Abstract
A table summarizing existing methods for velocimetry using OCT miscategorized Lee et al.’s work on DLS-OCT as being intensity-based, when it was actually field-based. This erratum report gives the corrected table. Also, the acknowledgments section was missing, which we include here.
OCIS codes: (110.4500) Optical coherence tomography, (120.7250) Velocimetry, (110.4153) Motion estimation and optical flow, (170.3880) Medical and biological imaging, (280.2490) Flow diagnostics
In Table 1 of the introduction of our original paper [1], we listed existing methods for velocimetry in OCT. However, we misclassified the work of Lee et al. [2] in DLS-OCT as intensity-based DLS, when their work was in field-based DLS. We have merged field-based and intensity-based DLS-OCT into one category, DLS-OCT, in Table 1 below. Note that the reference numbering is different from the original paper.
Table 1. A comparison of velocimetry techniques in OCT.
| Technique | Correlation | Density | Components | PSF Calibration? | References |
|---|---|---|---|---|---|
| Doppler-OCT | temporal | dense | z | not needed | [3–5] |
| Multiangle-Doppler-OCT | temporal | dense | x, y, z, total speed | not needed | [6–8] |
| PTV-OCT | spatial | sparse | x, z | not needed | [9] |
| DPIV-OCT | spatial | intermediate | x, z | not needed | [10–13] |
| Speckle tracking | spatial | dense | x, z | not needed | [14] |
| DLS-OCT | temporal | dense | z, total speed, lateral speed | yes | [2] |
| Directional DLS-OCT | temporal | dense | x, z, total speed | estimated | [15,16] |
| OCT micro PIV | temporal | sparse | total speed | yes | [17] |
| PSV-OCT | spatial + temporal |
sparse-intermediate | x, |y|, z, total speed | estimated | this work |
The second column indicates the type of correlation on which the technique is based. The third column indicates in what scattering regime the technique operates. A dense scattering regime means that individual particles are unresolvable, while in a sparse regime the particles are resolvable. The fourth column indicates which components are estimated from a time series of B-scans. Finally, the fifth column indicates whether calibration (i.e., of the optical beam waist) is required.
We also did not include the acknowledgments in the original paper, which is printed below:
Acknowledgments
This work was supported by NIH1R01HL118419-01 (MAC). BKH was additionally supported by NIH MSTP TG T32GM07205. MKK was supported by NIH1R21HL120783 and 1R01HD081379. VB was supported by NIHR01HL085103.
References and links
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