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2004

Efficient representation and extraction of 2-manifold isosurfaces using kd-trees

11 years 11 months ago
Efficient representation and extraction of 2-manifold isosurfaces using kd-trees
In this paper, we propose the utilization of a kd-tree based hierarchy as an implicit object representation. Compared to an octree, the kd-tree based hierarchy is superior in terms of adaptation to the object surface. In consequence, we obtain considerably more compact implicit representations especially in case of thin object structures. We describe a new isosurface extraction algorithm for this kind of implicit representation. In contrast to related algorithms for octrees, it generates 2-manifold meshes even for kd-trees with cells containing multiple surface components. The algorithm retains all the good properties of the Dual Contouring approach [10] like feature preservation, computational efficiency, etc. In addition, we present a simplification framework for the surfaces represented by the kd-tree based on quadric error metrics. We adapt this framework to quantify the influence of topological changes, thereby allowing controlled topological simplification of the object. The adv...
Alexander Greß, Reinhard Klein
Added 17 Dec 2010
Updated 17 Dec 2010
Type Journal
Year 2004
Where CVGIP
Authors Alexander Greß, Reinhard Klein
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