公开(公告)号：EP2089855A1

公开(公告)日：2009-08-19

申请号：EP07871784.0

申请日：2007-12-04

申请人： Ecole Nationale Supérieure D'Arts et Métiers ENSAM ,  Centre National de la Recherche Scientifique

发明人： SKALLI, Wafa ,  LAFON, Yoann ,  LAFAGE, Virginie ,  STEIB, Jean-Paul ,  DUBOUSSET, Jean ,  LAVASTE, François

IPC分类号： G06T17/20

CPC分类号： G06T17/20

摘要： The invention relates to a method for simulating the behaviour of an articulated bone part assembly, in particular the spine of a subject, that comprises: the step of building a three-dimensional geometric model of the assembly from specific data on the subject in a reference position; the step of mechanically customising the geometric model by particularising at least some articulated linking areas of the bone parts; wherein the mechanical customisation step comprises: a customisation phase of the critical link areas, or junction areas, of the bone parts; a phase for acquiring data concerning the articulated bone part assembly of the subject during at least one clinical test of the posture in a position different from the reference position or of movement from said position; and a phase for characterising the mechanical parameters of said junction areas in order to obtain the reproduction by the model of the data acquired during the above-mentioned clinical test.

公开(公告)号：EP1922701B1

公开(公告)日：2009-08-12

申请号：EP06795675.5

申请日：2006-08-17

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： KAUS, Michael ,  MEYER, Matthias, W.

IPC分类号： G06T17/20

CPC分类号： G06T17/20 ,  G06T17/205

摘要： An exemplary embodiment of the invention provides a method for producing a triangulation of a surface of a physical object the method comprising the steps of generating an intermediate mesh representation of the surface out of surface voxels (102) and detecting at least one T-junction in the intermediate mesh representation (103). The method further comprising the steps of decomposing of the at least one T-junction into at least one triangle and at least one two-point-polygon (104), and generating the triangulation of the surface out of the modelled intermediate mesh representation (107).

公开(公告)号：EP2071517A1

公开(公告)日：2009-06-17

申请号：EP08170964.4

申请日：2008-12-08

申请人： Esko-Graphics A/S

发明人： Vernaillen, Frank R. M. ,  Van Bael, Kristina K. A.

IPC分类号： G06T17/20

CPC分类号： G06T15/00 ,  G06T17/20

摘要： A method, and apparatus, and a computer-readable medium encoded with instructions to carry out a method. The method is of rendering a model of a surface of wrinkly material such as paper or foil, e.g., a model of packaging on a display device. The method includes accepting a description of the different parts of the surface of the packaging, and how and where any of the parts are connected, discretizing to form a mesh, modelling the physics of the mesh, running a simulation to find a stable end-state for the mesh, modifying the mesh to visually smooth the mesh in a way that is perceived as typical for flexible packaging material; and rendering the model on a display device. The modifying the mesh is to visually smooth the mesh includes modifying during the rendering or modifying prior to the rendering.

公开(公告)号：EP2036042A2

公开(公告)日：2009-03-18

申请号：EP07798744.4

申请日：2007-06-19

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： FISCHER, Alexander

IPC分类号： G06T7/00 ,  A61B5/00

CPC分类号： G06T19/00 ,  G06T7/0012 ,  G06T7/11 ,  G06T17/20 ,  G06T2207/10104 ,  G06T2207/10108 ,  G06T2207/20156 ,  G06T2207/30048

摘要： A method of identifying a myocardial region of interest in cardiac medical image data is disclosed. The method includes identifying myocardial tissue (200) in first (204) and second (206) views of the medical imaging data and constructing a myocardial surface (502). In one embodiment, the myocardial surface is modeled as a plurality of elliptical arc segments (502) and a half ellipsoid.

摘要翻译： 公开了一种识别心脏医学图像数据中的心肌区域的方法。 该方法包括在医学成像数据的第一（204）和第二（206）视图中识别心肌组织（200）并构建心肌表面（502）。 在一个实施例中，心肌表面被建模为多个椭圆弧段（502）和半椭球。

公开(公告)号：EP1994501A1

公开(公告)日：2008-11-26

申请号：EP07723228.8

申请日：2007-03-13

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

发明人： DAUM, Volker ,  SPINNLER, Klaus ,  COURONNÉ, Robert ,  ELTER, Matthias ,  RUPP, Stephan ,  WINTER, Christian

IPC分类号： G06T5/00 ,  G06T5/50

CPC分类号： G06T3/4053 ,  G02B6/06 ,  G02B6/4298 ,  G02B23/26 ,  G06T17/20

摘要： The aim of the invention is to create an image that is devoid of interference structures, using a fibre bundle (102) consisting of several optical fibres (106) and a sensor (102). To achieve this, imaging parameters, which describe the geometric characteristics of the intensity profile produced by each individual optical fibre (106) on the sensor (104) are made available for the system consisting of the fibre bundle (102) and sensor (104). During the reconstruction of the image, an amplitude value and/or luminosity information is/are produced for each individual optical fibre (106) by adapting a function of the amplitude value and the imaging parameter of the relevant optical fibre (106) to an intensity recording (300) of the sensor (104), to produce an optimal amplitude or luminosity value, taking into consideration the geometric imaging characteristics for each optical fibre (106).

公开(公告)号：EP1933279A2

公开(公告)日：2008-06-18

申请号：EP03013861.4

申请日：1998-07-29

申请人： Pixar Animation Studios

发明人： DeRose, Anthony David, c/o Pixar Anim.Studios ,  Kass, Michael ,  Truong, Tien Gia, c/o Pixar Animation Studios

IPC分类号： G06T17/20

CPC分类号： G06T17/20 ,  G06T13/20 ,  G06T17/205

摘要： Three related methods are disclosed for defining smooth scalar fields on arbitrary polygonal meshes which can be consistently carried through the subdivision process allowing one to define and compute the value of scalar fields over an arbitrarily dense set of points on the limit surface. Applications of these techniques in computer graphics and computer animation include: (1) the definition of pseudo-coordinates for use in parametric shading including texture mapping; (2) the assignment of smoothly varying articulation weights over the control points of a model to more efficiently define the transformation of a highly detailed object or character under specific animation controls; and (3) the assignment of smoothly varying local parameters for specifying the local behavior of dynamic or quasi-static objects or surfaces.

摘要翻译： 三个相关的方法是游离缺失光盘为平滑限定在其上可以通过细分过程允许一个超过定义和计算标量场的值一致地携带任意多边形网格标量场的极限表面上任意稠密的点集。 在计算机图形和计算机动画合成技术的应用包括：（1）伪坐标的用于参数阴影包括纹理贴图使用的定义; （2）的在模型的控制点平滑变化的关节运动的权重以更有效地限定在特定的动画控制非常详细的对象或人物的改造的分配; 和（3）平滑变化局部参数用于指定动态或准静态物体或表面的局部行为的分配。

公开(公告)号：EP1927954A1

公开(公告)日：2008-06-04

申请号：EP06024937.2

申请日：2006-12-01

申请人： Harman Becker Automotive Systems GmbH

发明人： Strassenburg-Kleciak, Marek ,  Meyer, Hendrik

IPC分类号： G06T17/20 ,  G06T17/50

CPC分类号： G06T17/05 ,  G06T17/20

摘要： The present invention relates to a method for generating a digital representation of a physical terrain, comprising the steps of reading data of a digital terrain model including raster points having coordinates including a height coordinate that indicates height values of the raster points, determining differences between the height values of adjacent raster points of the digital terrain model, storing only those raster points with height values that differ from the height value of at least one adjacent raster point by at least a predetermined threshold and calculating three-dimensional B-spline surfaces interpolating the stored raster points.

摘要翻译： 本发明涉及一种用于生成物理地形的数字表示的方法，包括以下步骤：读取数字地形模型的数据，该数据地形模型包括具有坐标的光栅点，所述坐标包括指示光栅点的高度值的高度坐标， 数字地形模型的相邻光栅点的高度值，仅存储具有不同于至少一个相邻光栅点的高度值的高度值至少预定阈值的那些光栅点，并且计算内插所述三维B-样条曲面 存储光栅点。

公开(公告)号：EP1922701A2

公开(公告)日：2008-05-21

申请号：EP06795675.5

申请日：2006-08-17

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： KAUS, Michael ,  MEYER, Matthias, W.

IPC分类号： G06T17/20

CPC分类号： G06T17/20 ,  G06T17/205

摘要： An exemplary embodiment of the invention provides a method for producing a triangulation of a surface of a physical object the method comprising the steps of generating an intermediate mesh representation of the surface out of surface voxels (102) and detecting at least one T-junction in the intermediate mesh representation (103). The method further comprising the steps of decomposing of the at least one T-junction into at least one triangle and at least one two-point-polygon (104), and generating the triangulation of the surface out of the modelled intermediate mesh representation (107).

公开(公告)号：EP1086412A4

公开(公告)日：2008-05-07

申请号：EP99927310

申请日：1999-06-07

申请人： MICROSOFT CORP

发明人： LENGYEL JEROME E ,  GUENTER BRIAN ,  MALVAR HENRIQUE SARMENTO

IPC分类号： H04N7/30 ,  G06T9/00 ,  G06T13/00 ,  G06T13/20 ,  G06T17/00 ,  G06T17/20 ,  H04N7/26 ,  H04N7/36

CPC分类号： G06T17/20 ,  G06T9/001 ,  G06T13/00 ,  G06T13/20 ,  H04N19/20 ,  H04N19/503

摘要： Methods for coding a time-dependent geometry stream (164, 165) include geometric transform coder, a basis decomposition coder, a column/row prediction coder, and space-time level of detail coder. The basis decomposition coder uses principal component analysis to decompose a time dependent geometry matrix into basis vectors and weights. The weights and basis vectors are coded separately. Optionally, the residual between a mesh constructed from the weight and basis vectors and the original mesh can be encoded as well. The column/row predictor exploits coherence in a matrix of time dependent geometry by encoding differences among neighboring rows and columns (166). Row and column sorting (163) optimizes this form of coding by re-arranging rows and columns to improve similarity among neighboring rows/columns. The space-time level of detail coder converts a time-dependent geometry stream into a hierarchical structure, including levels of detail in the space and time dimensions, and expansion records. The expansion records specify how to reconstruct (172) a mesh from deltas representing differences between levels of detail.

公开(公告)号：EP1818872A3

公开(公告)日：2008-04-23

申请号：EP06114686.6

申请日：2006-05-30

申请人： FUJITSU LIMITED

发明人： Imai, Kanako c/o Fujitsu Limited

IPC分类号： G06T17/20

CPC分类号： G06T17/20

摘要： The present invention has been made to provide a technique capable of contributing to a reduction in operational burden on workers and an increase in operating accuracy in a generation process of a mesh for numerical analysis for a geometric model.
A numerical analysis mesh generation apparatus (1) generates a mesh for use in performing numerical analysis for a geometric model to be analyzed. The apparatus comprises: a reference surface selection section (101) that selects one surface from a plurality of surfaces constituting the geometric model as a reference surface; an edge projection section (102) that projects, in a predetermined direction, edges of the geometric model located in a predetermined direction away from the reference surface selected by the reference surface selection section on the reference surface; an interval determination section (103) that determines an interval between edges projected on the reference surface by the edge projection section; a grouping section (104) that groups two or more edges with one of the two or more edges set as a representative edge when the interval determination section determines that the interval between them is smaller than a predetermined interval; and a mesh generation section (105) that generates a mesh for the reference surface based on a surface divided using the edges grouped by the grouping section.