Abstract
We summarize the performance of an AO-OCT system with reference arm phase shifting for complex conjugate artifactfree imaging of in vivo retinal structures. As a complex conjugate artifact removal (CCR) method we used a previously reported technique requiring constant phase shifts between consecutive A-scans. In our system these shifts were generated by continuous beam path-length changes from offsetting the pivot point of the scanning mirror placed in the system reference arm. In order to reconstruct the complex spectral fringe pattern we used Fourier transformation along the transverse axis and a filtering algorithm. The suppression ratio of mirror complex artifact images was assessed based on acquired in vivo CCR AO-OCT images. Finally, potential problems and limitations connected with this acquisition scheme and data processing algorithms are discussed.
| Original language | English (US) |
|---|---|
| Title of host publication | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
| Volume | 7885 |
| DOIs | |
| State | Published - 2011 |
| Event | Ophthalmic Technologies XXI - San Francisco, CA, United States Duration: Jan 22 2011 → Jan 24 2011 |
Other
| Other | Ophthalmic Technologies XXI |
|---|---|
| Country | United States |
| City | San Francisco, CA |
| Period | 1/22/11 → 1/24/11 |
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Keywords
- aberration compensation
- adaptive optics
- complex conjugate artifact
- imaging systems
- medical optics instrumentation
- ophthalmology
- optical coherence tomography
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Radiology Nuclear Medicine and imaging
Cite this
AO-OCT with reference arm phase shifting for complex conjugate artifact-free imaging of in vivo retinal structures. / Zawadzki, Robert; Kim, Dae Yu; Jones, Steven M.; Pilli, Suman; Olivier, Scot S.; Werner, John S.
Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7885 2011. 78850B.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - AO-OCT with reference arm phase shifting for complex conjugate artifact-free imaging of in vivo retinal structures
AU - Zawadzki, Robert
AU - Kim, Dae Yu
AU - Jones, Steven M.
AU - Pilli, Suman
AU - Olivier, Scot S.
AU - Werner, John S
PY - 2011
Y1 - 2011
N2 - We summarize the performance of an AO-OCT system with reference arm phase shifting for complex conjugate artifactfree imaging of in vivo retinal structures. As a complex conjugate artifact removal (CCR) method we used a previously reported technique requiring constant phase shifts between consecutive A-scans. In our system these shifts were generated by continuous beam path-length changes from offsetting the pivot point of the scanning mirror placed in the system reference arm. In order to reconstruct the complex spectral fringe pattern we used Fourier transformation along the transverse axis and a filtering algorithm. The suppression ratio of mirror complex artifact images was assessed based on acquired in vivo CCR AO-OCT images. Finally, potential problems and limitations connected with this acquisition scheme and data processing algorithms are discussed.
AB - We summarize the performance of an AO-OCT system with reference arm phase shifting for complex conjugate artifactfree imaging of in vivo retinal structures. As a complex conjugate artifact removal (CCR) method we used a previously reported technique requiring constant phase shifts between consecutive A-scans. In our system these shifts were generated by continuous beam path-length changes from offsetting the pivot point of the scanning mirror placed in the system reference arm. In order to reconstruct the complex spectral fringe pattern we used Fourier transformation along the transverse axis and a filtering algorithm. The suppression ratio of mirror complex artifact images was assessed based on acquired in vivo CCR AO-OCT images. Finally, potential problems and limitations connected with this acquisition scheme and data processing algorithms are discussed.
KW - aberration compensation
KW - adaptive optics
KW - complex conjugate artifact
KW - imaging systems
KW - medical optics instrumentation
KW - ophthalmology
KW - optical coherence tomography
UR - http://www.scopus.com/inward/record.url?scp=79953155481&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79953155481&partnerID=8YFLogxK
U2 - 10.1117/12.873955
DO - 10.1117/12.873955
M3 - Conference contribution
AN - SCOPUS:79953155481
SN - 9780819484222
VL - 7885
BT - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
ER -