Patent ID: 11972510
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  A | IPC G

Claim 12:
13. A method of generating a tomography image, the method comprising:
acquiring N pieces of projection data respectively corresponding to N views included in a first angular range;
obtaining, based on M pieces of projection data respectively corresponding to M views among the N views, a final weight map applied when the N pieces of projection data are back-projected; and
generating a final tomography image showing an object by using the final weight map and the N pieces of projection data;
generating a first image by correcting, based on the final weight map, N edge images respectively representing edge information in the N pieces of projection data and then back-projecting the corrected N edge images,
wherein the generating of the final tomography image comprises generating the final tomography image by using the first image,
wherein the generating of the final tomography image comprises:
generating a first corrected image by correcting a pixel value of a region corresponding to a material having a high X-ray attenuation rate compared to its surrounding region included in the first image; and
generating the final tomography image by performing frequency modulation transformations respectively on the first image and the first corrected image and blending a frequency modulation-transformed first image with a frequency modulation-transformed first corrected image,

wherein the frequency modulation transformation is Hilbert transform, and
wherein the blending comprises selectively capturing one of the Hilbert-transformed first image and the Hilbert-transformed first corrected image having larger pixel values.