Method, apparatus, and program for processing tomographic...

Details Method, apparatus, and program for processing tomographic... Method, apparatus, and program for processing tomographic...

2008-03-13

2010-10-12

Turner, Samuel A (Department: 2877)

Optics: measuring and testing

By light interference

Using fiber or waveguide interferometer

C356S497000

Reexamination Certificate

active

07812961

ABSTRACT:
Image quality of tomographic images obtained by optical tomographic measurement is improved. Spatial frequency processes are administered on a tomographic image, with the frequency processing properties (high frequency gain) in the scanning direction of a measuring light beam set to be lower than the frequency processing properties (high frequency gain) in the direction of the optical axis of the measuring light beam. For example, a smoothing process that removes high frequency components is administered to the tomographic image only in the scanning direction. Alternatively, a sharpening process that emphasizes high frequency components is administered to the tomographic image only in the direction of the optical axis. As a further alternative, a smoothing process that removes high frequency components is administered to the tomographic image in the scanning direction, then a sharpening process that emphasizes high frequency components is administered to the tomographic image in the direction of the optical axis.

REFERENCES:
patent: 2003/0103212 (2003-06-01), Westphal et al.
patent: 2005/0140984 (2005-06-01), Hitzenberger
patent: 2006/0171503 (2006-08-01), O'Hara et al.
patent: 2007/0263227 (2007-11-01), Mujat et al.
patent: 2006-189424 (2006-07-01), None
Yoshiaki Yasuno, et al., “Three-dimensional and high-speed swept-source optical coherence tomography for in vivo investigation of human anterior eye segments”, Optical Express, 2005, pp. 10652-10664, vol. 13, No. 26.

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