Abstract: Synthetic Multi-Exposure Speckle Imaging (syMESI), in which with the use of conventional, conventionally substantially incapable of quantitative assessment of a motion (at a scene being imaged) LSCI apparatus, such quantitative results are obtained with the use of empirical imaging at only one, fixed-duration exposure time and the following transformation of the so-obtained raw speckle image(s) with the use of various spatial averaging to obtain speckle images representing multiple different synthetic exposure times and, optionally—speckle contrast images.

Abstract: A system configured to perform the DCS-type measurements with the use of low-coherence continuous-wave (CW) light source at levels of light intensities that are substantially lower and with pathlengths through the tissue that are substantially longer than those afforded by the use of conventional methods. The method includes utilizing the optical detection system to producing signals representing interference between the portion of CW light arriving through reference arm of interferometer and the sample CW light potion that has traversed the sample arm including different paths through the target tissue while switching between first and second of said different paths only by adjusting a delay in the delay line. The spatial resolution of different pathlengths of sample light through tissue is defined by coherence length of CW light.

Abstract: Methods and systems for agricultural monitoring are disclosed. The methods and systems include: projecting, by a light source, a coherent light output on at least a part of a plant material; acquiring, by an imaging device, one or more speckle images based on the coherent light output backscattered by at least the part of the plant material; providing the one or more speckle images to a trained machine learning algorithm; identifying one or more healthy status indications of at least the part of the plant material based on one or more outputs from the trained machine learning algorithm, the one or more outputs corresponding to the one or more speckle images; and providing plant health information based on the healthy status indication. Other aspects, embodiments, and features are also claimed and described.