leick
, P.
Moselund
, A.
Bradu
, and A.
Podoleanu
, Appl. Opt.
55
(21
), 5707
–5714
(2016
).3.
A. F.
Fercher
, W.
Drexler
, C. K.
Hitzenberger
and T.
Lasser
, Rep. Prog. Phys.
66
(2
), 239
–303
(2003
).4.
J. W.
Goodman
, Speckle phenomena in optics: Theory and Applications
(Roberts & Company
, Greenwood Village, CO USA
, 2007
), pp. 195
–200
.5.
A.
Stankiewicz
, T.
Marciniak
, A.
Dąbrowski
, M.
Stopa
, P.
Rakowicz
and E.
Marciniak
, Bull. Pol. Acad. Sci. Tech. Sci.
65
(1
), 71
–78
(2017
).6.
A.
Usha
, Nijisha
Shajil
, M.
Sasikala
, Curr. Med. Imag.
15
(3
), 308
–318
(2019
).7.
R.
Koprowski
and Z.
Wrobel
, Image Processing in Optical Coherence Tomography Using Matlab,
(University of Silesia
, Katowice, Poland
, 2011
)
, pp. 124
–126
.8.
F.
Toadere
and N.
Tosa
, „Noise removal from raw OCT images achieved using an OCT system operating in the bandwidth 827 nm-873 nm
”, in Proc. SPIE, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IX,
2018
, 10977
, 109770N
, pp.1
–4
.9.
F.
Toadere
, Opt. Eng.
52
(10
), 102005, 1
–12
(2013
).10.
J. C.
Russ
and F. B.
Neal
, The Image Processing Handbook
, 7th Edition, (CRC Press
, Boca Raton
2017
), pp. 100
–103
.11.
P.
Perona
, and J.
Malik
, IEEE Trans. Patt. Anal. Mach. Intell.
12
(7
), 629
–639
(1999
).12.
P. T.
Khaw
, P.
Shah
and A. R.
Elkington
, ABC of Eyes
, (BMJ Publishing Group Ltd, BMA House, Tavistock Square, London WC1H 9JR
, USA
, 2004
), pp. 33
–50
.
This content is only available via PDF.
© 2020 Author(s).
2020
Author(s)
You do not currently have access to this content.
