Publications by authors named "Liangwei Meng"

Article Synopsis
  • * Optical flow analysis can achieve high spatial resolution in blood-flow velocity measurement by tracking red blood cell movement, yet traditional methods face issues with background noise and underestimating flow speed.
  • * The proposed method, TPIOF, employs temporal direction filtering and peak interpolation to reduce background noise and enhance blood-flow speed accuracy, validated through both in vitro and in vivo experiments.
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Simultaneous imaging of multiple hemodynamic parameters helps to evaluate the physiological and pathological status of biological tissue. To achieve multimodal hemodynamics imaging with a large field of view, an infinite conjugate relay lens system compatible with the standard C-Mount camera lens is designed to adapt one camera lens with multiple CCD/CMOS cameras for simultaneously multi-wavelength imaging. Using this relay lens system, dual wavelength reflectance imaging and laser speckle contrast imaging were combined to simultaneously detect the changes in blood flow, oxygenation, and hemoglobin concentrations.

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Imaging through a scattering medium has been a main challenge in modern optical imaging field. Recently, imaging through scattering medium based on wavefront shaping has been reported. However, it has not been clearly investigated to apply the optical memory effect based iterative wavefront shaping technique in speed estimation of a moving object through scattering medium.

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