# US 10,307,129 B2 · Apparatus and method for reconstructing tomography images using motion information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,129 B2 - Document ID: US10307129B2 - Status: Granted - Kind: B2 - Application number: 15/228,530 - Filed: 2016-08-04 - Published: 2017-03-02 - Granted: 2019-06-04 - Earliest claimed: 2015-08-27 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Kyoung-yong Lee; Do-il Kim; Toshihiro Rifu; Duhgoon Lee - Web page: https://patentgrep.com/patent/US10307129B2 ## CPC - A61B 6/5264: {due to motion} - A61B 6/027: {characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral} - A61B 6/032: {Transmission computed tomography [CT]} - A61B 6/0407: {Supports, e.g. tables or beds, for the body or parts of the body} - A61B 6/4007: {characterised by using a plurality of source units} - A61B 6/4447: {Tiltable gantries} - A61B 6/482: {involving multiple energy imaging} - A61B 6/5205: {involving processing of raw data to produce diagnostic data} - G06T 11/003 - G06T 11/005 - G06T 12/00: Tomographic reconstruction from projections - G06T 12/10: Image preprocessing, e.g. calibration, positioning of sources or scatter correction - G06T 2211/408: Dual energy - G06T 2211/436: Limited angle - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract Provided is a tomography apparatus including: a data acquisitor configured to obtain a first image by using tomography data acquired as a first X-ray generator for generating X-rays having a first energy rotates around an object over a first angular range and obtain a second image by using tomography data acquired as a second X-ray generator for generating X-rays having a second energy rotates around the object over a second angular range; a controller configured to acquire motion information representing an amount of motion of the object over time by using the first and second images; and an image reconstructor configured to reconstruct a target image showing the object at a target time point by using the motion information. ## Claims ### Claim 1 A tomography apparatus comprising at least one processor configured to: obtain a first image using first tomography data acquired as a first X-ray generator for generating X-rays having a first energy rotates around an object over a first angular range, and to obtain a second image using second tomography data acquired as a second X-ray generator for generating X-rays having a second energy rotates around the object over a second angular range different from the first angular range; determine motion information representing an amount of motion of the object over time using the first image and the second image; and reconstruct a target image showing the object at a target time point using the motion information. ### Claim 2 (depends on 1) The tomography apparatus of claim 1, wherein the first image and the second image are partial images, and the first angular range is opposite to the second angular range. ### Claim 3 (depends on 1) The tomography apparatus of claim 1, wherein each of the first angular range and the second angular range is less than 180 degrees. ### Claim 4 (depends on 1) The tomography apparatus of claim 1, wherein the motion information comprises information representing an amount of motion of a surface forming the object. ### Claim 5 (depends on 1) The tomography apparatus of claim 1, wherein the at least one processor is further configured to predict an amount of motion of the object at the target time point based on the motion information, and to reconstruct the target image based on the predicted amount of motion. ### Claim 6 (depends on 1) The tomography apparatus of claim 1, wherein the at least one processor is further configured to acquire two pieces of tomography data corresponding to an angular range of 180 degrees and an extra angle by respectively using the first x-ray generator and the second X-ray generator, wherein the extra angle is in a range of 30 degrees to 70 degrees. ### Claim 7 (depends on 1) The tomography apparatus of claim 1, wherein the at least one processor is further configured to reconstruct the target image based on a first reconstructed image and a second reconstructed image, the first reconstructed image and the second reconstructed image being generated based on the first tomography data and the second tomography data acquired during the rotation of the first x-ray generator and the second X-ray generator using the motion information. ### Claim 8 (depends on 7) The tomography apparatus of claim 7, wherein the at least one processor is further configured to reconstruct the target image by performing image registration between the first reconstructed image and the second reconstructed image. ### Claim 9 A tomography apparatus comprising at least one processor configured to: obtain a first partial image using first tomography data acquired as a first X-ray generator for generating X-rays having a first energy and a second X-ray generator for generating X-rays having a second energy rotate around an object over a first angular range and a second angular range different from the first angular range, and to obtain a second partial image using second tomography data acquired as the first x-ray generator and the second X-ray generator rotate around the object over the second angular range and a third angular range opposite to the first angular range; acquire motion information representing an amount of motion of the object over time by using the first partial image and the second partial image; and reconstruct a target image showing the object at a target time point by using the motion information. ### Claim 10 (depends on 9) The tomography apparatus of claim 9, wherein each of the first angular range, the second angular range, and the third angular range is less than 180 degrees. ### Claim 11 (depends on 9) The tomography apparatus of claim 9, wherein the first x-ray generator is spaced apart from the second X-ray generator by a 90-degree interval. ### Claim 12 (depends on 11) The tomography apparatus of claim 11, wherein the at least one processor is further configured to acquire the first tomography data and the second tomography data as the first x-ray generator and the second X-ray generator rotate around the object by 90 degrees and an extra angle, and wherein the extra angle is less than or equal to 90 degrees. ### Claim 13 (depends on 9) The tomography apparatus of claim 9, wherein the at least one processor is further configured to acquire third tomography data corresponding to an angular range of 180 degrees and an extra angle by using the first x-ray generator and the second X-ray generator, and wherein the extra angle is in a range of 30 degrees to 70 degrees. ### Claim 14 (depends on 9) The tomography apparatus of claim 9, wherein the at least one processor is further configured to reconstruct the target image based on a first reconstructed image and a second reconstructed image, the first reconstructed image and the second reconstructed image being based on the first tomography data and the second tomography data acquired during rotation of the first x-ray generator and the second X-ray generator using the motion information. ### Claim 15 (depends on 14) The tomography apparatus of claim 14, wherein the at least one processor is further configured to reconstruct the target image by performing image registration between the first reconstructed image and the second reconstructed image. ### Claim 16 A method of reconstructing a tomography image, the method comprising: obtaining a first image using first tomography data acquired as a first X-ray generator for generating X-rays having a first energy rotates around an object over a first angular range, and obtaining a second image using second tomography data acquired as a second X-ray generator for generating X-rays having a second energy rotates around the object over a second angular range different from the first angular range; determining motion information representing an amount of motion of the object over time by using the first image and the second image; and reconstructing a target image showing the object at a target time point using the motion information. ### Claim 17 (depends on 16) The method of claim 16, wherein the first image and the second image are partial images, and the first angular range is opposite to the second angular range, and wherein each of the first angular range and the second angular range is less than 180 degrees. ### Claim 18 (depends on 16) The method of claim 16, wherein the motion information comprises information representing an amount of motion of a surface forming the object. ### Claim 19 (depends on 16) The method of claim 16, wherein the reconstructing of the target image comprises predicting an amount of motion of the object at the target time point based on the motion information, and reconstructing the target image based on the predicted amount of motion. ### Claim 20 (depends on 16) The method of claim 16, wherein the reconstructing of the target image comprises reconstructing the target image based on a first reconstructed image and a second reconstructed image, the first reconstructed image and the second reconstructed image being generated based on the first tomography data and the second tomography data acquired during rotation of the first x-ray generator and the second X-ray generator using the motion information.