Title:
LOW-DOSE CONE BEAM COMPUTED TOMOGRAPHY IMAGING SYSTEM USING NON-LOCAL TOTAL VARIATION DENOISING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/030816
Kind Code:
A1
Abstract:
According to the present invention, disclosed is a low-dose cone beam computed tomography imaging system using a non-local total variation denoising method, the system using a non-local total variation objective function to correct preprocessed projection data so that a structure having high contrast maintains original features and enhances image quality.
Inventors:
LEE HO (KR)
LEE IK JAE (KR)
LEE IK JAE (KR)
Application Number:
PCT/KR2021/009327
Publication Date:
February 10, 2022
Filing Date:
July 20, 2021
Export Citation:
Assignee:
UIF UNIV INDUSTRY FOUNDATION YONSEI UNIV (KR)
International Classes:
G06T11/00; A61B6/00; A61B6/03; G06T3/40; G06T5/00; G06T15/08
Foreign References:
| KR20200083122A | 2020-07-08 | |||
| KR101076321B1 | 2011-10-26 |
Other References:
KIM KYUNGSANG, EL FAKHRI GEORGES, LI QUANZHENG: "Low-dose CT reconstruction using spatially encoded nonlocal penalty", MEDICAL PHYSICS., AIP, MELVILLE, NY., US, vol. 44, no. 10, 1 October 2017 (2017-10-01), US , pages e376 - e390, XP055893804, ISSN: 0094-2405, DOI: 10.1002/mp.12523
LEE HO, YOON JEONGMIN, LEE EUNGMAN: "Anisotropic Total Variation Denoising Technique for Low-Dose Cone-Beam Computed Tomography Imaging", PROGRESS IN MEDICAL PHYSICS, vol. 29, no. 4, 1 January 2018 (2018-01-01), pages 150, XP055893812, ISSN: 2508-4445, DOI: 10.14316/pmp.2018.29.4.150
CHEN YINGXUAN, YIN FANG-FANG, ZHANG YAWEI, ZHANG YOU, REN LEI: "Low dose cone-beam computed tomography reconstruction via hybrid prior contour based total variation regularization (hybrid-PCTV)", QUANTITATIVE IMAGING IN MEDICINE AND SURGERY, vol. 9, no. 7, 1 July 2019 (2019-07-01), pages 1214 - 1228, XP055893817, ISSN: 2223-4292, DOI: 10.21037/qims.2019.06.02
LEE HO, YOON JEONGMIN, LEE EUNGMAN: "Anisotropic Total Variation Denoising Technique for Low-Dose Cone-Beam Computed Tomography Imaging", PROGRESS IN MEDICAL PHYSICS, vol. 29, no. 4, 1 January 2018 (2018-01-01), pages 150, XP055893812, ISSN: 2508-4445, DOI: 10.14316/pmp.2018.29.4.150
CHEN YINGXUAN, YIN FANG-FANG, ZHANG YAWEI, ZHANG YOU, REN LEI: "Low dose cone-beam computed tomography reconstruction via hybrid prior contour based total variation regularization (hybrid-PCTV)", QUANTITATIVE IMAGING IN MEDICINE AND SURGERY, vol. 9, no. 7, 1 July 2019 (2019-07-01), pages 1214 - 1228, XP055893817, ISSN: 2223-4292, DOI: 10.21037/qims.2019.06.02
Attorney, Agent or Firm:
WOOIN PATENT & LAW FIRM (KR)
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