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US 12,507,895 B2Granted
GDOT: gated diffuse optical tomography
AssigneeWilliam Marsh Rice University
InventorsYongyi Zhao, Ankit Raghuram, Ashok Veeraraghavan, Jacob Robinson
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Abstract
A system for imaging a target embedded in a scattering media includes: one or more light sources that are pulsed lights at one or more wavelengths in a range of visible to near-infrared; a detector, including a photodetector array with a time-gating function, configured to collect a scattered light after a gate start time; and a processor configured to determine an image of the target based on the scattered light.
Claims17
A system for imaging a target embedded in a scattering media, comprising:
- one or more light sources that are pulsed lights at one or more wavelengths in a range of visible to near-infrared;
- a detector, including a photodetector array with a time-gating function, configured to collect a scattered light after a gate start time;
- and
- a processor configured to use an algorithm to determine an image of the target based on the scattered light,
- wherein
- the system has a confocal geometry using spatial filtering through a pinhole rejecting out-of-plane scattered photons, and
- the algorithm includes a forward model based on Monte Carlo and applying convolutional approximation.
4 more elements
A method of imaging a target in a scattering media, comprising:
- generating one or more light sources that are pulsed lights at one or more wavelengths in a range of visible to near-infrared;
- detecting a scattered light after a gate start time with a detector, including a photodetector array with a time-gating function;
- rejecting out-of-plane scattered photons in the scattered light using spatial filtering through a pinhole;
- and
- determining an image of the target based on the scattered light, using an algorithm including a forward model based on Monte Carlo and applying convolutional approximation.
2 more elements
Dependencies are inferred from the claim text.