CN102376096B - Pi线选取和采样方法和装置以及ct图像重建方法和装置 - Google Patents
Pi线选取和采样方法和装置以及ct图像重建方法和装置 Download PDFInfo
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- CN102376096B CN102376096B CN201010257010.5A CN201010257010A CN102376096B CN 102376096 B CN102376096 B CN 102376096B CN 201010257010 A CN201010257010 A CN 201010257010A CN 102376096 B CN102376096 B CN 102376096B
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000005070 sampling Methods 0.000 title claims abstract description 43
- 238000002591 computed tomography Methods 0.000 title description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 10
- 210000000746 body region Anatomy 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000009206 nuclear medicine Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/416—Exact reconstruction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/421—Filtered back projection [FBP]
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Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN201010257010.5A CN102376096B (zh) | 2010-08-18 | 2010-08-18 | Pi线选取和采样方法和装置以及ct图像重建方法和装置 |
PCT/CN2011/073654 WO2012022171A1 (zh) | 2010-08-18 | 2011-05-04 | Pi线选取和采样方法和装置以及ct图像重建方法和装置 |
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CN201010257010.5A CN102376096B (zh) | 2010-08-18 | 2010-08-18 | Pi线选取和采样方法和装置以及ct图像重建方法和装置 |
Publications (2)
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CN102376096A CN102376096A (zh) | 2012-03-14 |
CN102376096B true CN102376096B (zh) | 2014-01-29 |
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CN201010257010.5A Active CN102376096B (zh) | 2010-08-18 | 2010-08-18 | Pi线选取和采样方法和装置以及ct图像重建方法和装置 |
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CN (1) | CN102376096B (zh) |
WO (1) | WO2012022171A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105701847A (zh) * | 2016-01-14 | 2016-06-22 | 重庆大学 | 一种改进权系数矩阵的代数重建方法 |
CN106228584B (zh) * | 2016-07-20 | 2019-08-13 | 中国人民解放军信息工程大学 | 锥束ct圆加直线轨迹反投影滤波重建方法 |
CN108022229A (zh) * | 2016-10-31 | 2018-05-11 | 北京东软医疗设备有限公司 | 一种图像处理方法及装置 |
CN109685867B (zh) * | 2018-12-29 | 2023-05-30 | 上海联影医疗科技股份有限公司 | 一种ct系统、图像重建方法、装置、设备及介质 |
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US5270923A (en) * | 1989-11-02 | 1993-12-14 | General Electric Company | Computed tomographic image reconstruction method for helical scanning using interpolation of partial scans for image construction |
CN101404088B (zh) * | 2008-11-05 | 2011-10-26 | 华中科技大学 | Ct图像重建的方法及系统 |
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2010
- 2010-08-18 CN CN201010257010.5A patent/CN102376096B/zh active Active
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2011
- 2011-05-04 WO PCT/CN2011/073654 patent/WO2012022171A1/zh active Application Filing
Non-Patent Citations (6)
Title |
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A general exact method for synthesizing parallel-beam projections from cone-beam projections via filtered backprojection;Liang Li etc.;《PHYSICS IN MEDICINE AND BIOLOGY》;20061231;第51卷;5643-5654 * |
Liang Li etc..A general exact method for synthesizing parallel-beam projections from cone-beam projections via filtered backprojection.《PHYSICS IN MEDICINE AND BIOLOGY》.2006,第51卷5643-5654. |
Liang Li etc..The FDK algorithm with an expanded definition domain for cone-beam reconstruction preserving oblique line integrals.《Journal of X-Ray Science and Technology》.2006,第14卷217-233. |
The FDK algorithm with an expanded definition domain for cone-beam reconstruction preserving oblique line integrals;Liang Li etc.;《Journal of X-Ray Science and Technology》;20061231;第14卷;217-233 * |
基于平行PI线段的平行束CT重建;谷建伟等;《清华大学学报(自然科学版)》;20070330;第47卷(第3期);第393页右栏倒数第3-1段,图1及2,第394页右栏第3段,第395页右栏第6-7行,第394页左栏第2段 * |
谷建伟等.基于平行PI线段的平行束CT重建.《清华大学学报(自然科学版)》.2007,第47卷(第3期),第393页右栏倒数第3-1段,图1及2,第394页右栏第3段,第395页右栏第6-7行,第394页左栏第2段. |
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CN102376096A (zh) | 2012-03-14 |
WO2012022171A1 (zh) | 2012-02-23 |
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Inventor after: Xing Yuxiang Inventor after: Zhang Li Inventor after: Chen Zhiqiang Inventor after: Zhang Wenyu Inventor after: Zhao Ziran Inventor after: Xiao Yongshun Inventor after: Li Liang Inventor after: Huang Zhifeng Inventor before: Xing Yuxiang Inventor before: Zhang Li Inventor before: Chen Zhiqiang Inventor before: Zhang Wenyu Inventor before: Zhao Ziran Inventor before: Xiao Yongshun Inventor before: Li Liang Inventor before: Huang Zhifeng |