کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
532893 870012 2007 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Medical image segmentation, volume representation and registration using spheres in the geometric algebra framework
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Medical image segmentation, volume representation and registration using spheres in the geometric algebra framework
چکیده انگلیسی

This paper presents an algorithm to model volumetric data and other one for non-rigid registration of such models using spheres formulated in the geometric algebra framework. The proposed algorithm for modeling, as opposite to the Union of Spheres method, reduces the number of entities (spheres) used to model 3D data. Our proposal is based in marching cubes idea using, however, spheres, while the Union of Spheres uses Delaunay tetrahedrization. The non-rigid registration is accomplished in a deterministic annealing scheme. At the preprocessing stage we segment the objects of interest by a segmentation method based on texture information. This method is embedded in a region growing scheme. As our final application, we present a scheme for surgical object tracking using again geometric algebra techniques.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pattern Recognition - Volume 40, Issue 1, January 2007, Pages 171–188
نویسندگان
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