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Gerald Farin

Publications and source records attributed to Gerald Farin.

2 recordsLinked to original sources
PubMed2004

Improving the accuracy of volumetric segmentation using pre-processing boundary detection and image reconstruction.

The concentration edge -detection and Gegenbauer image-reconstruction methods were previously shown to improve the quality of segmentation in magnetic resonance imaging. In this study, these methods are utilized as a pre-processing step to the Weibull E-SD field segmentation. It is demonstrated that the combination of the concentration edge detection and Gegenbauer reconstruction method improves the accuracy of segmentation for the simulated test data and real magnetic resonance images used in this study.

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PubMedDate not supplied

Crest lines for surface segmentation and flattening.

We present a method for extracting feature curves called crest lines from a triangulated surface. Then, we calculate the geodesic Voronoi diagram of crest lines to segment the surface into several regions. Afterward, barycentric surface flattening using theory from graph embeddings is implemented and, using the Geodesic Voronoi diagram, we develop a faster surface flattening algorithm.

Algorithms↗