Title:
PHASE-INVERTED SIDELOBE-ANNIHILATED OPTICAL COHERENCE TOMOGRAPHY
Document Type and Number:
WIPO Patent Application WO/2016/023502
Kind Code:
A1
Abstract:
An optical coherent tomographic imaging system includes means for introducing a 180-degree phase inversion in the interference fringes, and generating a two-peak shape point spread function (PSF) in the frequency domain for the interference-based tomographic imaging system. The system further includes means for achieving sharper resolution than the diffraction-limited spectral bandwidth in the tomographic imaging system through subtracting the two-peak shape from the original Gaussian PSF. Means are provided for removing the ghost fringes in the tomographic imaging system, which is introduced by the self-interference between the different layers of the sample arm. The apparatus is configured to realize the real-time super-resolution swept-source optical coherent tomography (OCT) such that the sensitivity of the system is enhanced by suppressing the noise floor in the frequency domain, as well as removing the ghost fringes.
Inventors:
WONG KIN YIP KENNETH (CN)
ZHANG CHI (CN)
ZHANG CHI (CN)
Application Number:
PCT/CN2015/086828
Publication Date:
February 18, 2016
Filing Date:
August 13, 2015
Export Citation:
Assignee:
UNIV HONG KONG (CN)
International Classes:
A61B5/00
Domestic Patent References:
| WO2013081902A1 | 2013-06-06 | |||
| WO2012100213A2 | 2012-07-26 |
Foreign References:
| US6549801B1 | 2003-04-15 | |||
| US7359062B2 | 2008-04-15 | |||
| US20040239942A1 | 2004-12-02 | |||
| CN101406391A | 2009-04-15 | |||
| CN103799975A | 2014-05-21 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (Great Eagle Center,23 Harbour Road,,Wanchai, Hong Kong, CN)
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