JP5038642B2 - ボリュメトリック画像強調システム及び方法 - Google Patents
ボリュメトリック画像強調システム及び方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 64
- 238000012545 processing Methods 0.000 claims description 37
- 238000001914 filtration Methods 0.000 claims description 15
- 238000004141 dimensional analysis Methods 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 description 35
- 238000004458 analytical method Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 20
- 238000009499 grossing Methods 0.000 description 15
- 239000011159 matrix material Substances 0.000 description 9
- 230000011218 segmentation Effects 0.000 description 9
- 230000005855 radiation Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000002591 computed tomography Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002595 magnetic resonance imaging Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 3
- 238000010606 normalization Methods 0.000 description 3
- 210000003484 anatomy Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
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Images
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-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/70—Denoising; Smoothing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/73—Deblurring; Sharpening
-
- 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
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/548—Remote control of the apparatus or devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20004—Adaptive image processing
- G06T2207/20012—Locally adaptive
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20172—Image enhancement details
- G06T2207/20192—Edge enhancement; Edge preservation
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
- Image Generation (AREA)
- Image Analysis (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Description
傾斜規模は3D成分に関して計算されているが、傾斜の方向はその画像面または投影を規定している2つの次元に関してのみに計算される。このコンテキストでは、方向は次の関係式に従って計算される。
圧縮済み画像内の各画素に関して傾斜の規模及び方向を計算し終えた後、最大及び最小の傾斜が決定されると共に、図6の工程90で示したような傾斜ヒストグラムが得られる。最大/最小傾斜は傾斜規模を基準として決定される。したがって、傾斜ヒストグラムはある特定の傾斜規模を有する個々の画素の数すなわちカウントを規定していることは当業者であれば理解されよう。この実現形態では、そのヒストグラムは、すべてのボクセルに関して、各ボクセルがそれ自身に関連付けされた1つの傾斜規模を有するようにした傾斜を有している。最大値及び最小値は、すべてのボクセルの各傾斜値にわたって計算される。このヒストグラムは、水平軸に沿って傾斜規模を、また垂直軸に沿って個々の各傾斜規模を有する画素カウントすなわち画素数を取った棒グラフとして表すことができる。しかし実際には、プロセッサは単に画素のアドレス、その傾斜値、及び各規模ごとのカウントを保存しているだけである。
上式において、inputの値はスムージングの開始時点の関心対象画素の値であり、pは1と200の間の荷重係数であり、またsmoothed valueは関心対象画素の優位方向における1×3カーネルの平均強度値である。
上式において、I(x,y,z)は再正規化済み、フィルタ処理済みかつ伸展済みの画像であり、「blend」は合成パラメータであり、A(x,y,z)は事前フィルタ処理済み画像である。
上式において、画像I(x,y,z)及びA(x,y,z)は上述したものと同じである。
12 イメージャ
14 対象
16 イメージャ制御回路
18 画像データ収集回路
20 システム制御回路
22 オペレータ・ワークステーション
24 記憶媒体
26 画像データ処理回路
28 リモート制御/処理/観察ステーション
30 ネットワーク・リンク
32 x方向
34 y方向
36 z方向
38 スラブ、スライス
40 画素
42 x方向ピッチ
44 y方向ピッチ
46 z方向ピッチ
48 画像
74 ボリューム部分
76 関心対象画素、中心画素
78 画素
80 画素
82 画素
102 Sobel演算子
104 行列
106 近傍域
Claims (9)
- 離散画素画像を強調するための方法であって、
画像データを2次元及び3次元(78、80、82)で解析すること(58)によって該画像データ内の構造性及び非構造性画素を同定する工程(60)と、
構造性及び非構造性画素の前記同定に基づいて前記画像データを2次元で追加処理する工程(62、64、66、68、70、72)と、
を含み、
前記構造性画素は3次元データから計算(88)した傾斜規模値及び2次元データから計算した傾斜方向値を基準として同定されている、
方法。 - 前記構造性画素は3次元傾斜規模値及び2次元傾斜方向値を含む判定基準の組み合わせに基づいて同定されている、請求項1に記載の方法。
- 前記構造性画素は所望のしきい値を超える傾斜規模及び所望の角度を超える傾斜角度を有する画素として同定されている、請求項2に記載の方法。
- 構造性及び非構造性画素を同定する前記工程は各画素の近傍にある画素(106)に対する3次元での解析に基づいている、請求項1に記載の方法。
- 構造性画素であると同定された画素に対する構造マスクが生成されている請求項1に記載の方法。
- 前記画像データは、画像面の2つの次元方向(X,Y)に第1のピッチを有しかつ該画像面と直交する第3の次元方向(Z)に該第1のピッチより大きい第3のピッチを有する画素をエンコードしている、請求項1に記載の方法。
- 前記追加処理の工程は前記同定された構造性及び非構造性画素を基準として前記画像データを2次元でフィルタ処理すること(62)を含む、請求項1に記載の方法。
- 前記追加処理の工程は原画像データから処理済み画像データへの合成(66)を含む、請求項1に記載の方法。
- 構造性画素は3次元スムージング(86)した原画像データに基づいて非構造性画素から識別されている、請求項1に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/092,487 US7512284B2 (en) | 2005-03-29 | 2005-03-29 | Volumetric image enhancement system and method |
US11/092,487 | 2005-03-29 |
Publications (2)
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JP2006271971A JP2006271971A (ja) | 2006-10-12 |
JP5038642B2 true JP5038642B2 (ja) | 2012-10-03 |
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JP2006082222A Active JP5038642B2 (ja) | 2005-03-29 | 2006-03-24 | ボリュメトリック画像強調システム及び方法 |
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Country | Link |
---|---|
US (1) | US7512284B2 (ja) |
JP (1) | JP5038642B2 (ja) |
FR (1) | FR2884013A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100484479C (zh) * | 2005-08-26 | 2009-05-06 | 深圳迈瑞生物医疗电子股份有限公司 | 超声图像增强与斑点抑制方法 |
US7929798B2 (en) * | 2005-12-07 | 2011-04-19 | Micron Technology, Inc. | Method and apparatus providing noise reduction while preserving edges for imagers |
US7925074B2 (en) * | 2006-10-16 | 2011-04-12 | Teradyne, Inc. | Adaptive background propagation method and device therefor |
FR2909207B1 (fr) * | 2006-11-24 | 2009-01-30 | Gen Electric | Procede de visualisation tridimensionnelle d'images de tomosynthese en mammographie. |
US8051386B2 (en) * | 2006-12-21 | 2011-11-01 | Sectra Ab | CAD-based navigation of views of medical image data stacks or volumes |
US8044972B2 (en) * | 2006-12-21 | 2011-10-25 | Sectra Mamea Ab | Synchronized viewing of tomosynthesis and/or mammograms |
US7992100B2 (en) * | 2006-12-21 | 2011-08-02 | Sectra Ab | Dynamic slabbing to render views of medical image data |
US8233683B2 (en) * | 2007-08-24 | 2012-07-31 | Siemens Aktiengesellschaft | Methods for non-linear image blending, adjustment and display |
US8086011B2 (en) * | 2007-10-31 | 2011-12-27 | Siemens Medical Solutions Usa, Inc. | Reconstructing a tomographic image |
US8553959B2 (en) * | 2008-03-21 | 2013-10-08 | General Electric Company | Method and apparatus for correcting multi-modality imaging data |
JP5670324B2 (ja) * | 2009-05-20 | 2015-02-18 | 株式会社日立メディコ | 医用画像診断装置 |
US8170318B2 (en) | 2009-06-05 | 2012-05-01 | Siemens Medical Solutions Usa, Inc. | Filter bank for ultrasound image enhancement |
US8786873B2 (en) * | 2009-07-20 | 2014-07-22 | General Electric Company | Application server for use with a modular imaging system |
US8594194B2 (en) * | 2009-10-15 | 2013-11-26 | Sony Corporation | Compression method using adaptive field data selection |
US8633997B2 (en) * | 2009-10-15 | 2014-01-21 | Sony Corporation | Block-based variational image processing method |
US8243882B2 (en) | 2010-05-07 | 2012-08-14 | General Electric Company | System and method for indicating association between autonomous detector and imaging subsystem |
TWI419078B (zh) * | 2011-03-25 | 2013-12-11 | Univ Chung Hua | 即時立體影像產生裝置與方法 |
US9824468B2 (en) * | 2015-09-29 | 2017-11-21 | General Electric Company | Dictionary learning based image reconstruction |
US9928403B2 (en) * | 2016-02-09 | 2018-03-27 | Molecular Devices, Llc | System and method for image analysis of multi-dimensional data |
CN109961487A (zh) * | 2017-12-14 | 2019-07-02 | 通用电气公司 | 放疗定位图像识别方法、计算机程序及计算机存储介质 |
CN110752004A (zh) * | 2019-10-25 | 2020-02-04 | 苏州大学 | 一种基于体素模型的呼吸特性表征的方法 |
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US5832134A (en) * | 1996-11-27 | 1998-11-03 | General Electric Company | Data visualization enhancement through removal of dominating structures |
US6173083B1 (en) * | 1998-04-14 | 2001-01-09 | General Electric Company | Method and apparatus for analyzing image structures |
US6208763B1 (en) * | 1998-04-14 | 2001-03-27 | General Electric Company | Method and apparatus for enhancing discrete pixel images |
AU4240500A (en) * | 1999-04-15 | 2000-11-02 | General Electric Company | Optimized ct protocol |
US6556720B1 (en) * | 1999-05-24 | 2003-04-29 | Ge Medical Systems Global Technology Company Llc | Method and apparatus for enhancing and correcting digital images |
US6754376B1 (en) * | 2000-11-22 | 2004-06-22 | General Electric Company | Method for automatic segmentation of medical images |
US6592523B2 (en) * | 2001-11-21 | 2003-07-15 | Ge Medical Systems Global Technology Company, Llc | Computationally efficient noise reduction filter for enhancement of ultrasound images |
US6963670B2 (en) * | 2001-11-21 | 2005-11-08 | Ge Medical Systems Global Technology Company, Llc | CT dose reduction filter with a computationally efficient implementation |
US7599579B2 (en) * | 2002-07-11 | 2009-10-06 | Ge Medical Systems Global Technology Company, Llc | Interpolated image filtering method and apparatus |
US6937776B2 (en) * | 2003-01-31 | 2005-08-30 | University Of Chicago | Method, system, and computer program product for computer-aided detection of nodules with three dimensional shape enhancement filters |
-
2005
- 2005-03-29 US US11/092,487 patent/US7512284B2/en active Active
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2006
- 2006-03-24 JP JP2006082222A patent/JP5038642B2/ja active Active
- 2006-03-29 FR FR0602733A patent/FR2884013A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
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US20060228036A1 (en) | 2006-10-12 |
US7512284B2 (en) | 2009-03-31 |
FR2884013A1 (fr) | 2006-10-06 |
JP2006271971A (ja) | 2006-10-12 |
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