WO1999030281A1 - Procede de segmentation semi-automatique pour l'estimation de volumes tridimensionnels - Google Patents
Procede de segmentation semi-automatique pour l'estimation de volumes tridimensionnels Download PDFInfo
- Publication number
- WO1999030281A1 WO1999030281A1 PCT/FR1998/002599 FR9802599W WO9930281A1 WO 1999030281 A1 WO1999030281 A1 WO 1999030281A1 FR 9802599 W FR9802599 W FR 9802599W WO 9930281 A1 WO9930281 A1 WO 9930281A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- points
- segments
- dimensional
- volume
- outline
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
- G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
Definitions
- the present invention seeks to solve the problems of the above method, by proposing a simple method, easy to use and making it possible to obtain the desired precision in a short time.
- the method according to the invention is intended for estimating the volume of a three-dimensional object in medical imaging, an outline of the object being known by means of a plurality of photographs taken in section.
- the method comprises the following steps: a given number of base points is defined constituting a first three-dimensional shape defined by facets whose vertices are the base points, each facet of the first shape being defined by three segments and each segment being common with two adjacent facets, the segments are divided by creating second row points adapted to the contour of the object so as to constitute a second three-dimensional shape closer to the contour of the object than the first shape, the creation of a point of second rank entailing the creation of two new facets and three new segments, - each segment is iteratively divided into adjusted sub-segments by defining third row points adapted to the outline of the object so as to constitute a third three-dimensional shape closer to the outline of the object than the second shape, the creation of a point of third rank leading to the creation of two new facets and three new segments,
- the photographs are taken in parallel sections.
- a plurality of shots are processed to provide a description of the three-dimensional volume.
- each segment is divided into two.
- the position of each second point is proposed as a function of the position of the first two adjacent points.
- Each second point can thus be proposed according to the orientation of the normals at the first two adjacent points.
- the segments are divided into sub-segments until the change in volume resulting from a given division is negligible. It is thus possible to choose a change in threshold volume below which the iterative division into sub-segments is stopped.
- This volume change threshold corresponds to the desired precision of the process.
- six first basic points are defined which are placed on the top and on the bottom, on the front and on the back, and on each lateral edge of the object.
- a calculation of the density distribution of the object in space can be performed after the calculation of the estimated volume of the object.
- a different weighting is given to the points in order to get as close as possible to the real contour of the object.
- a modification of a first base point will cause a corresponding modification of all the neighboring points.
- ALI on the contrary, a modification of a third point of the third form will not entail modification of the first and second adjacent points and may slightly modify the position of the third adjacent points. In a very flexible manner, it is thus possible to make improvements to the different shapes, leading to making them closer to the real contour of the three-dimensional object.
- any point, including the third row, can be defined manually.
- FIG. 1 is a perspective view of a final form according to the invention
- Figures 2 and 3 are schematic two-dimensional views of the method according to the invention
- Figures 4 and 5 are schematic three-dimensional views of the method according to the invention.
- a final shape approaching a three-dimensional object consists of a plurality of facets defined by three segments, for example segments 1 to 3 defining a planar triangular surface 4.
- the volume of the three-dimensional object is thus approached by means of triangular surfaces whose coordinates of the vertex points are known.
- the calculation of the volume of the form can thus be carried out.
- An operator begins by defining six points of the object, an upper point 11, a lower point 12, a left lateral point 13, a right lateral point 14, a front point 15 and a rear point not visible in FIG. 1.
- This first form thus roughly defines the three-dimensional object, the positioning of these six basic points must be carried out precisely because on their definition depends that of the future adjacent points. To obtain a satisfactory definition, it may be necessary to check their positioning on different sections of the object.
- an oblique view is added to the existing views, allowing orientation and centering to define additional points.
- points whose definition does not correspond satisfactorily to an irregularity of the three-dimensional object studied, in particular a hollow or a protuberance can be modified.
- the points adjacent to the modified points will also be modified to maintain the regularity of the defined volume, taking into account the fact that the said point belongs to the first, second or third form.
- the displacement of a point of the first shape involves a corresponding displacement of all the adjacent points.
- the displacement of a point of the third form does not involve the displacement of the adjacent points of the first and second forms.
- Figures 2 and 3 show schematically, in two dimensions, the process of defining points. From a contour 20, first base points 21 to 23 are defined and make it possible to roughly define said contour 20. The line segments 24 to 26 connecting the first base points 21 to 23 are then defined. Normal 27 to 29 to these segments 24 to 26 are then calculated. Then we can define second points 30 to 32 approaching more precisely the contour 20 by moving along the normals 27 to 29. Then we define the segments 33 to 38 connecting points 21 to 23 and 30 to 32, which allows you to reproduce the previous steps, manually, semi-automatically or automatically until the desired precision is obtained.
- Figures 4 and 5 show schematically, in three dimensions, the process of defining points.
- Two facets 40 and 41 belonging to a contour are shown.
- the facet 40 is limited by the base points 42, 43 and 44.
- the facet 41 is limited by the base points 43, 44 and 45.
- the base points 43 and 44 are therefore common to the facets 40 and 41 and define a segment 46.
- a second order point 47 is defined below, which leads to the creation of additional facets 48 and 49 and additional segments 50 to 52.
- the invention there is a method for estimating the volume d '' a three-dimensional object suitable for radiological imaging, easy to use because there are only a small number of points to define on the edge of the three-dimensional object, easy to control, which guarantees a good approximation of the contour, fast, because the automatic definition phase can be carried out in a few seconds and easily reproducible since it is based on the definition of a small number of points on the outline of the object.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98958308A EP0958548B1 (fr) | 1997-12-10 | 1998-12-02 | Procede de segmentation semi-automatique pour l'estimation de volumes tridimensionnels |
JP53021499A JP2001512608A (ja) | 1997-12-10 | 1998-12-02 | 三次元のボリュームを推定するための半自動的分割の方法 |
DE69817768T DE69817768T2 (de) | 1997-12-10 | 1998-12-02 | Semiautomatisches segmentationsverfahren zum schätzen von dreidimensionalem volumen |
KR10-1999-7007104A KR100523887B1 (ko) | 1997-12-10 | 1998-12-02 | 삼차원 대상물의 부피 측정 및 분할 방법 |
US09/368,201 US7191101B2 (en) | 1997-12-10 | 1999-08-04 | Method of semiautomatic segmentation for the estimation of three-dimensional volumes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR97/15639 | 1997-12-10 | ||
FR9715639A FR2772162B1 (fr) | 1997-12-10 | 1997-12-10 | Procede de segmentation semi-automatique pour l'estimation de volumes tridimensionnels |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/368,201 Continuation US7191101B2 (en) | 1997-12-10 | 1999-08-04 | Method of semiautomatic segmentation for the estimation of three-dimensional volumes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999030281A1 true WO1999030281A1 (fr) | 1999-06-17 |
Family
ID=9514424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/002599 WO1999030281A1 (fr) | 1997-12-10 | 1998-12-02 | Procede de segmentation semi-automatique pour l'estimation de volumes tridimensionnels |
Country Status (8)
Country | Link |
---|---|
US (1) | US7191101B2 (fr) |
EP (1) | EP0958548B1 (fr) |
JP (1) | JP2001512608A (fr) |
KR (1) | KR100523887B1 (fr) |
CN (1) | CN1251150C (fr) |
DE (1) | DE69817768T2 (fr) |
FR (1) | FR2772162B1 (fr) |
WO (1) | WO1999030281A1 (fr) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110306997A9 (en) * | 2002-02-21 | 2011-12-15 | Roschak Edmund J | Devices for creating passages and sensing for blood vessels |
DE60320453T2 (de) * | 2002-12-12 | 2009-05-07 | Philips Intellectual Property & Standards Gmbh | Verfahren zur segmentierung eines dreidimensionalen datensatzes mit ermöglichung von benutzerkorrekturen |
CN100339872C (zh) * | 2003-03-11 | 2007-09-26 | 美国西门子医疗解决公司 | 提供自动三维损害分割和测量的系统及方法 |
US8308682B2 (en) | 2003-07-18 | 2012-11-13 | Broncus Medical Inc. | Devices for maintaining patency of surgically created channels in tissue |
US8409167B2 (en) | 2004-07-19 | 2013-04-02 | Broncus Medical Inc | Devices for delivering substances through an extra-anatomic opening created in an airway |
US7522163B2 (en) * | 2004-08-28 | 2009-04-21 | David Holmes | Method and apparatus for determining offsets of a part from a digital image |
WO2008005953A2 (fr) * | 2006-06-30 | 2008-01-10 | Broncus Technologies, Inc. | Sélection de site de dérivation des voies aériennes et planification d'un traitement |
WO2011057318A1 (fr) * | 2008-10-17 | 2011-05-19 | National Ict Australia Limited | Representation d'une surface d'un objet apparaissant dans une image electronique |
US8709034B2 (en) | 2011-05-13 | 2014-04-29 | Broncus Medical Inc. | Methods and devices for diagnosing, monitoring, or treating medical conditions through an opening through an airway wall |
EP2706940B1 (fr) | 2011-05-13 | 2016-12-14 | Broncus Medical, Inc. | Procédés et dispositifs d'ablation de tissu |
WO2013078235A1 (fr) | 2011-11-23 | 2013-05-30 | Broncus Medical Inc | Procédés et dispositifs pour le diagnostic, la surveillance ou le traitement d'affections médicales par une ouverture à travers une paroi des voies aériennes |
US9189860B2 (en) | 2013-04-22 | 2015-11-17 | General Electric Company | Real-time, interactive image analysis |
US10130325B2 (en) | 2013-06-10 | 2018-11-20 | General Electric Company | System and method of correcting banding artifacts in cardiac CT |
CN107307884B (zh) * | 2017-07-03 | 2019-11-26 | 三峡大学 | 一种经腹二维超声下膀胱容积测量、计算方法 |
KR102321127B1 (ko) | 2019-08-22 | 2021-11-03 | 재단법인 대구경북첨단의료산업진흥재단 | 포인트 클라우드의 부피 측정 시스템 및 방법 |
Citations (2)
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US5307292A (en) * | 1992-06-24 | 1994-04-26 | Christopher A. Brown | Method of quantifying the topographic structure of a surface |
US5435310A (en) * | 1993-06-23 | 1995-07-25 | University Of Washington | Determining cardiac wall thickness and motion by imaging and three-dimensional modeling |
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US5367615A (en) * | 1989-07-10 | 1994-11-22 | General Electric Company | Spatial augmentation of vertices and continuous level of detail transition for smoothly varying terrain polygon density |
US5214752A (en) * | 1991-01-22 | 1993-05-25 | International Business Machines Corporation | Point placement method for use in a three-dimensional automatic mesh generation system |
US5345490A (en) * | 1991-06-28 | 1994-09-06 | General Electric Company | Method and apparatus for converting computed tomography (CT) data into finite element models |
US5440674A (en) * | 1991-07-31 | 1995-08-08 | Park; Joon Y. | Mesh generation with quasi-equilateral triangulation for finite element analyses |
JP2713323B2 (ja) * | 1992-03-02 | 1998-02-16 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 等値サーフェイスを効率的に生成し等値サーフェイス画像データ及び表面等値線画像データをディスプレイするための方法及び装置 |
US5390035A (en) * | 1992-12-23 | 1995-02-14 | International Business Machines Corporation | Method and means for tetrahedron/octahedron packing and tetrahedron extraction for function approximation |
US5649079A (en) * | 1994-02-28 | 1997-07-15 | Holmes; David I. | Computerized method using isosceles triangles for generating surface points |
US5798764A (en) * | 1994-05-27 | 1998-08-25 | Nec Corporation | Method for determining the intersections of Delaunay partitioned tetrahedra with the boundary of a body to be analyzed |
US5689577A (en) * | 1994-10-14 | 1997-11-18 | Picker International, Inc. | Procedure for the simplification of triangular surface meshes for more efficient processing |
US5782762A (en) * | 1994-10-27 | 1998-07-21 | Wake Forest University | Method and system for producing interactive, three-dimensional renderings of selected body organs having hollow lumens to enable simulated movement through the lumen |
US5596504A (en) * | 1995-04-10 | 1997-01-21 | Clemson University | Apparatus and method for layered modeling of intended objects represented in STL format and adaptive slicing thereof |
JPH08320947A (ja) * | 1995-05-25 | 1996-12-03 | Matsushita Electric Ind Co Ltd | 数値解析用メッシュ作成方法及び装置 |
JP2746204B2 (ja) * | 1995-05-29 | 1998-05-06 | 日本電気株式会社 | 有限差分法における三角形および四面体メッシュ発生方法 |
US5963209A (en) * | 1996-01-11 | 1999-10-05 | Microsoft Corporation | Encoding and progressive transmission of progressive meshes |
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-
1997
- 1997-12-10 FR FR9715639A patent/FR2772162B1/fr not_active Expired - Fee Related
-
1998
- 1998-12-02 DE DE69817768T patent/DE69817768T2/de not_active Expired - Lifetime
- 1998-12-02 EP EP98958308A patent/EP0958548B1/fr not_active Expired - Lifetime
- 1998-12-02 JP JP53021499A patent/JP2001512608A/ja active Pending
- 1998-12-02 CN CNB988024152A patent/CN1251150C/zh not_active Expired - Fee Related
- 1998-12-02 KR KR10-1999-7007104A patent/KR100523887B1/ko not_active IP Right Cessation
- 1998-12-02 WO PCT/FR1998/002599 patent/WO1999030281A1/fr active IP Right Grant
-
1999
- 1999-08-04 US US09/368,201 patent/US7191101B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5307292A (en) * | 1992-06-24 | 1994-04-26 | Christopher A. Brown | Method of quantifying the topographic structure of a surface |
US5435310A (en) * | 1993-06-23 | 1995-07-25 | University Of Washington | Determining cardiac wall thickness and motion by imaging and three-dimensional modeling |
Also Published As
Publication number | Publication date |
---|---|
KR100523887B1 (ko) | 2005-10-26 |
FR2772162A1 (fr) | 1999-06-11 |
DE69817768D1 (de) | 2003-10-09 |
EP0958548B1 (fr) | 2003-09-03 |
US7191101B2 (en) | 2007-03-13 |
US20020026299A1 (en) | 2002-02-28 |
KR20000070839A (ko) | 2000-11-25 |
EP0958548A1 (fr) | 1999-11-24 |
DE69817768T2 (de) | 2004-07-15 |
FR2772162B1 (fr) | 2000-02-25 |
CN1251150C (zh) | 2006-04-12 |
CN1246944A (zh) | 2000-03-08 |
JP2001512608A (ja) | 2001-08-21 |
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