HIGH QUALITY ACCURATE SURFACE TRIANGULATION FROM A SIMPLEX MESH
First Claim
1. A method of providing an accurate triangulation surface mesh for representing a 3D object in a 3D image, said 3D object being segmented into a segmented 3D object and having a simplex surface mesh after segmentation into said segmented 3D object, comprising:
- providing a dual triangulation surface mesh of said simplex surface mesh, said dual triangulation surface mesh comprising at least three triangulation nodes, andreducing errors in the representation of the 3D object caused by said dual triangulation surface mesh byshifting at least one triangulation node of said dual triangulation surface mesh of the segmented 3D object for providing an improved triangulation surface mesh.
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Abstract
A method is disclosed for improving the accuracy of a surface mesh describing a segmented 3D object in a 3D image. A dual triangulation surface mesh is provided for a simplex surface mesh of the 3D object. Errors are reduced in the representation of the 3D object caused by the dual triangulation surface mesh by shifting triangulation nodes of the dual triangulation surface mesh of the segmented 3D object for providing a more accurate triangulation surface mesh. The 3D image is preferably a medical 3D image. Furthermore, a medical workstation, comprised in medical imaging system is disclosed for implementing the above improvement.
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Citations
13 Claims
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1. A method of providing an accurate triangulation surface mesh for representing a 3D object in a 3D image, said 3D object being segmented into a segmented 3D object and having a simplex surface mesh after segmentation into said segmented 3D object, comprising:
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providing a dual triangulation surface mesh of said simplex surface mesh, said dual triangulation surface mesh comprising at least three triangulation nodes, and reducing errors in the representation of the 3D object caused by said dual triangulation surface mesh by shifting at least one triangulation node of said dual triangulation surface mesh of the segmented 3D object for providing an improved triangulation surface mesh. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12, 13)
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9. A Medical Workstation for providing an accurate triangulation surface mesh for representing a 3D object in a 3D image, said 3D object being segmented into a segmented 3D object and having a simplex surface mesh after segmentation into said segmented 3D object, comprising means for:
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providing a dual triangulation surface mesh of said simplex surface mesh, said dual triangulation surface mesh comprising at least three triangulation nodes, and reducing errors in the representation of the 3D object caused by said dual triangulation surface mesh by shifting at least one triangulation node of said dual triangulation surface mesh of the segmented 3D object for providing an improved triangulation surface mesh. - View Dependent Claims (10)
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11. A computer-readable medium having embodied thereon a computer program for providing an accurate triangulation surface mesh for representing a 3D object in a 3D image, said 3D object being segmented into a segmented 3D object and having a simplex surface mesh after segmentation into said segmented 3D object, for processing by a processing device, the computer program comprising code segments for:
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providing a dual triangulation surface mesh of said simplex surface mesh, said dual triangulation surface mesh comprising at least three triangulation nodes, and reducing errors in the representation of the 3D object caused by said dual triangulation surface mesh by shifting at least one triangulation node of said dual triangulation surface mesh of the segmented 3D object for providing an improved triangulation surface mesh.
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Specification