Snapshot temporal speckle correlation analysis via rolling shutter speckle imaging

Changyoon Yi; Sangjun Byun; Yujin Lee; Kyung Chul Lee; Donggeon Bae; Seung Ah Lee

doi:10.1117/12.3009715

13 March 2024 Snapshot temporal speckle correlation analysis via rolling shutter speckle imaging

Changyoon Yi, Sangjun Byun, Yujin Lee, Kyung Chul Lee, Donggeon Bae, Seung Ah Lee

Proceedings Volume PC12853, High-Speed Biomedical Imaging and Spectroscopy IX; PC1285304 (2024) https://doi.org/10.1117/12.3009715
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

We present rolling shutter speckle imaging (RSSI), a single-shot temporal speckle imaging technique that can quantitatively measure the fast dynamics of scattering media without high speed cameras. Utilizing a rolling shutter image sensor and vertically elongated speckles, RSSI can quantitatively map the speckle dynamics from a single image capture. We discuss the speckle spatiotemporal intensity correlation model for RSSI, which is validated through simulations and phantom experiments. We show in vivo quantitative blood flow imaging of the mouse brain from a snapshot measurement. In addition to imaging, we also present rolling shutter speckle plethysmography for cardiovascular monitoring.

Conference Presentation

Citation Download Citation

Changyoon Yi, Sangjun Byun, Yujin Lee, Kyung Chul Lee, Donggeon Bae, and Seung Ah Lee "Snapshot temporal speckle correlation analysis via rolling shutter speckle imaging", Proc. SPIE PC12853, High-Speed Biomedical Imaging and Spectroscopy IX, PC1285304 (13 March 2024); https://doi.org/10.1117/12.3009715

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KEYWORDS

Speckle

Camera shutters

Speckle imaging

Biological imaging

Blood circulation

Scattering media

Tissues

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