Technical Section: Perceptual enhancement of two-level volume rendering
Computers and Graphics
Feature enhancement using locally adaptive volume rendering
VG'07 Proceedings of the Sixth Eurographics / Ieee VGTC conference on Volume Graphics
| Hi-index | 0.00 |
In this paper we present a two-level approach for fusing directvolume rendering (DVR) and maximum-intensity projection (MIP)within a joint rendering method. Different structures within thedata-set are rendered locally by either MIP or DVR on an object-by-object basis. Globally all the results of subsequent object renderingsare combined in a merging step (usually compositing in ourcase). This allows to selectively choose the most suitable techniquefor depicting each object within the data, while keeping the amountof information contained in the image at a reasonable level. Thisis especially useful when inner structures should be visualized togetherwith semi-transparent outer parts, similar to the focus-and-contextapproach known from information visualization. We alsopresent an implementation of our approach, which allows to explorevolumetric data using two-level rendering at interactive framerates.