Abstract
Abstract Integration time and reference intensity are important factors for achieving high signal-to-noise ratio (SNR) and sensitivity in optical coherence tomography (OCT). In this context, we present an adaptive optimization method of reference intensity for OCT setup. The reference intensity is automatically controlled by tilting a beam position using a Galvanometric scanning mirror system. Before sample scanning, the OCT system acquires two dimensional intensity map with normalized intensity and variables in color spaces using false-color mapping. Then, the system increases or decreases reference intensity following the map data for optimization with a given algorithm. In our experiments, the proposed method successfully corrected the reference intensity with maintaining spectral shape, enabled to change integration time without manual calibration of the reference intensity, and prevented image degradation due to over-saturation and insufficient reference intensity. Also, SNR and sensitivity could be improved by increasing integration time with automatic adjustment of the reference intensity. We believe that our findings can significantly aid in the optimization of SNR and sensitivity for optical coherence tomography systems.
| Original language | English |
|---|---|
| Article number | 20092 |
| Pages (from-to) | 57-62 |
| Number of pages | 6 |
| Journal | Optics Communications |
| Volume | 351 |
| DOIs | |
| Publication status | Published - 2015 Sep 15 |
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Keywords
- Biomedical imaging
- Microscopy
- Optical imaging
- Optical interferometry
- Optical signal detection
- Tomography
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
Cite this
Adaptive optimization of reference intensity for optical coherence imaging using galvanometric mirror tilting method. / Kim, Ji hyun; Han, Jae Ho; Jeong, Jichai.
In: Optics Communications, Vol. 351, 20092, 15.09.2015, p. 57-62.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Adaptive optimization of reference intensity for optical coherence imaging using galvanometric mirror tilting method
AU - Kim, Ji hyun
AU - Han, Jae Ho
AU - Jeong, Jichai
PY - 2015/9/15
Y1 - 2015/9/15
N2 - Abstract Integration time and reference intensity are important factors for achieving high signal-to-noise ratio (SNR) and sensitivity in optical coherence tomography (OCT). In this context, we present an adaptive optimization method of reference intensity for OCT setup. The reference intensity is automatically controlled by tilting a beam position using a Galvanometric scanning mirror system. Before sample scanning, the OCT system acquires two dimensional intensity map with normalized intensity and variables in color spaces using false-color mapping. Then, the system increases or decreases reference intensity following the map data for optimization with a given algorithm. In our experiments, the proposed method successfully corrected the reference intensity with maintaining spectral shape, enabled to change integration time without manual calibration of the reference intensity, and prevented image degradation due to over-saturation and insufficient reference intensity. Also, SNR and sensitivity could be improved by increasing integration time with automatic adjustment of the reference intensity. We believe that our findings can significantly aid in the optimization of SNR and sensitivity for optical coherence tomography systems.
AB - Abstract Integration time and reference intensity are important factors for achieving high signal-to-noise ratio (SNR) and sensitivity in optical coherence tomography (OCT). In this context, we present an adaptive optimization method of reference intensity for OCT setup. The reference intensity is automatically controlled by tilting a beam position using a Galvanometric scanning mirror system. Before sample scanning, the OCT system acquires two dimensional intensity map with normalized intensity and variables in color spaces using false-color mapping. Then, the system increases or decreases reference intensity following the map data for optimization with a given algorithm. In our experiments, the proposed method successfully corrected the reference intensity with maintaining spectral shape, enabled to change integration time without manual calibration of the reference intensity, and prevented image degradation due to over-saturation and insufficient reference intensity. Also, SNR and sensitivity could be improved by increasing integration time with automatic adjustment of the reference intensity. We believe that our findings can significantly aid in the optimization of SNR and sensitivity for optical coherence tomography systems.
KW - Biomedical imaging
KW - Microscopy
KW - Optical imaging
KW - Optical interferometry
KW - Optical signal detection
KW - Tomography
UR - http://www.scopus.com/inward/record.url?scp=84928710948&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928710948&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2015.04.041
DO - 10.1016/j.optcom.2015.04.041
M3 - Article
AN - SCOPUS:84928710948
VL - 351
SP - 57
EP - 62
JO - Optics Communications
JF - Optics Communications
SN - 0030-4018
M1 - 20092
ER -