Data processing: measuring – calibrating – or testing – Measurement system
Reexamination Certificate
2006-03-17
2009-02-17
Wachsman, Hal D (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
C702S077000, C356S497000
Reexamination Certificate
active
07493227
ABSTRACT:
A method determines the complex scattering function of a portion of a sample under analysis. The method includes providing a magnitude spectrum of a complex spatial Fourier transform of a complex intermediate function. The complex intermediate function is dependent on the complex scattering function of the sample. The magnitude spectrum is obtained from power spectrum data of frequency-domain optical coherence tomography of the sample. The method further includes providing an estimated phase term of the complex spatial Fourier transform. The method further includes multiplying the magnitude spectrum and the estimated phase term together to generate an estimated complex spatial Fourier transform. The method further includes calculating an inverse Fourier transform of the estimated complex spatial Fourier transform. The method further includes calculating an estimated intermediate function by applying at least one constraint to the inverse Fourier transform of the estimated complex spatial Fourier transform.
REFERENCES:
patent: 4627731 (1986-12-01), Waters et al.
patent: 5994690 (1999-11-01), Kulkarni et al.
patent: 6219142 (2001-04-01), Kane
patent: 7019838 (2006-03-01), Izatt et al.
patent: 2004/0239938 (2004-12-01), Izatt
patent: 2004/0239943 (2004-12-01), Izatt et al.
patent: PCT/US2006/009677 (2006-03-01), None
Vakhtin, A.B., et al., Common-path interferometer for frequency-domain optical coherence tomography,Applied Optics, vol. 42, No. 34, Dec. 1, 2003, pp. 6953-6958.
PCT/US2006/009677, Sep. 28, 2006, The Board of Trustees of the Leland Stanford Junior University, ISR dated Oct. 10, 2006.
Choma, Michael A., et al., Sensitivity advantage of swept source and Fourier domain optical coherence tomography,Optics Express, vol. 11, 2003, pp. 2183-2189.
Fercher, A.F., et al., Measurement of intraocular distances by backscattering spectral interferometry,Opt. Commun., vol. 117, 1995, Abstract, one page.
Fercher, A.F., et al., Optical Coherence Tomography in Medicine, from Asakura, T.,International trends in optics and photonics ICO IV, Springer-Verlag, Berlin Heidelberg, 1999, pp. 359-389.
Fienup, J.R., Reconstruction of an object from the modulus of its Fourier transform,Opt. Lett., vol. 3, 1978, pp. 27-29.
Fujimoto, James G., et al., Optical biopsy and imaging using optical coherence tomography,Nature Medicine, vol. 1, 1995, pp. 970-972.
Gerchber, R.W., et al., Practical algorithm for the determination of phase from image and diffraction plane pictures,Optik, vol. 35, 1972, Abstract, one page.
Häusler, Gerd, et al., Coherence radar and spectral radar—New tools for dermatological diagnosis,J. Biomed. Opt., vol. 3, 1998, pp. 21-31.
Hayes, Monson H., et al., Signal reconstruction from phase or magnitude,IEEE Trans. Acoust., Speech, Signal Processing, vol. 28, 1980, pp. 672-680.
Huang, David, et al., Optical coherence tomography,Science, vol. 254, 1991, pp. 1178-1181.
Leitgeb, R.A., et al., Performance of Fourier domain vs. time domain optical coherence tomography,Optics Express, vol. 11, 2003, pp. 889-894.
Leitgeb, Rainer A., et al., Phase-shifting algorithm to achieve high-speed, long-depth-range probing by frequency domain optical coherence tomography,Opt. Lett., vol. 28, 2003, pp. 2201-2203.
Leitgeb, R.A., et al., Ultrahigh resolution Fourier domain optical coherence tomography,Optics Express, vol. 12, 2004, pp. 2156-2165.
Ozcan, A., et al., Group delay recovery using iterative processing of amplitude of transmission spectra of fibre Bragg Gratings,Electron. Lett., vol. 40, No. 18, 2004, two pages.
Ozcan, A., et al., Iterative processing of second-order optical nonlinearity depth profiles,Opt. Express, vol. 12, 2004, pp. 3367-3376.
Quatieri, Thomas F., Jr., et al., Iterative techniques for minimum phase signal reconstruction from phase or magnitude,IEEE Trans. Acoust., Speech. Signal Processing, vol. 29, 1981, pp. 1187-1193.
Wojtkowski, Maciej, et al., In vivo human retinal imaging by Fourier domain optical coherence tomography,J. Biomed. Opt., vol. 7, 2003, pp. 457-463.
Ozcan, A., et al., Frequency-domain coherence tomography based on minimum-phase functions,Proc. of SPIE, vol. 6079, Edward L. Ginzton Laboratory, Stanford University, Stanford, CA, 12 pages.
Petermann, E. Ingemar, et al., Characterization of Fiber Bragg Gratings by Use of Optical Coherence-Domain Reflectometry,Journal of Lightwave Technology, vol. 17, No. 11, Nov. 1999, pp. 2371-2378.
Oppenheim, V. and Schafer, R.W.,Digital Signal Processing, Prentice Hall, 2002, Chapter 7.
Digonnet Michel J. F.
Kino Gordon S.
Ozcan Aydogan
Knobbe Martens Olson & Bear LLC
The Board of Trustees of the Leland Stanford Junior University
Wachsman Hal D
LandOfFree
Method for determining the complex scattering function of an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for determining the complex scattering function of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining the complex scattering function of an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4072743