期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 54, 期 29, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/abf958
关键词
compressive sensing; sparse sampling; polarization sensitive optical coherence tomography
资金
- National Institute of Biomedical Imaging and Bioengineering (NIBIB) [R01 EB023232]
- National Cancer Institute (NCI) [R01 CA213149]
This report demonstrates the implementation of compressive sensing and sparse sampling in polarization sensitive optical coherence tomography to reduce the number of B-scans required for effective volumetric measurements. The results show that CS could reconstruct reasonably good PS-OCT measurements with a maximum reduced B-scan rate of 50%, thereby accelerating and doubling the rate of volumetric PS-OCT measurements.
In this report, we report on the implementation of compressive sensing (CS) and sparse sampling in polarization sensitive optical coherence tomography (PS-OCT) to reduce the number of B-scans (frames consisting of an array of A-scans, where each represents a single depth profile of reflections) required for effective volumetric (3D dataset composed of an array of B-scans) PS-OCT measurements (i.e. OCT intensity, and phase retardation) reconstruction. Sparse sampling of PS-OCT is achieved through randomization of step sizes along the slow-axis of PS-OCT imaging, covering the same spatial ranges as those with equal slow-axis step sizes, but with a reduced number of B-scans. Tested on missing B-scan rates of 25%, 50% and 75%, we found CS could reconstruct reasonably good (as evidenced by a correlation coefficient >0.6) PS-OCT measurements with a maximum reduced B-scan rate of 50%, thereby accelerating and doubling the rate of volumetric PS-OCT measurements.
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