US 12,419,587 B2
Up-sampling of signals by analytic phase projection
Henning U. Voss, New York, NY (US)
Assigned to Cornell University, Ithaca, NY (US)
Appl. No. 17/046,371
Filed by Cornell University, Ithaca, NY (US)
PCT Filed Apr. 10, 2019, PCT No. PCT/US2019/026775
§ 371(c)(1), (2) Date Oct. 9, 2020,
PCT Pub. No. WO2019/199960, PCT Pub. Date Oct. 17, 2019.
Claims priority of provisional application 62/655,970, filed on Apr. 11, 2018.
Prior Publication US 2021/0128077 A1, May 6, 2021
Int. Cl. A61B 5/00 (2006.01); A61B 5/055 (2006.01); A61B 5/31 (2021.01)
CPC A61B 5/7289 (2013.01) [A61B 5/055 (2013.01); A61B 5/31 (2021.01); A61B 5/7253 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method of imaging a subject via analytic phase projection, the method comprising:
acquiring, by a computing device including one or more processors, physiological data of the subject over a predetermined time period, the physiological data comprising (i) a reference signal from a first system, and (ii) a time series of numbers or images from a second system, wherein the reference signal comprises a plurality of periods of a quasi-periodic process, and wherein the time series of numbers or images corresponds to an unordered sequence of images of the quasi-periodic process;
filtering, by the computing device, the reference signal to obtain a monocomponent signal;
determining, by the computing device, by performing a transform operation on the monocomponent signal, an analytic phase;
generating, by the computing device, a phase projected signal from the time series of numbers or images based on the analytic phase, wherein generating the phase projected signal reorders the unordered sequence of images to time-resolve the quasi-periodic process;
rendering, by the computing system, based at least in part on the phase projected signal, an ordered sequence of images corresponding to the quasi-periodic process; and
displaying, by the computing device, the ordered sequence of images to visually depict the quasi-periodic process.