Abstract
Laser speckle imaging (LSI) is a non-invasive optical imaging technique able to provide wide-field two-dimensional maps of blood flow. The observer can either define different sizes for the region of interest to reduce the spatial variability or different time duration over which the blood flow values are averaged to decrease temporal variability. In this paper, we present a new algorithm for integrated speckle contrast, which accounts not only for temporal integration but for spatial integration as well, using a low time – consuming efficient algorithm. As a result, we find that an efficiency factor should be introduced to the measured speckle contrast to properly normalize and eliminate background noise; otherwise, the measured contrast is affected. Furthermore, we demonstrate its feasibility for relative flow speed assessing.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Optik - International Journal for Light and Electron Optics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
