System, computing device, and method for extraction of optical properties of turbid medium by using diffuse reflectometry

A user computing device for extraction of optical properties of a turbid medium, the user computing device comprising:

• at least one light source configured to provide radiation to the turbid medium in a radiation input area of the at least one light source;
• an optical receiver configured to receive radiation, passed through the turbid medium, in a radiation receiving area of the optical receiver to obtain a distribution of radiation intensity, wherein the optical receiver comprises an array of liquid crystal (LC) cells, an array of microlenses, and an array of photodetectors which are aligned so that each LC cell from the array of LC cells corresponds to a corresponding microlens from the array of microlenses and to a corresponding photodetector from the array of photodetectors;
• at least one separator configured to separate the radiation input area of the at least one light source from the radiation receiving area of the optical receiver, and configured to prevent radiation, partially reflected from a surface of the turbid medium in the radiation input area of the at least one light source, from entering the radiation receiving area of the optical receiver;
• and
• a processor configured to:
• control the optical receiver, while the radiation is provided to the turbid medium in the radiation input area of the at least one light source, to sequentially open each LC cell from the array of LC cells, and simultaneously detect radiation, passed through the sequentially opened LC cells, by corresponding photodetectors from the array of photodetectors to obtain the distribution of radiation intensity;
• and
• extract the optical properties of the turbid medium based on the obtained distribution of radiation intensity.

A method for extraction of optical properties of a turbid medium, the method comprising:

• providing radiation to an illumination area on a surface of the turbid medium while simultaneously preventing radiation, partially reflected from the surface of the turbid medium surface in the illumination area, from entering a target area of an optical receiver comprising an array of LC cells, an array of microlenses, and an array of photodetectors which are aligned so that each LC cell from the array of LC cells corresponds to a corresponding microlens from the array of microlenses and to a corresponding photodetector from the array of photodetectors;
• sequentially opening each LC cell from the array of LC cells;
• detecting radiation, passed through the sequentially opened LC cells, by corresponding photodetectors from the array of photodetectors;
• obtaining a plurality of radiation intensity values which represents a distribution of radiation intensity;
• and
• determining the optical properties of the turbid medium based on the distribution of radiation intensity.