Laser speckle contrast imaging (LSCI), also called laser speckle imaging (LSI), is an imaging modality based on the analysis of the blurring effect of the speckle pattern. The operation of LSCI is having a wide-field illumination of a rough surface through a coherent light source.

Laser Speckle Contrast Imaging (LSCI) is a wide field of view, non scanning optical technique for observing blood flow. Speckles are produced when coherent light scattered back from biological tissue is diffracted through the limiting aperture of focusing optics.

Laser speckle contrast imaging basically requires an illumination system, optical equipment and a CCD camera. A laser diode controlled by a laser power unit and a collimation kit are used to illuminate the surface. Visible red light or infrared range lasers can be used (700 to 920 nm).

Image any exposed tissue (skin or surgically exposed tissues) and species. Non-contact, non-contrast agent depending measurement. Best optical resolution of 3.9 μm/pixel, providing more detailed tissue structures. Max frame rate (full field) up to …

Laser speckle contrast imaging (LSCI) has emerged over the past decade as a powerful, yet simple, method for imaging of blood flow dynamics in real time. The rapid adoption of LSCI for physiological studies is due to the relative ease and low cost ...

2019年2月22日 · Laser speckle contrast imaging (LSCI), through a simple camera exposure, provides a rapid wide field characterization of the motion of light scattering particles 1.

2023年10月20日 · Here we combine simulation, theory and animal experiments to systematically evaluate and re-analyze the role of key factors defining LSCI precision—speckle-to-pixel size ratio,...

We develop blood flow imaging systems based on laser speckle contrast imaging (LSCI) to study the effects of ischemic stroke and to better understand the physics of dynamic light scattering.

Recently laser speckle contrast imaging has gained increased attention, in part due to its rapid adoption for blood flow studies in the brain. We review the underlying physics of speckle contrast imaging and discuss recent de-velopments to improve the …

When laser light illuminates a diffuse object, it produces a random interference effect known as a speckle pattern. If there is movement in the object, the speckles fluctuate in intensity. These fluctuations can provide information about the movement.