Patent ID: 11893662
Assignee: NORTHWESTERN UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G  A | IPC G

Claim 11:
12. A method for reconstructing an image, the method comprising:
receiving, by a transceiver of a computing system, imaging data, wherein the imaging data comprises k-space data or projection data resulting from a scan of a patient;
identifying, by a processor of the computing system, a degree of interaction between measured points of the k-space data or measured points of the projection data;
determining, by the processor and based at least in part on the degree of interaction between the measured points, density weights for a density compensation filter;
applying, by the processor, the density compensation filter to the projection data to generate filtered projection data or to the k-space data to generate filtered k-space data; and
converting, by the processor, the filtered projection data or the filtered k-space data from a polar coordinate system to a Cartesian coordinate system by way of gridding, wherein the conversion results in filtered and gridded projection data or filtered and gridded k-space data with uniform density weights across k-space; and
performing, by the processor, a Fourier transform based at least in part on the filtered and gridded k-space data or a Radon transform based at least in part on the filtered and gridded projection data to generate an image of the patient.