Documentation/Nightly/Modules/QuadEdgeSurfaceMesher
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Introduction and Acknowledgements
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Module Description
This module can be used as an alternative to ModelMaker to generate a smooth triangulated surface of a segmented label with improved (in the opinion of the author of this module) control over the number of triangles in the output surface, as well as improved visual appearance of the result. In the example below, the Marching Cubes output has 18750 triangles (blue), ModelMaker with 0.5 smoothing and 0.5 decimation generates 11173 triangles, (red) and the output of QuadEdgeSurfaceMesher (yellow) contains 1606 triangles. The result produced by ModelMaker with decimation setting set to 0.99 (a parameter similar to the decimation constant of the module being presented) produces triangulation that looks too embarrassing to show here.
 Visualization of the result (wireframe visualization) of the marching cubes algorithm (blue), ModelMaker output with 0.5 decimation and 0.5 smoothing settings (red) and the QuadEdgeSurfaceMesher module (single parameter DecimationConstant = 0.01) (yellow). Note the number, uniformity and quality of the triangles in the yellow trianglulation. |
This module was motivated by the need to generate smooth compact surface triangulations for prostate MRI images.
The module operates by applying Marching Cubes algorithm to the input segmentation, and then uses the ITK filters implementing the approach described in [1]. Currently, the module does not support multiple labels.
Use Cases
- MRI-ultrasound fusion biopsy of the prostate (primary)
- therapy planning
- treatment response assessment
Tutorials
None at this time ... stay tuned!
Parameters:
- IO: Input/output parameters
- Input image (inputImageName): Segmentation label image
- Label to mesh (labelId): Label to mesh. By default, segmentation corresponding to label 1 will be meshed.
- Decimation constant (decimationConst): Number of cells in the output mesh will be the original number of cells times the decimation constant
- Output triangulated surface (outputMeshName): Surface
List of parameters generated transforming this XML file using this XSL file. To update the URL of the XML file, edit this page.
Similar Modules
ModelMaker
References
[1] Gelas A, Gouaillard A, Megason S (2008) Surface meshes incremental decimation framework. Insight J http://www.insight-journal.org/browse/publication/298
[2] Fedorov A, Khallaghi S, Antonio Sánchez C, Lasso A, Fels S, Tuncali K, Neubauer Sugar E, Kapur T, Zhang C, Wells W, Nguyen PL, Abolmaesumi P, Tempany C. (2015) Open-source image registration for MRI–TRUS fusion-guided prostate interventions. Int J CARS: 1–10. Available: http://link.springer.com/article/10.1007/s11548-015-1180-7.
[3] Fedorov A, Nguyen PL, Tuncali K, Tempany C. (2015). Annotated MRI and ultrasound volume images of the prostate. Zenodo. http://doi.org/10.5281/zenodo.16396
