Title :
Two-level volume rendering - fusing MIP and DVR
Author :
Hauser, Helwig ; Mroz, Lukas ; Bischi, Gian-Italo ; Gröller, M. Eduard
Author_Institution :
VRVis Res. Centre, Wien Univ. of Technol., Austria
Abstract :
Presents a two-level approach for fusing direct volume rendering (DVR) and maximum-intensity projection (MIP) within a joint rendering method. Different structures within the data set are rendered locally by either MIP or DVR on an object-by-object basis. Globally, all the results of subsequent object renderings are combined in a merging step (usually compositing in our case). This allows us to selectively choose the most suitable technique for depicting each object within the data, while keeping the amount of information contained in the image at a reasonable level. This is especially useful when inner structures should be visualized together with semi-transparent outer parts, similar to the focus-and-context approach known from information visualization. We also present an implementation of our approach which allows us to explore volumetric data using two-level rendering at interactive frame rates.
Keywords :
data visualisation; merging; rendering (computer graphics); solid modelling; compositing; direct volume rendering; dynamical systems; focus-and-context approach; information visualization; inner structure visualization; interactive frame rate; locally rendered structures; maximum-intensity projection; medical applications; merging; object-by-object rendering; semi-transparent outer parts; two-level volume rendering; volumetric data; Biomedical engineering; Biomedical imaging; Chromium; Computer graphics; Data visualization; Focusing; Image generation; Merging; Rendering (computer graphics); Transfer functions;
Conference_Titel :
Visualization 2000. Proceedings
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6478-3
DOI :
10.1109/VISUAL.2000.885697