| dc.contributor.author | Lundström, Claes | en_US |
| dc.contributor.author | Ynnerman, Anders | en_US |
| dc.contributor.author | Ljung, Patric | en_US |
| dc.contributor.author | Persson, Anders | en_US |
| dc.contributor.author | Knutsson, Hans | en_US |
| dc.contributor.editor | Beatriz Sousa Santos and Thomas Ertl and Ken Joy | en_US |
| dc.date.accessioned | 2014-01-31T07:05:23Z | |
| dc.date.available | 2014-01-31T07:05:23Z | |
| dc.date.issued | 2006 | en_US |
| dc.identifier.isbn | 3-905673-31-2 | en_US |
| dc.identifier.issn | 1727-5296 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.2312/VisSym/EuroVis06/227-234 | en_US |
| dc.description.abstract | The high complexity of Transfer Function (TF) design is a major obstacle to widespread routine use of Direct Volume Rendering, particularly in the case of medical imaging. Both manual and automatic TF design schemes would benefit greatly from a fast and simple method for detection of tissue value ranges. To this end, we introduce the a-histogram, an enhancement that amplifies ranges corresponding to spatially coherent materials. The properties of the a-histogram have been explored for synthetic data sets and then successfully used to detect vessels in 20 Magnetic Resonance angiographies, proving the potential of this approach as a fast and simple technique for histogram enhancement in general and for TF construction in particular. | en_US |
| dc.publisher | The Eurographics Association | en_US |
| dc.subject | Categories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Picture/Image Generation; I.3.6 [Computer Graphics]: Methodology and Techniques; I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism; | en_US |
| dc.title | The alpha -histogram: Using Spatial Coherence to Enhance Histograms and Transfer Function Design | en_US |
| dc.description.seriesinformation | EUROVIS - Eurographics /IEEE VGTC Symposium on Visualization | en_US |
