Laser speckle correlation imaging with optical clearance for blood flows

Jing Hou; Renjian Li; Weiming Sun; Xuekun Lv; Lipei Song; Lingling Chen

doi:10.1117/12.2537837

20 November 2019 Laser speckle correlation imaging with optical clearance for blood flows

Jing Hou, Renjian Li, Weiming Sun, Xuekun Lv, Lipei Song, Lingling Chen

Proceedings Volume 11190, Optics in Health Care and Biomedical Optics IX; 111903C (2019) https://doi.org/10.1117/12.2537837
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

In laser speckle imaging methods, speckle correlation coefficient analysis (SCCA) shows great potential in blood flow monitoring because of its high sensitivity to slow flows than laser speckle contrast imaging (LSCI). But the published SCCA usually depends on short exposure times and high frame rates to preserve the autocorrelation. Differently, in this paper we use SCCA at normal exposure time (20 ms) to evaluate the performance of skin optical clearing (SOC) and demonstrate that SCCA with long exposure time also significantly improves the ability to image large range of flow speeds over LSCI.

Citation Download Citation

Jing Hou, Renjian Li, Weiming Sun, Xuekun Lv, Lipei Song, and Lingling Chen "Laser speckle correlation imaging with optical clearance for blood flows", Proc. SPIE 11190, Optics in Health Care and Biomedical Optics IX, 111903C (20 November 2019); https://doi.org/10.1117/12.2537837

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