Information aspects of optical coherence tomography

Y. Mazurenko

doi:10.1117/12.674941

9 June 2006 Information aspects of optical coherence tomography

Y. Mazurenko

Proceedings Volume 6162, International Conference on Lasers, Applications, and Technologies 2005: Laser Sensing, Imaging, and Information Technologies; 616201 (2006) https://doi.org/10.1117/12.674941
Event: International Conference on Lasers, Applications, and Technologies 2005, 2005, St. Petersburg, Russian Federation

Abstract

Optical coherence tomography (OCT) is the novel method for producing three-dimensional images of the relatively thin (up to 2 mm) layers of the biological tissues. OCT is based on the interferometry of low-coherence light. The important factors, characterizing OCT, are the measurement speed and the quality of the obtained images. Both of these two factors actually characterize the amount of new information generated during the measurement with OCT. Using the Shannon's information theory; the quantitative characteristics of the information efficiency of OCT are introduced. Information capacities of OCT realizations based on scanning low-coherence interferometry and on spectral interferometry are defined and compared. It is shown that, image quality being the same, information capacity of spectral interferometry exceeds that of scanning low-coherence interferometry by a factor equal to the number of resolvable elements in a single in-depth scan. The speed of measurement and the image quality characterizing two methods are also compared.

Citation Download Citation

Y. Mazurenko "Information aspects of optical coherence tomography", Proc. SPIE 6162, International Conference on Lasers, Applications, and Technologies 2005: Laser Sensing, Imaging, and Information Technologies, 616201 (9 June 2006); https://doi.org/10.1117/12.674941

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KEYWORDS

Optical coherence tomography

Light scattering

Interferometry

Signal to noise ratio

Photodetectors

Interferometers

3D image processing

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