System for reconstructing optical properties in a diffusing medium, comprising a pulsed radiation source and at least two detectors of two different types, and associated reconstruction method

摘要

A system for reconstructing optical properties of a diffusing medium including at least one pulsed radiation source capable of illuminating the diffusing medium, at least one first detector of a first type, capable of receiving a signal emitted by the medium, the first detector being a time-resolved detector, and an information processing unit for processing at least one source—first detector pair, a time distribution of the signal received by the corresponding first detector. The reconstruction system also includes at least one second detector of a second type, each second detector being made up of a set of pixel(s) from an image sensor capable of acquiring an image of the medium, and the second detector being capable of measuring an intensity of the signal emitted by the medium, the intensity corresponding to an equivalent moment of order 0 for the corresponding source—second detector pair.

主权项

1. A system for reconstructing optical properties of a diffusing medium, the reconstruction system comprising:
at least one pulsed radiation source capable of illuminating the diffusing medium, at least one first detector of a first type, capable of receiving a signal emitted by the medium, the at least one first detector being a time-resolved detector, a processing unit connected to the at least one first detector, for at least one source—first detector pair, the processing unit producing a time distribution of the signal received by the corresponding first detector, at least one second detector of a second type distinct from the first type, the at least one second detector being made up of a set of pixel(s) from an image sensor capable of acquiring an image of the medium, the at least one second detector being capable of measuring an intensity of the signal emitted by the medium, said intensity corresponding to an equivalent moment of order 0 for the corresponding source—second detector pair, and said processing unit computing at least one base parameter by combining a magnitude that is characteristic of the time distribution corresponding to at least one source—first detector pair with the intensity measured for at least one source—second detector pair, the optical properties being reconstructed from the computed base parameter.