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    SYSTEM AND METHOD FOR DESIGN OF ADDITIVELY MANUFACTURED PRODUCTS
    71.
    发明申请
    SYSTEM AND METHOD FOR DESIGN OF ADDITIVELY MANUFACTURED PRODUCTS 审中-公开

    公开(公告)号：US20180276889A1

    公开(公告)日：2018-09-27

    申请号：US15823021

    申请日：2017-11-27

    Applicant: Tata Consultancy Services Limited

    Inventor： Pramod Ramdas ZAGADE ,  Purushottham Gautham BASAVARSU

    IPC: G06T17/20 ,  G06F17/50 ,  B29C64/386

    CPC classification number: G06T17/205 ,  B29C64/386 ,  G06F17/5018 ,  G06F17/5086 ,  G06F2217/12 ,  Y02P90/265

    Abstract: A system and method for obtaining topologically optimized structure in additive manufacturing. A finite element mesh of a standard shape geometry encompassing desired structure to be optimized with a design objective and orthotropic properties of material arising out of a selected material and selected additive manufacturing process to be used for manufacturing. An iterative topology optimization is carried out wherein the process includes simulation of loading requirements, design constraints and the boundary condition. The performance evaluation process uses a finite element analysis framework to obtain the factor of safety between two consecutive iterations based on the anisotropic properties of the material. The process will achieve a minimal factor of safety and a best suitable build orientation of the design.

    GENERATION OF LIGHTING DATA FOR A THREE-DIMENSIONAL ENTITY
    72.
    发明申请
    GENERATION OF LIGHTING DATA FOR A THREE-DIMENSIONAL ENTITY 审中-公开

    公开(公告)号：US20180240266A1

    公开(公告)日：2018-08-23

    申请号：US15439609

    申请日：2017-02-22

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Daniel James Chalk

    IPC: G06T15/50 ,  G06T17/20 ,  G06T15/60 ,  G06T15/80 ,  G06T15/06 ,  G06T1/20

    CPC classification number: G06T15/50 ,  G06T15/60 ,  G06T15/80 ,  G06T17/205

    Abstract: A method of automatically generating lighting data for a three-dimensional computer generated entity is described. A mesh representation of at least a part of the entity is received and simplified by removing vertices from the mesh. For each vertex in the simplified mesh, a plurality of rays are propagated from the vertex and a cone-shaped region is then defined for the vertex using those of the plurality of rays that do not intersect with the simplified mesh, wherein the cone-shaped region is defined in terms of a vector and an angular parameter. An angular parameter and a vector for each vertex in the received mesh is then calculated by interpolating the angular parameters and vectors for each vertex in the simplified mesh and lighting data is output, the lighting data comprising the angular parameter and vector for each vertex in the received mesh.

    Tessellation Method
    74.
    发明申请
    Tessellation Method 审中-公开

    公开(公告)号：US20180218536A1

    公开(公告)日：2018-08-02

    申请号：US15865959

    申请日：2018-01-09

    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.

    3D model enhancement
    75.
    发明授权
    3D model enhancement 有权

    公开(公告)号：US10019840B2

    公开(公告)日：2018-07-10

    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 ,  G06T5/00

    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.

    Method and systems for generating a three dimensional model of a subject by iteratively generating meshes
    80.
    发明授权
    Method and systems for generating a three dimensional model of a subject by iteratively generating meshes 有权

    公开(公告)号：US09905047B2

    公开(公告)日：2018-02-27

    申请号：US14921908

    申请日：2015-10-23

    Applicant: Kabushiki Kaisha Toshiba

    Inventor： Frank Perbet ,  Bjorn Stenger ,  Minh-Tri Pham

    IPC: G06T17/20

    CPC classification number: G06T17/20 ,  G06T17/205 ,  G06T2210/36

    Abstract: In one embodiment a method of generating a three dimensional model of a subject is disclosed. The method comprises receiving point cloud data for a subject; receiving user inputs indicating a plurality of cubes, and a grouping of the cubes into a plurality of blocks to form a representation of a class of subjects; generating a first mesh comprising a plurality of quadrilaterals by subdividing patches corresponding to faces of blocks of the plurality of blocks; fitting the first mesh to the point cloud data to generate a fitted mesh; iteratively generating further meshes, each comprising a plurality of quadrilaterals by subdividing patches of the fitted mesh from the previous iteration and fitting the further mesh to the point cloud data; and outputting as the three dimensional model of the subject the iteratively generated fitted mesh.

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