Abstract

A method, novel to our knowledge, for effective mirror image suppression in Fourier-domain optical coherence tomography based on a phase shift between neighboring A-mode scans is demonstrated. By realizing that the phase shifts of the real and mirror images are mutually reversed and assuming that the real image intensities of the two successive A-mode scans are the same, we can solve a set of two coupled equations to obtain the real image signals. The images based on the scanning of a high-resolution spectral-domain optical coherence tomography system are processed to show effective mirror image suppression results. Compared with a similar method of broad application, our approach has the advantages of shorter process time and higher flexibility in selecting the concerned image portions for processing.

© 2011 Optical Society of America

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2011

A. Dhalla and J. Izatt, Opt. Express 2, 1218 (2011).
[CrossRef]

2010

2009

2008

2007

2006

2005

2004

2003

1999

A. F. Fercher, R. Leitgeb, C. K. Hitzenberger, H. Sattmann, and M. Wojtkowski, Proc. SPIE 3564, 173 (1999).
[CrossRef]

Aoki, G.

Bachmann, A.

Bajraszewski, T.

Baumann, B.

Bonesi, M.

Bouma, B.

Chen, Z.

Choma, M.

Dallas, W.

de Boer, J.

Dhalla, A.

A. Dhalla and J. Izatt, Opt. Express 2, 1218 (2011).
[CrossRef]

Drexler, W.

Dufour, M.

Endo, T.

Fercher, A. F.

R. A. Leitgeb, C. K. Hitzenberger, A. F. Fercher, and T. Bajraszewski, Opt. Lett. 28, 2201 (2003).
[CrossRef] [PubMed]

A. F. Fercher, R. Leitgeb, C. K. Hitzenberger, H. Sattmann, and M. Wojtkowski, Proc. SPIE 3564, 173 (1999).
[CrossRef]

Götzinger, E.

Hermann, B.

Hitzenberger, C.

Hitzenberger, C. K.

R. A. Leitgeb, C. K. Hitzenberger, A. F. Fercher, and T. Bajraszewski, Opt. Lett. 28, 2201 (2003).
[CrossRef] [PubMed]

A. F. Fercher, R. Leitgeb, C. K. Hitzenberger, H. Sattmann, and M. Wojtkowski, Proc. SPIE 3564, 173 (1999).
[CrossRef]

Hofer, B.

Hsu, K.

Itoh, M.

Izatt, J.

Jaillon, F.

Jung, W.

Kane, D.

Lamouche, G.

Lasser, T.

Lee, K.

Leitgeb, R.

A. Bachmann, R. Leitgeb, and T. Lasser, Opt. Express 14, 1487 (2006).
[CrossRef] [PubMed]

A. F. Fercher, R. Leitgeb, C. K. Hitzenberger, H. Sattmann, and M. Wojtkowski, Proc. SPIE 3564, 173 (1999).
[CrossRef]

Leitgeb, R. A.

Makita, S.

Matz, G.

Meemon, P.

Nelson, J.

Peterson, K.

Pircher, M.

Povazay, B.

Rolland, J.

Sattmann, H.

A. F. Fercher, R. Leitgeb, C. K. Hitzenberger, H. Sattmann, and M. Wojtkowski, Proc. SPIE 3564, 173 (1999).
[CrossRef]

Tao, Y.

Tearney, G.

Torzicky, T.

Unterhuber, A.

Vakhtin, A.

Vergnole, S.

Wang, R. K.

R. K. Wang, Appl. Phys. Lett. 90, 054103 (2007).
[CrossRef]

Wojtkowski, M.

A. F. Fercher, R. Leitgeb, C. K. Hitzenberger, H. Sattmann, and M. Wojtkowski, Proc. SPIE 3564, 173 (1999).
[CrossRef]

Yabusaki, M.

Yang, C.

Yasuno, Y.

Yatagai, T.

Yun, S.

Zhang, J.

Zhao, M.

Zotter, S.

Appl. Opt.

Appl. Phys. Lett.

R. K. Wang, Appl. Phys. Lett. 90, 054103 (2007).
[CrossRef]

Opt. Express

Opt. Lett.

Proc. SPIE

A. F. Fercher, R. Leitgeb, C. K. Hitzenberger, H. Sattmann, and M. Wojtkowski, Proc. SPIE 3564, 173 (1999).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Spectrum of the SD-OCT light source.

Fig. 2
Fig. 2

Setup of the SD-OCT system. ND filter, neutral density filter.

Fig. 3
Fig. 3

(a) OCT scanning image of a sample consisting of five Scotch tape layers on a 3M Post-it Note; (b) mapping of the phase difference between two successive A-mode scans; (c) mapping of the absolute values of (b).

Fig. 4
Fig. 4

(a) Real-space OCT image of a pig adipose sample, which contains both real and mirror images; (b) result obtained by suppressing the mirror image from (a) [the complex raw data to give (a) after taking the absolute values] with the BM-scan method; (c), (d), (e) results obtained by using our approach when the phase shift, θ, is set at 88.1 ° , 68.1 ° , and 108.1 ° , respectively.

Fig. 5
Fig. 5

(a) Real-space OCT image of human skin near the finger nail border, which contains both real and mirror images; (b) result obtained by suppressing the mirror image from (a) [the complex raw data to give (a) after taking the absolute values] with the BM-scan method; (c) result obtained by using our approach when the phase shift, θ, is set at 88.1 ° ; (d) result obtained by adding a lateral averaging step based on our approach.

Equations (3)

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Z r , l , n + Z m , l , n = G l , n .
Z r , l , n + 1 + Z m , l , n + 1 = G l , n + 1 .
Z r , l , n exp ( i θ ) + Z m , l , n exp ( i θ ) = G l , n + 1 .

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