公开(公告)号：US20230085000A1

公开(公告)日：2023-03-16

申请号：US17900638

申请日：2022-08-31

Applicant: DASSAULT SYSTEMES

Inventor： Lucas BRIFAULT ,  Serban Alexandru STATE

IPC: G06F30/10

Abstract: A computer-implemented method for CAD volume extrusion operator detection in a CAD 3D model representing a mechanical part. The method includes obtaining a segmentation of the CAD 3D model. The CAD 3D model includes a skin representing an outer surface of the mechanical part. The segmentation comprises segments each representing a skin portion. The method further includes iteratively grouping segments. Segments of a pair are grouped when: each segment of the pair is an extrusion surface and a union of the segments is an extrusion surface having a same extrusion axis as the segments, or each segment of the pair is an extrusion surface and one of the two segments is a closing plane for the other segment. The method further includes determining one or more CAD volume extrusion operators, each corresponding to a respective group.

公开(公告)号：US11604906B2

公开(公告)日：2023-03-14

申请号：US16573729

申请日：2019-09-17

Applicant: Dassault Systemes Simulia Corp.

Inventor： Anand Narayan Pathak ,  Yangwook Choi ,  Rajesh Dadaji Nagose

IPC: G06F30/15 ,  G06F30/20 ,  G06T17/20

Abstract: A computer-aided design system includes a display device, a memory storing a plurality of response surface models, and a processor configured to: (a) display a graphical user interface that includes a model of a vehicle frame; (b) display a section configuration panel that includes one or more section dimension values for one or more section dimensions of a first section member of the plurality of section members; (c) retrieve a first response surface model based on values of the one or more section dimensions for the first section member; (d) determine one or more predicted values associated with the first section member based on the values of the section dimensions, the predicted values include one or more predicted crash resistances for the section member; and (e) display the predicted values, thereby allowing the user to evaluate the predicted values for suitability in vehicle design.

公开(公告)号：US11604557B2

公开(公告)日：2023-03-14

申请号：US17125695

申请日：2020-12-17

Applicant: DASSAULT SYSTEMES

Inventor： Guillaume Dayde ,  Christophe Delfino

IPC: G06F3/04815 ,  G06F3/04842 ,  G06F30/12 ,  G06F3/04845

Abstract: A field user interface that displays 3D objects, receives a selection of an object by the user, and uses a comparison between sizes of objects and thresholds to perform the selection, in order that the selected objects are consistent with the intent of the user.

公开(公告)号：US20230056102A1

公开(公告)日：2023-02-23

申请号：US17821335

申请日：2022-08-22

Applicant: DASSAULT SYSTEMES

Inventor： Antoine GUILLEMAIN ,  Benoît SARTHOU ,  Nicolas GAZÈRES

IPC: G06T7/00 ,  G06T7/11 ,  G06T17/20

Abstract: A method of segmentation of a medical image of a human brain including obtaining a voxelized 3D medical image of the human brain, computing at least two surface models of the human brain using a BET method, each surface model being computed for a unique fractional constant bt. For each computed surface model, determining a volume included in the computed surface model, thereby obtaining a set of sample pairs, fitting a curve to the sample pairs of the set, determining an inflection point of the curve, identifying a fractional constant bt corresponding to the determined inflection point, and computing the surface model of the human brain using the BET method that is dependent of bt.

公开(公告)号：US20230036219A1

公开(公告)日：2023-02-02

申请号：US17949823

申请日：2022-09-21

Applicant: DASSAULT SYSTEMES

Inventor： Serban Alexandru STATE ,  Eloi MEHR ,  Yoan SOUTY

IPC: G06T17/20 ,  G06F30/23 ,  G06F30/17 ,  G06T5/00

Abstract: A computer-implemented method for 3D reconstruction including obtaining 2D images and, for each 2D image, camera parameters which define a perspective projection. The 2D images all represent a same real object. The real object is fixed.
The method also includes obtaining, for each 2D image, a smooth map. The smooth map has pixel values, and each pixel value represents a measurement of contour presence. The method also includes determining a 3D modeled object that represents the real object. The determining iteratively optimizes energy. The energy rewards, for each smooth map, projections of silhouette vertices of the 3D modeled object having pixel values representing a high measurement of contour presence. This forms an improved solution for 3D reconstruction.

公开(公告)号：US11567579B2

公开(公告)日：2023-01-31

申请号：US17136912

申请日：2020-12-29

Applicant: DASSAULT SYSTEMES

Inventor： Fivos Doganis

IPC: G06F3/01 ,  G06F30/12 ,  G06F3/04815 ,  G06F3/04842 ,  G06F111/18 ,  G06F111/10

Abstract: A computer-implemented method for selecting an edge among edges of a 3D object in a 3D immersive environment of a CAD system. Each edge is oriented in the 3D immersive environment. The method comprises displaying the 3D object in the 3D immersive environment, detecting a hand gesture including all fingers folded except thumb, determining an oriented line formed with the folded fingers of the hand in the 3D immersive environment, and identifying the edge of the 3D object having the closest orientation with the oriented line.

公开(公告)号：US11562207B2

公开(公告)日：2023-01-24

申请号：US16727092

申请日：2019-12-26

Applicant: DASSAULT SYSTEMES

Inventor： Eloi Mehr

IPC: G06N3/04 ,  G06N20/00 ,  G06N5/04 ,  G06F30/27 ,  G06T19/00 ,  G06T17/00

Abstract: The disclosure notably relates to a computer-implemented method of machine-learning. The method includes obtaining a dataset including 3D modeled objects which each represent a respective mechanical part and further includes providing a set of neural networks. Each neural network has respective weights. Each neural network is configured for inference of 3D modeled objects. The method further includes modifying respective weights of the neural networks by minimizing a loss. For each 3D modeled object, the loss selects a term among a plurality of terms. Each term penalizes a disparity between the 3D modeled object and a respective 3D modeled object inferred by a respective neural network of the set. The selected term is a term among the plurality of terms for which the disparity is the least penalized. This constitutes an improved method of machine-learning with a dataset including 3D modeled objects which each represent a respective mechanical part.

公开(公告)号：US20220414295A1

公开(公告)日：2022-12-29

申请号：US17897310

申请日：2022-08-29

Applicant: Dassault Systemes Simulia Corp.

Inventor： Bernd Crouse ,  Rui Xu

IPC: G06F30/20 ,  G06T15/08 ,  E21B43/16 ,  G01F1/74 ,  G01F1/704

Abstract: Systems, methods, and computer program products can be used for visualizing the behavior of flow of two or more fluid phases, wherein a fluid phase behavior is represented in a visualization. One of the methods includes determining an occupation time, which is the amount of elapsed time from when a fluid phase first occupies a particular location until a second time. The method includes generating data for a visualization, with a location in the visualization corresponding to the particular location, and with the generated data for that location in the visualization indicating the occupation time

公开(公告)号：US20220398807A1

公开(公告)日：2022-12-15

申请号：US17342817

申请日：2021-06-09

Applicant: Dassault Systemes Simulia Corp.

Inventor： Zhuang Sun ,  Rafael Salazar-Tio ,  Andrew Fager ,  Bernd Crouse

IPC: G06T17/20 ,  G06T11/00 ,  G06T15/04

Abstract: Disclosed are computer implemented techniques for conducting a simulation of physical properties of a porous medium. The features include receiving a micro-CT 3D image that captures a representative elemental volume of the porous medium, the porous medium defined as having mineral types and fluid types with individual grains and grain to grain contacts, labeling the micro-CT 3D image as individual voxels according to mineral and fluid types and labeling the mineral type voxels as belonging to separated and fixed individual grains. The features also include transforming the labeled voxels into an unstructured conformal mesh representation for all grains and applying the unstructured conformal mesh representation to a parametric cohesive contact engine, with the parametric cohesive contact engine executing a parametric cohesive contact model that has an adjustable parameter, a critical separation δ0 conditioned according to consolidation level.

公开(公告)号：US20220309199A1

公开(公告)日：2022-09-29

申请号：US17210723

申请日：2021-03-24

Applicant: Dassault Systemes Simulia Corp.

Inventor： Kaustubh Rao

IPC: G06F30/12 ,  G06F30/20

Abstract: A computer-implemented method of integrating a calibrated model with physics computations in a computer-based simulation of a planned or existing real-world environment is disclosed. The method includes representing a selected component with a calibrated model thereof, wherein the calibrated model of the selected component defines an interface boundary and a modeled region, which is inside the interface boundary and distinct from a physics region, which is outside the interface boundary. The method includes producing modeled solution variables based on the calibrated model at computational points along the interface boundary of the calibrated model. The method includes producing computed solution variables based on physics computations at computational points in the physics region. The method includes exchanging the modeled variables with the computed variables across the interface boundary.