The alpha -histogram: Using Spatial Coherence to Enhance Histograms and Transfer Function Design
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Date
2006
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
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.
Description
@inproceedings{:10.2312/VisSym/EuroVis06/227-234,
booktitle = {EUROVIS - Eurographics /IEEE VGTC Symposium on Visualization},
editor = {Beatriz Sousa Santos and Thomas Ertl and Ken Joy},
title = {{The alpha -histogram: Using Spatial Coherence to Enhance Histograms and Transfer Function Design}},
author = {Lundström, Claes and Ynnerman, Anders and Ljung, Patric and Persson, Anders and Knutsson, Hans},
year = {2006},
publisher = {The Eurographics Association},
ISSN = {1727-5296},
ISBN = {3-905673-31-2},
DOI = {/10.2312/VisSym/EuroVis06/227-234}
}