CPC A61B 5/0082 (2013.01) [A61B 5/6803 (2013.01); A61B 5/742 (2013.01); G01J 1/44 (2013.01); G01J 2001/442 (2013.01); G01J 2001/4466 (2013.01); G04F 10/005 (2013.01)] | 49 Claims |
1. A system comprising:
a plurality of photodetectors connected in parallel, respective outputs from each of the plurality of photodetectors each comprising a predetermined amount of current output when a respective photodetector included in the plurality of photodetectors detects a photon of a light pulse after the light pulse reflects from a target within a body;
an analog-to-digital converter (ADC) coupled to the plurality of photodetectors;
a terminating component configured to convert a combined current of an accumulated output from the plurality of photodetectors to an output voltage;
a plurality of sampling branches connected in parallel with the terminating component, each sampling branch of the plurality of sampling branches comprising a switch and a capacitor; and
a processor communicatively coupled to the plurality of photodetectors and the ADC, the processor configured to:
receive the accumulated output from the plurality of photodetectors, the accumulated output representing an accumulation of the respective outputs from each of the plurality of photodetectors detecting photons during a predetermined measurement time period that occurs in response to the light pulse being directed toward the target within the body;
determine, based on the accumulated output, a temporal distribution of photons detected by the plurality of photodetectors by directing the ADC to sample the output voltage; and
generate, based on the temporal distribution of photons, a histogram representing a light pulse response of the target within the body.
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