Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence Tomography
Inaccurate wavelength calibration for spectral-domain optical coherence tomography (SD-OCT) generates a depth-dependent broadening of coherence peak. In this paper, a simple technique is proposed to eliminate the wavelength calibration error by the spectral-resolved interference signal correction. U...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10529968/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832590411028234240 |
|---|---|
| author | Mengsi Zhang Songjie Luo Osami Sasaki Ziyang Chen Jixiong Pu |
| author_facet | Mengsi Zhang Songjie Luo Osami Sasaki Ziyang Chen Jixiong Pu |
| author_sort | Mengsi Zhang |
| collection | DOAJ |
| description | Inaccurate wavelength calibration for spectral-domain optical coherence tomography (SD-OCT) generates a depth-dependent broadening of coherence peak. In this paper, a simple technique is proposed to eliminate the wavelength calibration error by the spectral-resolved interference signal correction. Utilizing the nonlinear component of phase distribution in wavenumber domain and the optimization algorithm, an optimized coefficient is obtained and used to improve the axial resolution. The simulation was carried out to verify the principle of the proposed method. In experiment, a sample of reflecting mirror was used to obtain the nonlinear phase and the optimized coefficient for correcting the spectral-resolved interference signals of tapes and chicken breast. In the measurement of a layer of tape with a thickness of about 1.5 mm, two full width half maximum (FWHM) of amplitude generated from the front and rear surfaces dropped to 7.73 μm and 9.99 μm from 33.57 μm and 55.36 μm after the signal correction. A self-made sample containing 6 layers of tape and a part of chicken breast were tested, whose sharpness metric grow larger than 12.8% after signal correction. This method provides a simple way to improve the image quality of SD-OCT in improper wavelength calibration. |
| format | Article |
| id | doaj-art-a073c47c1d384a0381b19568d1f9c5e9 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-a073c47c1d384a0381b19568d1f9c5e92025-01-24T00:00:41ZengIEEEIEEE Photonics Journal1943-06552024-01-011641710.1109/JPHOT.2024.339973610529968Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence TomographyMengsi Zhang0Songjie Luo1https://orcid.org/0000-0003-2485-7386Osami Sasaki2https://orcid.org/0000-0001-6268-6384Ziyang Chen3https://orcid.org/0000-0002-2467-8372Jixiong Pu4https://orcid.org/0000-0001-8781-6683Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, ChinaFujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, ChinaFujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, ChinaFujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen, ChinaNew Engineering Industry College, Putian University, Fujian, ChinaInaccurate wavelength calibration for spectral-domain optical coherence tomography (SD-OCT) generates a depth-dependent broadening of coherence peak. In this paper, a simple technique is proposed to eliminate the wavelength calibration error by the spectral-resolved interference signal correction. Utilizing the nonlinear component of phase distribution in wavenumber domain and the optimization algorithm, an optimized coefficient is obtained and used to improve the axial resolution. The simulation was carried out to verify the principle of the proposed method. In experiment, a sample of reflecting mirror was used to obtain the nonlinear phase and the optimized coefficient for correcting the spectral-resolved interference signals of tapes and chicken breast. In the measurement of a layer of tape with a thickness of about 1.5 mm, two full width half maximum (FWHM) of amplitude generated from the front and rear surfaces dropped to 7.73 μm and 9.99 μm from 33.57 μm and 55.36 μm after the signal correction. A self-made sample containing 6 layers of tape and a part of chicken breast were tested, whose sharpness metric grow larger than 12.8% after signal correction. This method provides a simple way to improve the image quality of SD-OCT in improper wavelength calibration.https://ieeexplore.ieee.org/document/10529968/Image resolutionoptical coherence tomography |
| spellingShingle | Mengsi Zhang Songjie Luo Osami Sasaki Ziyang Chen Jixiong Pu Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence Tomography IEEE Photonics Journal Image resolution optical coherence tomography |
| title | Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence Tomography |
| title_full | Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence Tomography |
| title_fullStr | Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence Tomography |
| title_full_unstemmed | Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence Tomography |
| title_short | Improving a Low Axial Resolution Due to Improper Wavelength Calibration in Spectral-Domain Optical Coherence Tomography |
| title_sort | improving a low axial resolution due to improper wavelength calibration in spectral domain optical coherence tomography |
| topic | Image resolution optical coherence tomography |
| url | https://ieeexplore.ieee.org/document/10529968/ |
| work_keys_str_mv | AT mengsizhang improvingalowaxialresolutionduetoimproperwavelengthcalibrationinspectraldomainopticalcoherencetomography AT songjieluo improvingalowaxialresolutionduetoimproperwavelengthcalibrationinspectraldomainopticalcoherencetomography AT osamisasaki improvingalowaxialresolutionduetoimproperwavelengthcalibrationinspectraldomainopticalcoherencetomography AT ziyangchen improvingalowaxialresolutionduetoimproperwavelengthcalibrationinspectraldomainopticalcoherencetomography AT jixiongpu improvingalowaxialresolutionduetoimproperwavelengthcalibrationinspectraldomainopticalcoherencetomography |