Name
Title | ||
|---|---|---|
Towards an on-chip signal processing solution for the online calibration of SS-OCT systems |
Abstract | ||
|---|---|---|
This paper demonstrates a low complexity, computationally efficient method for the real-time calibration of Swept Source Optical Coherence Tomography (SS-OCT) systems. In this work, Interpolated Discrete Fourier Transform (IpDFT) based algorithms were explored as a highly efficient alternative for instantaneous frequency measurement and wavenumber calibration of fast optical swept sources. Various IpDFT based methods are implemented and results are evaluated against commonly performed calibration techniques such as Hilbert transformation. Simulation shows execution times decisively improved by up to a factor of ten, depending on observational window length. Axial resolution was also slightly improved. Moreover, the inverse tangent and phase unwrapping steps necessary for Hilbert transform calibration techniques are eliminated, vastly reducing circuit implementation complexity and making the system suitable for future inexpensive, power efficient, on-chip solutions in SS-OCT post-processing. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.1109/ISCAS.2017.8050241 | 2017 IEEE International Symposium on Circuits and Systems (ISCAS) |
Keywords | Field | DocType |
Swept Source Optical Coherence Tomography(SS-OCT),Mach Zehnder Interferometer (MZI),Calibration,Interpolated Discrete Fourier Transform,Hilbert Transform,Axial Resolution | Signal processing,Computer science,Electronic engineering,Interferometry,Hilbert transform,Discrete Fourier transform,Instantaneous phase,Image resolution,Calibration,Inverse trigonometric functions | Conference |
ISSN | ISBN | Citations |
0271-4302 | 978-1-5090-1427-9 | 1 |
PageRank | References | Authors |
0.35 | 1 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Oscar Barajas | 1 | 1 | 0.68 |
| Amir Tofighi Zavareh | 2 | 2 | 2.04 |
| Sebastian Hoyos | 3 | 234 | 29.24 |