Removing sharp cusps from 3D shapes for additive manufacturing
AssigneeSiemens Product Lifecycle Management Software Inc.
InventorsErhan Arisoy, Suraj Ravi Musuvathy, Livio Dalloro
Life of this patent
Estimating the term…
Abstract
A method for processing a three-dimensional (3D) mesh model includes receiving a 3D mesh model. One or more regions including a potential sharp cusp are automatically detected. The automatically detected one or more regions are displayed to a user and an active region of the 3D mesh model is defined by the user. Sphere fitting and Laplacian smoothing are applied to the designated active region to remove a sharp cusp therefrom and to obtain a modified 3D mesh model.
Claims18
A method for processing a three-dimensional (3D) mesh model, comprising:
- receiving a 3D mesh model;
- automatically detecting one or more regions including a potential sharp cusp;
- displaying the automatically detected one or more regions to a user and receiving input, from the user, designating an active region of the 3D mesh model;
- and
- applying sphere fitting and Laplacian smoothing to the designated active region to remove a sharp cusp therefrom and to obtain a modified 3D mesh model, wherein applying the sphere fitting and Laplacian smoothing includes performing Laplacian energy minimization in an iterative fashion.
A method for manufacturing a personalized medical device, comprising:
- acquiring an image including a patient anatomical geometry;
- creating a three-dimensional (3D) mesh model from the acquired image;
- automatically detecting one or more regions including a potential sharp cusp from the created 3D mesh model;
- designating an active region from among the one or more automatically detected regions;
- applying sphere fitting and Laplacian smoothing to the designated active region to remove a sharp cusp therefrom and to obtain a modified 3D mesh mode wherein applying the sphere fitting and Laplacian smoothing includes performing Laplacian energy minimization in an iterative fashion;
- and
- 3D printing the modified 3D mesh model using a 3D printer.
A computer system comprising:
- a processor;
- and
- a non-transitory, tangible, program storage medium, readable by the computer system, embodying a program of instructions executable by the processor to perform method steps for processing a three-dimensional (3D) mesh model, the method comprising:
- receiving a 3D mesh model;
- automatically detecting one or more regions including a potential sharp cusp;
- displaying the automatically detecting one or more regions to a user and receiving input, from the user, designating an active region of the 3D mesh model;
- and
- applying sphere fitting and Laplacian smoothing to the designated active region to remove a sharp cusp therefrom and to obtain a modified 3D mesh model, wherein the Laplacian smoothing with Laplacian energy minimization in an iterative fashion.
Dependencies are inferred from the claim text.