US 12,488,490 B2
Estimating distances between multiple point image sources with quantum imaging
Hari Kiran Krovi, Lexington, MA (US)
Assigned to RTX BBN TECHNOLOGIES, INC., Cambridge, MA (US)
Filed by RAYTHEON BBN TECHNOLOGIES, CORP., Cambridge, MA (US)
Filed on May 27, 2022, as Appl. No. 17/827,568.
Claims priority of provisional application 63/283,957, filed on Nov. 29, 2021.
Prior Publication US 2023/0168084 A1, Jun. 1, 2023
Int. Cl. G06T 7/70 (2017.01); G01C 3/08 (2006.01); G02B 27/10 (2006.01)
CPC G06T 7/70 (2017.01) [G01C 3/08 (2013.01); G02B 27/10 (2013.01); G06T 2207/20056 (2013.01); G06T 2207/20076 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for estimating separation distances between a plurality of image sources in a multi-point source imaging system, the method comprising:
receiving a plurality of light beams, each from a respective image source and having a quantum state mode;
constructing a point spread function (PSF) for light beams specific to a symmetry of the image sources;
calculating a quantum Fourier transform on the quantum state mode of the plurality of light beams that achieves a quantum limit in a paraxial approximation regime to estimate separation of image sources at the quantum limit to transform the light beams;
detecting the transformed light beams to generate electrical signals from respective transformed light beams; and
performing signal processing on the electrical signals to estimate the separation distances between the plurality of image sources.