
Proceedings Paper
Optical coherence tomography imaging based on non-harmonic analysisFormat | Member Price | Non-Member Price |
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Paper Abstract
A new processing technique called Non-Harmonic Analysis (NHA) is proposed for OCT imaging.
Conventional Fourier-Domain OCT relies on the FFT calculation which depends on the window
function and length. Axial resolution is counter proportional to the frame length of FFT that is
limited by the swept range of the swept source in SS-OCT, or the pixel counts of CCD in SD-OCT
degraded in FD-OCT. However, NHA process is intrinsically free from this trade-offs; NHA can
resolve high frequency without being influenced by window function or frame length of sampled
data. In this study, NHA process is explained and applied to OCT imaging and compared with OCT
images based on FFT. In order to validate the benefit of NHA in OCT, we carried out OCT imaging
based on NHA with the three different sample of onion-skin,human-skin and pig-eye. The results
show that NHA process can realize practical image resolution that is equivalent to 100nm swept
range only with less than half-reduced wavelength range.
Paper Details
Date Published: 25 November 2009
PDF: 10 pages
Proc. SPIE 7634, Optical Sensors and Biophotonics, 763406 (25 November 2009); doi: 10.1117/12.852173
Published in SPIE Proceedings Vol. 7634:
Optical Sensors and Biophotonics
Xingde Li; Qingming Luo; Vasilis Ntziachristos; Yoshiaki Yasuno, Editor(s)
PDF: 10 pages
Proc. SPIE 7634, Optical Sensors and Biophotonics, 763406 (25 November 2009); doi: 10.1117/12.852173
Show Author Affiliations
Xu Cao, Univ. of Toyama, Gofuku (Japan)
Shigeki Hirobayashi, Univ. of Toyama, Gofuku (Japan)
Changho Chong, Santec Corp. (Japan)
Shigeki Hirobayashi, Univ. of Toyama, Gofuku (Japan)
Changho Chong, Santec Corp. (Japan)
Atsushi Morosawa, Santec Corp. (Japan)
Koki Totsuka, Santec Corp. (Japan)
Takuya Suzuki, Santec Corp. (Japan)
Koki Totsuka, Santec Corp. (Japan)
Takuya Suzuki, Santec Corp. (Japan)
Published in SPIE Proceedings Vol. 7634:
Optical Sensors and Biophotonics
Xingde Li; Qingming Luo; Vasilis Ntziachristos; Yoshiaki Yasuno, Editor(s)
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