Patent ID: 11927700
Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The system of claim 1, wherein the at least one hardware processor is further programmed to:
generate, for each of the plurality of pixel locations, a second set of photon transients including a photon transient associated with that pixel location and photon transients associated with neighboring pixel locations based on the photon flux estimates;
associate, for each second set of photon transients, one or more sets of photon transients corresponding to the one or more similar scene patches to the scene patch associated with that set of photon transients, thereby generating a plurality of 4D sets of photon transients;
calculate, for each of the plurality of 4D sets of photon transients, a plurality of transform coefficients;
estimate, for each set of photon transients, a noise level based on a noise band and the plurality of transform coefficients calculated for that 4D set of photon transients,
wherein the noise band is based on a profile of a light source used to generate the photon transients;

modify, for each 4D set of photon transients, at least a subset of the plurality of transform coefficients based on the noise level, thereby generating a third plurality of modified transform coefficients;
calculate, for each 4D set of photon transients, an inverse transform using the third plurality of modified transform coefficients associated with that set of photon transients,
wherein the inverse transform produces a third set of modified photon transients;

generate, for each pixel location, second photon flux estimates based on each modified photon transient associated with that pixel location in the third set of modified photon transients.