Fourier domain optical coherence tomography axial resolution improvement with modulated deconvolution

Evgenia Bousi; Ismini Charalambous; Costas Pitris

doi:10.1117/12.889762

1 June 2011 Fourier domain optical coherence tomography axial resolution improvement with modulated deconvolution

Evgenia Bousi, Ismini Charalambous, Costas Pitris

Proceedings Volume 8091, Optical Coherence Tomography and Coherence Techniques V; 80910P (2011) https://doi.org/10.1117/12.889762
Event: European Conferences on Biomedical Optics, 2011, Munich, Germany

Abstract

In this manuscript the application of a novel technique for axial resolution improvement in Fourier Domain Optical Coherence Tomography (FDOCT) is demonstrated. Axial resolution in FDOCT can be improved by ~7x without the need for a broader bandwidth light source using modulated deconvolution. In FDOCT the real part of FFT of each interferofram is modulated by a frequency which depends on the position of the interferogram. If an interferogram is shifted slightly, the frequency of the real part of the FFT changes. By adding two shifted interferograms, beating can be appeared in the OCT A-Scans. Subsequently deconvolution with suitable kernels can produce a significant resolution improvement in the FDOCT image.

Citation Download Citation

Evgenia Bousi, Ismini Charalambous, and Costas Pitris "Fourier domain optical coherence tomography axial resolution improvement with modulated deconvolution", Proc. SPIE 8091, Optical Coherence Tomography and Coherence Techniques V, 80910P (1 June 2011); https://doi.org/10.1117/12.889762

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