<unk>  (LSCI) which can also be called laser<unk>  imaging (LSI) is an imaging modality based on the analysis of the blurring effect of the<unk>  pattern. The operation of LSCI is having a wide-field illumination of a rough surface through a coherent light source. Then using photodetectors such as CCD camera or CMOS sensors imaging the resulting laser<unk>  pattern caused by the interference of coherent light. In biomedical use, the coherent light is typically in the red or near-infrared region to ensure higher penetration depth. When scattering particles moving during the time, the interference caused by the coherent light will have fluctuations which will lead to the intensity variations detected via the photodetector, and this change of the intensity contain the information of scattering particles' motion. Through image the<unk>  patterns with finite exposure time, areas with scattering particles will appear blurred.
Laser speckle contrast imaging
Laser Doppler imaging
Fluorescein angiography
Colorimetric capnography
Digital variance angiography
Diffuse optical imaging
Optical coherence tomography angiography
Multiple scattering low coherence interferometry