Comparison of synthetic exposure and sequential exposure for multiple exposure speckle imaging of blood flow
| Autor: | Chammas, M., Yu C. H., Gurden, H., Lin H. H., Frederic Pain |
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| Přispěvatelé: | Chang Gung University, Biomedical Imaging Physics Lab, Institute of Radiological Research, Taoyuan City, Taiwan, PAIN, FREDERIC |
| Rok vydání: | 2021 |
| Předmět: |
[SDV] Life Sciences [q-bio]
010309 optics 03 medical and health sciences [SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/Imaging 0302 clinical medicine [SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging [SDV]Life Sciences [q-bio] 0103 physical sciences [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic 01 natural sciences 030217 neurology & neurosurgery |
| Zdroj: | HAL European Conference on Biomedical Optics European Conference on Biomedical Optics, Jun 2021, Munich, Germany |
| DOI: | 10.1117/12.2615436 |
| Popis: | International audience; We have compared multiple exposure speckle imaging using two approaches: (i) duration modulation of laser diode pulses with fixed exposure time and (ii) synthetic exposure created from the sum of frames obtained at 1ms exposure time. Both methods have been applied to evaluate controlled flows in micro-channels. The results demonstrate that the synthetic exposure method provides accurate speckle contrast data over a wide range of exposures, channel diameters and flows. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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