公开(公告)号：US20170091997A1

公开(公告)日：2017-03-30

申请号：US15374259

申请日：2016-12-09

Applicant: Dassault Systemes

Inventor： Jean Julien Tuffreau

IPC: G06T17/20 ,  G06T1/60 ,  G06F17/50 ,  G06T7/60

CPC classification number: G06T17/205 ,  G06F17/50 ,  G06T1/60 ,  G06T7/60 ,  G06T17/20 ,  G06T2200/04 ,  H04N19/20

Abstract: It is proposed a computer-implemented method for compressing a three-dimensional modeled object. The method comprises: providing a mesh of the three-dimensional modeled object; parameterizing (u,v) the mesh in a two-dimensional plane, the parameterization of the mesh resulting in a set of vertices having two-dimensional coordinates; providing a grid on the two-dimensional plane; and modifying the two-dimensional coordinates of each vertex by assigning one vertex to one intersection of the grid. Such compression method is lossless, completely reversible, suitable to efficiently reduce the storage size of a CAD file.

公开(公告)号：US20170083115A1

公开(公告)日：2017-03-23

申请号：US15311525

申请日：2015-05-12

Applicant: FAINDU GMBH

Inventor： Marc SPECK

IPC: G06F3/0346 ,  G06K9/00 ,  G06F3/0481 ,  G06F3/01 ,  G06F3/038

CPC classification number: G06F3/0346 ,  G02B27/017 ,  G06F3/011 ,  G06F3/014 ,  G06F3/017 ,  G06F3/0383 ,  G06F3/04815 ,  G06F2203/0331 ,  G06F2203/04801 ,  G06F2203/04808 ,  G06K9/00355 ,  G06T17/205 ,  G06T19/20

Abstract: The invention relates to a method of representing a virtual interaction on at least one screen by means of a computer unit, comprising at least the following steps:representation of a virtual surface on at least one screen;representation of a position of a pointer by means of a defined deformation of the virtual surface (3) if the pointer is located on the virtual surface (3);displacement of the defined deformation upon a corresponding displacement of the pointer while the previously defined deformation is cancelled.Furthermore, the invention relates to an input device for a virtual application, wherein the input device is designed as a ring and comprises at least the following components:a fastening device for fastening to a finger;a recording device for creating recording data of the relative position of at least one finger of a hand with respect to the input device and/or with respect to at least one further component of the hand and/or with respect to a real surface, if the activated input device is fastened to the hand by means of the fastening device;an internal computer unit for processing the recording data; a transmitter unit for sending the processed recording data of the computer unit, wherein by means of said recording data at least one corresponding virtual interaction can be generated by means of the internal and/or an external computer unit. With the invention presented here, an autarkic and intuitive operation, in particular for applications in the field of augmented reality, can be implemented without the user being hindered in his other activities.

公开(公告)号：US20170032568A1

公开(公告)日：2017-02-02

申请号：US15290046

申请日：2016-10-11

Applicant: Google Inc.

Inventor： Chaitanya Gharpure ,  Thor Lewis

IPC: G06T17/20 ,  G06T15/04 ,  G06T15/60 ,  G06T13/20 ,  G06T15/80

CPC classification number: G06T17/20 ,  G06T7/00 ,  G06T13/20 ,  G06T15/04 ,  G06T15/60 ,  G06T15/80 ,  G06T17/00 ,  G06T17/205 ,  G06T2210/08 ,  G06T2210/16

Abstract: Methods and systems for providing a preloader animation for image viewers is provided. An example method includes receiving an image of an object, determining an edge gradient value for pixels of the image, and selecting pixels representative of the object that have a respective edge gradient value above a threshold. The example method also includes determining a model of the object including an approximate outline of the object and structures internal to the outline that are oriented based on the selected pixels being coupling points between the structures, and providing instructions to display the model in an incremental manner so as to render given structures of the model over time.

Abstract translation: 提供了用于为图像查看器提供预加载器动画的方法和系统。 示例性方法包括：接收对象的图像，确定图像的像素的边缘梯度值，以及选择表示具有高于阈值的相应边缘梯度值的对象的像素。 示例性方法还包括确定对象的模型，其包括基于所选择的像素为对象的轮廓内部的对象的概要以及结构之间的耦合点定向的结构，并提供以增量方式显示模型的指令 以便随着时间的推移给出模型的给定结构。

公开(公告)号：US20170024931A1

公开(公告)日：2017-01-26

申请号：US15217956

申请日：2016-07-22

Applicant: The University of British Columbia

Inventor： Alla SHEFFER ,  Nicholas VINING ,  Marco LIVESU

IPC: G06T17/20 ,  G06F17/11 ,  G06F17/16

CPC classification number: G06T17/205 ,  G06F17/11 ,  G06F17/16 ,  G06F17/50

Abstract: Methods and systems improve quality of a hex-mesh by: performing a first iterative procedure which starts with the input hex-mesh and which outputs an output hex-mesh having improved quality. Performing the first iterative procedure comprises: initializing a current hex-mesh to be equal to the input hex mesh; for each iteration of the first iterative procedure: performing an optimization of an energy function over a plurality of directed-edges in the current hex-mesh to determine updated vertex positions for vertices in the current hex-mesh, wherein for each directed edge, the energy function comprises a term that expresses a preference for the directed edge to be aligned with normal vectors of base triangles of an edge-cone corresponding to the directed edge; and updating the current hex-mesh with the updated vertex positions; and after one or more iterations, setting the output hex-mesh to be equal to the current hex-mesh.

Abstract translation: 方法和系统通过以下方式提高六边形网格的质量：执行从输入六边形网格开始的第一个迭代过程，并输出具有改进质量的输出六边形网格。 执行第一迭代过程包括：将当前六进制网格初始化为等于输入的六边形网格; 对于第一迭代过程的每个迭代：对当前六进制网格中的多个有向边进行能量函数的优化，以确定当前六进制网格中顶点的更新顶点位置，其中对于每个有向边， 能量函数包括表示将有向边缘偏好与对应于有向边缘的边缘锥体的基本三角形的法线向量对准的项; 并用更新的顶点位置更新当前的六边形网格; 并且在一次或多次迭代之后，将输出hex-mesh设置为等于当前的hex-mesh。

公开(公告)号：US20170018117A1

公开(公告)日：2017-01-19

申请号：US15062926

申请日：2016-03-07

Applicant: BEIHANG UNIVERSITY

Inventor： XIAOWU CHEN ,  BIN ZHOU ,  QINPING ZHAO ,  FEIXIANG LU ,  LIN WANG ,  LANG BI

IPC: G06T17/20 ,  G06K9/00 ,  G06T19/20 ,  G06K9/62

CPC classification number: G06T17/205 ,  G06K9/00362 ,  G06K9/00369 ,  G06K9/4652 ,  G06K9/6256 ,  G06K9/6278 ,  G06K9/6296 ,  G06T19/20 ,  G06T2210/16 ,  G06T2219/2008

Abstract: The present invention provides a method and a system for generating a three-dimensional garment model, where garment component composition information and attribute information corresponding to each garment component are acquired by acquiring and processing RGBD data of a dressed human body, and then a three-dimensional garment component model corresponding to the attribute information of each garment component is selected in a three-dimensional garment component model library, that is, a three-dimensional garment model can be constructed rapidly and automatically only with RGBD data of a dressed human body, and human interactions are not necessary during the process of construction, thus the efficiency of a three-dimensional garment modeling is improved, and it has significant meaning for the development of computer-aided design, three-dimensional garment modeling and virtual garment fitting technology.

Abstract translation: 本发明提供了一种用于生成三维服装模型的方法和系统，其中通过获取和处理穿着人体的RGBD数据来获取与每个衣服部件相对应的服装构成信息和属性信息， 在三维衣服组件模型库中选择与每个服装组件的属性信息相对应的三维服装组件模型，即，可以仅使用穿着人体的RGBD数据快速且自动地构建三维服装模型， 人际交往在施工过程中不是必需的，从而提高了立体服装造型的效率，对计算机辅助设计，三维服装建模和虚拟服装配套技术的发展具有重要的意义。

公开(公告)号：US20170011552A1

公开(公告)日：2017-01-12

申请号：US15270138

申请日：2016-09-20

Applicant: Adobe Systems Incorporated

Inventor： Daniel Robert Goldman ,  Jan Jachnik ,  Linjie Luo

IPC: G06T17/20 ,  G06T19/20

CPC classification number: G06T17/205 ,  G06T5/002 ,  G06T5/003 ,  G06T17/20 ,  G06T19/20 ,  G06T2219/2016 ,  G06T2219/2021

Abstract: One embodiment involves receiving a fine mesh as input, the fine mesh representing a 3-Dimensional (3D) model and comprising fine mesh polygons. The embodiment further involves identifying, based on the fine mesh, near-planar regions represented by a coarse mesh of coarse mesh polygons, at least one of the near-planar regions corresponding to a plurality of the coarse mesh polygons. The embodiment further involves determining a deformation to deform the coarse mesh based on comparing normals between adjacent coarse mesh polygons. The deformation may involve reducing a first angle between coarse mesh polygons adjacent to one another in a same near-planar region. The deformation may additionally or alternatively involve increasing an angle between coarse mesh polygons adjacent to one another in different near-planar regions. The fine mesh can be deformed using the determined deformation.

Abstract translation: 一个实施例涉及接收细网格作为输入，细网格表示三维（3D）模型并且包括细网格多边形。 该实施例还包括基于细网格识别由粗网格多边形的粗网格表示的近平面区域，对应于多个粗网格多边形的至少一个近平面区域。 该实施例还涉及基于相邻粗网格多边形之间的比较法确定变形以使粗网格变形。 变形可以涉及在相同的近平面区域中减小彼此相邻的粗网格多边形之间的第一角度。 变形可以额外地或替代地涉及在不同的近平面区域中增加彼此相邻的粗网格多边形之间的角度。 细网可以使用确定的变形来变形。

公开(公告)号：US20160364908A1

公开(公告)日：2016-12-15

申请号：US15179344

申请日：2016-06-10

Applicant: Hitachi, Ltd.

Inventor： Makoto ONODERA ,  Masayuki HARIYA ,  Yoshimitsu HIRO ,  Chikara KONGO ,  Masaki SHINTANI ,  Tomoaki UTSUNOMIYA ,  Hisayuki EGUCHI ,  Mamoru TSUKAMOTO

IPC: G06T17/20 ,  G06T11/20 ,  G06F17/50 ,  G06T7/00

CPC classification number: G06T17/205 ,  G06F17/5009 ,  G06T7/13 ,  G06T11/206 ,  G06T17/20 ,  G06T19/20 ,  G06T2219/2021

Abstract: An analysis model creation assistance device comprises a mesh data registration unit for registering a mesh data which has been already divided into meshes for a simulation in a mesh database, a CAD data registration unit for registering a CAD data corresponding to the mesh data in a CAD database, and a usable mode extractor for registering a mesh data corresponding to a data on mesh members excluding a mesh member of a largest size in a usable model database as a usable mesh.

Abstract translation: 分析模型创建辅助装置包括：网格数据登记单元，用于登记网格数据库中已经被分割成网格的网格数据; CAD数据登记单元，用于将对应于网格数据的CAD数据登记在CAD 数据库和可用模式提取器，用于将可能模型数据库中除了最大尺寸的网格成员的网格成员上的数据对应的网格数据注册为可用网格。

公开(公告)号：US20160358377A1

公开(公告)日：2016-12-08

申请号：US15175549

申请日：2016-06-07

Applicant: Hitachi, Ltd.

Inventor： Masayuki HARIYA ,  Makoto ONODERA ,  Yoshimitsu HIRO ,  Chikara KONGOU ,  Masaki SHINTANI ,  Tomoaki UTSUNOMIYA ,  Mamoru TSUKAMOTO ,  Hisayuki EGUCHI

IPC: G06T17/20 ,  G06F17/50

CPC classification number: G06T17/205 ,  G06F17/50 ,  G06F17/5009 ,  G06F17/5018 ,  G06F17/5095

Abstract: An analytical mesh generation device includes a shape model input unit for inputting a shape model of an analytical subject, a mesh size input unit for inputting a size of a hexahedral mesh to be generated, a mesh generation region. extraction unit for extracting a mesh. generation region for generating the hexahedral mesh. from the shape model using the mesh size, and a hexahedral mesh generation unit for generating the hexahedral mesh for the extracted mesh generation region.

Abstract translation: 一种分析网格产生装置，包括用于输入分析对象的形状模型的形状模型输入单元，用于输入要生成的六面体网格的尺寸的网格尺寸输入单元，网格生成区域。 提取单元，用于提取网格。 用于生成六面体网格的生成区域。 来自使用网格尺寸的形状模型，以及用于为所提取的网格生成区域生成六面体网格的六面体网格生成单元。

公开(公告)号：US20160358373A1

公开(公告)日：2016-12-08

申请号：US14997718

申请日：2016-01-18

Applicant: Imagination Technologies Limited

Inventor： Simon Fenney ,  Vasiliki Simaiaki

IPC: G06T17/20 ,  G06T15/00

CPC classification number: G06T17/20 ,  G06T15/005 ,  G06T17/205

Abstract: A tessellation method is described which uses vertex tessellation factors. For a quad patch, the method involves comparing the vertex tessellation factors for each vertex of the quad patch to a threshold value and if none exceed the threshold, the quad is sub-divided into two or four triangles. If at least one of the four vertex tessellation factors exceeds the threshold, a recursive or iterative method is used which considers each vertex of the quad patch and determines how to further tessellate the patch dependent upon the value of the vertex tessellation factor of the selected vertex or dependent upon values of the vertex tessellation factors of the selected vertex and a neighbor vertex. A similar method is described for a triangle patch.

Abstract translation: 描述了使用顶点镶嵌因子的细分方法。 对于四分片，该方法包括将四分片的每个顶点的顶点镶嵌因子与阈值进行比较，并且如果没有超过阈值，则将四边形细分为两个或四个三角形。 如果四个顶点镶嵌因子中的至少一个超过阈值，则使用递归或迭代方法，该递归或迭代方法考虑四维贴片的每个顶点，并确定如何根据所选顶点的顶点镶嵌因子的值进一步细分贴片 或者依赖于所选择的顶点和相邻顶点的顶点镶嵌因子的值。 对于三角形补丁描述了类似的方法。

公开(公告)号：US20160335799A1

公开(公告)日：2016-11-17

申请号：US15110068

申请日：2015-01-26

Applicant: UNIVERSITE DE NICE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Marc ANTONINI ,  Anis MEFTAH ,  Leonardo HIDD FONTELES ,  Frédéric PAYAN

IPC: G06T17/20 ,  G06T15/00

CPC classification number: G06T17/205 ,  G06T15/005 ,  G06T2210/36

Abstract: A method and system for generating a three-dimensional (3D) multi-resolution meshing structure is provided. The 3D multi-resolution meshing structure is obtained in a two-steps simplification and refinement process that does not require a 3D-to-2D parameterization phase and wherein the geometry of the surface of the 3D object is used during the refinement step.

Abstract translation: 提供了一种用于生成三维（3D）多分辨率网格划分结构的方法和系统。 3D多分辨率网格划分结构在两步简化和细化过程中获得，其不需要3D到2D参数化阶段，并且其中在精制步骤期间使用3D对象的表面的几何形状。