68U05 Computer graphics; computational geometry [See also 65D18]
Filtern
Erscheinungsjahr
- 2014 (1)
Dokumenttyp
- ZIB-Report (1)
Sprache
- Englisch (1)
Volltext vorhanden
- ja (1)
Gehört zur Bibliographie
- nein (1) (entfernen)
Schlagworte
- Interaction Techniques (1)
- Picking (1)
- Surfaces (1)
- Volume Rendering (1)
This paper presents an algorithm called surfseek for selecting surfaces
on the most visible features in direct volume rendering (DVR). The
algorithm is based on a previously published technique (WYSIWYP) for
picking 3D locations in DVR. The new algorithm projects a surface patch
on the DVR image, consisting of multiple rays. For each ray the algorithm
uses WYSIWYP or a variant of it to find the candidates for the
most visible locations along the ray. Using these candidates the algorithm
constructs a graph and computes a minimum cut on this graph. The minimum
cut represents a very visible but relatively smooth surface. In the
last step the selected surface is displayed. We provide examples for the
results in real-world dataset as well as in artificially generated datasets.