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公开(公告)号：US09881388B2
公开(公告)日：2018-01-30
申请号：US14286952
申请日：2014-05-23
Applicant: Dassault Systemes
Inventor： Remy Rorato , Nicolas Duny
Abstract: It is provided a computer-implemented method for compressing a three-dimensional modeled object, wherein the method comprises providing a boundary representation of the modeled object; determining first data, that describe a mapping from the range of a reference function to the range of another function, and second data, that describe a mapping from the domain of the other function to the domain of the reference function which, when composed with the reference function and the mapping from the range of the reference function to the range of the other function, leads to the same result as applying the other function; and replacing in the geometrical data the other function by the first data, the second data and a pointer to the reference function. Such a method improves the compression of a 3D modeled object.
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公开(公告)号：US09875577B2
公开(公告)日：2018-01-23
申请号：US14139491
申请日：2013-12-23
Applicant: Dassault Systemes
Inventor： Laurent Quilot , Abdelmonem Feki , Tuan Anh Phung , Daniel Roudil
CPC classification number: G06T17/20 , G06T17/205
Abstract: It is proposed a computer-implemented method for tessellating a three-dimensional modeled object parameterized for tessellation. The method comprises the steps of providing 2D meshes associated to geometrical data of a boundary representation of the modeled object, the boundary representation comprising the geometrical data including parametric surfaces and topological data including a set of faces each defined as a portion of the 2D domain of a respective parametric surface; and determining 3D meshes by evaluating the position of vertices of the 2D meshes on the respective parametric surfaces.Such a solution improves the tessellation of a 3D modeled object.
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公开(公告)号：US09875555B2
公开(公告)日：2018-01-23
申请号：US14945055
申请日：2015-11-18
Applicant: DASSAULT SYSTEMES
Inventor： Frederic Letzelter , Amelie Renard , Laura Peythieux
IPC: G06K9/34 , G06T7/60 , G06K9/46 , G06T11/20 , G06T11/00 , G06K9/52 , G06T7/73 , G06T7/11 , G06T7/13 , G06T7/187
CPC classification number: G06T7/60 , G06K9/4604 , G06K9/52 , G06K2009/4666 , G06T7/11 , G06T7/13 , G06T7/187 , G06T7/73 , G06T11/001 , G06T11/203 , G06T2207/10024 , G06T2207/20021 , G06T2207/20096
Abstract: The invention is directed to a computer-implemented method for partitioning an image. The method comprises displaying an image that comprises a border; drawing a curve over the image; computing all closed areas delimited by the curve and the border of the image, each closed area being independent from the other computed closed areas and individually selectable.
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公开(公告)号：US20170372492A1
公开(公告)日：2017-12-28
申请号：US15605659
申请日：2017-05-25
Applicant: Dassault Systemes
Inventor： Fivos Doganis
Abstract: A computer-implemented method of calibrating a camera includes: a. making a video screen display a calibration pattern; b. acquiring from the camera a video stream of a scene comprising said calibration pattern; c. determining a modified calibration pattern depending on the acquired video stream, and making the screen display it; said steps a. to c. being iterated a plurality of times; and then d. estimating intrinsic calibration parameters of the camera by processing the acquired video streams. A computer program product, computer-readable data-storage medium and computer system for carrying out such a method.
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公开(公告)号：US20170372491A1
公开(公告)日：2017-12-28
申请号：US15601619
申请日：2017-05-22
Applicant: Dassault Systemes
Inventor： Fivos Doganis
Abstract: A computer-implemented method of calibrating a camera, comprises the steps of: a. acquiring a video stream from said camera (CAM), and displaying it on a screen (DY); b. displaying on the screen, superimposed to the video stream, a representation of a target area (102); c. detecting a calibration pattern (100) in the video stream and periodically check whether it fits within the calibration area; d. when the calibration pattern is found to fit within the calibration area, extracting an image thereof from the video stream; said steps a. to d. being iterated a plurality of times using respective target areas corresponding to different positions of a physical support (101) carrying the calibration pattern; and then e. estimating intrinsic calibration parameters of the camera by processing said images. A computer program product, computer-readable data-storage medium and computer system for carrying out such a method.
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Patent Agency Ranking
公开(公告)号：US09836884B2
公开(公告)日：2017-12-05
申请号：US14139539
申请日：2013-12-23
Applicant: Dassault Systemes
Inventor： Laurent Quilot , Abdelmonem Feki , Tuan Anh Phung , Daniel Roudil
Abstract: It is proposed a computer-implemented method for parameterizing a three-dimensional modeled object for tessellation. The method comprising the steps of providing a boundary representation of the modeled object, the boundary representation comprising geometrical data including parametric surfaces and topological data including a set of faces each defined as a portion of the 2D domain of a respective parametric surface; determining 2D meshes each fitting a respective face; and associating the 2D meshes to the geometrical data of the boundary representation. Such a solution improves the tessellation of a 3D modeled object.
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公开(公告)号：US20170344920A1
公开(公告)日：2017-11-30
申请号：US15164431
申请日：2016-05-25
Applicant: Dassault Systemes Americas Corp.
Inventor： Girish B. Shenoy
Abstract: Computer systems and methods that identify and assess risk in a supply chain network. The systems and methods create a visual model of a supply chain network, which includes: (i) logical stations graphically representing the physical sites in the supply chain network, and (ii) logical transits graphically representing the transportation of materials between the represented physical sites. For each given logical station, the systems and methods identify risk values for risk categories associated with the physical site. The systems and methods identify the risk values based on physical conditions related to: (a) the physical site represented by the given logical station, (b) each physical site represented by a logical station positioned in a downstream supply chain path to the given logical station, and (c) each transportation represented by a logical transit positioned in the downstream supply chain path. The systems and methods generate dynamic graphical indications comparing the identified risk values for the risk categories and total risk values for the represented physical sites and transportations.
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公开(公告)号：US20170293705A1
公开(公告)日：2017-10-12
申请号：US15096887
申请日：2016-04-12
Applicant: Dassault Systemes Simulia Corp.
CPC classification number: G06F17/5009 , G06T19/006 , G06T2210/61
Abstract: Embodiments of the present invention provide an augmented reality by defining a model representing a real-world system. After defining the model, a plurality of model simulations are performed using the defined model which produce predicted field data that is stored in memory. In turn, data from one or more sensors in the real-world system is received and the defined model is calibrated using the received field data relative to the stored predicted field data. Then, an augmented reality of the real-world system is provided using the calibrated model.
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公开(公告)号：US09767250B2
公开(公告)日：2017-09-19
申请号：US14570852
申请日：2014-12-15
Applicant: Dassault Systemes
Inventor： Romain Tertiaux , Nicolas Drufin
Abstract: A computer-implemented method for designing a biological model provides a set of biological models, each biological model comprising a plurality of elements and interactions between elements. Next the method provides groups of elements identified as identical, each element having an associated biological model. The method moves an element from a first group to a second group in order to correct the grouping of the elements; updates both groups; and creates a combined model by combining the set of biological models according to the updated groups.
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公开(公告)号：US20170193699A1
公开(公告)日：2017-07-06
申请号：US15391950
申请日：2016-12-28
Applicant: Dassault Systemes
Inventor： Eloi Mehr , Vincent Guitteny
CPC classification number: G06T17/205 , G06F17/10 , G06T5/00 , G06T7/149 , G06T7/194 , G06T2200/24 , G06T2207/10024 , G06T2207/10028 , G06T2207/20
Abstract: The invention notably relates to a computer-implemented method for reconstructing a 3D modeled object that represents a real object, from a 3D mesh and measured data representative of the real object, the method comprising providing a set of deformation modes; determining a composition of the deformation modes which optimizes a program that rewards fit between the 3D mesh as deformed by the composition and the measured data, and that further rewards sparsity of the deformation modes involved in the determined composition; and applying the composition to the 3D mesh. The method improves reconstructing a 3D modeled object that represents a real object.
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