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Instant Volume Visualization using Maximum Intensity Difference Accumulation

Stefan Bruckner, Meister Eduard Gröller

JOURNAL ARTICLE: Computer Graphics Forum, vol. 28, no. 3, pp. 775–782, 2009.

Abstract

It has long been recognized that transfer function setup for Direct Volume Rendering (DVR) is crucial to its usability. However, the task of finding an appropriate transfer function is complex and time-consuming even for experts. Thus, in many practical applications simpler techniques which do not rely on complex transfer functions are employed. One common example is Maximum Intensity Projection (MIP) which depicts the maximum value along each viewing ray. In this paper, we introduce Maximum Intensity Difference Accumulation (MIDA), a new approach which combines the advantages of DVR and MIP. Like MIP, MIDA exploits common data characteristics and hence does not require complex transfer functions to generate good visualization results. It does, however, feature occlusion and shape cues similar to DVR. Furthermore, we show that MIDA - in addition to being a useful technique in its own right- can be used to smoothly transition between DVR and MIP in an intuitive manner. MIDA can be easily implemented using volume raycasting and achieves real-time performance on current graphics hardware.

Published

Computer Graphics Forum

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BibTeX

@ARTICLE{Bruckner-2009-IVV,
  author = {Stefan Bruckner and Meister Eduard Gr{\"o}ller},
  title = {Instant Volume Visualization using Maximum Intensity Difference Accumulation},
  journal = {Computer Graphics Forum},
  year = {2009},
  volume = {28},
  pages = {775--782},
  number = {3},
  month = jun,
  abstract = {It has long been recognized that transfer function setup for Direct
	Volume Rendering (DVR) is crucial to its usability. However, the
	task of finding an appropriate transfer function is complex and time-consuming
	even for experts. Thus, in many practical applications simpler techniques
	which do not rely on complex transfer functions are employed. One
	common example is Maximum Intensity Projection (MIP) which depicts
	the maximum value along each viewing ray. In this paper, we introduce
	Maximum Intensity Difference Accumulation (MIDA), a new approach
	which combines the advantages of DVR and MIP. Like MIP, MIDA exploits
	common data characteristics and hence does not require complex transfer
	functions to generate good visualization results. It does, however,
	feature occlusion and shape cues similar to DVR. Furthermore, we
	show that MIDA - in addition to being a useful technique in its own
	right- can be used to smoothly transition between DVR and MIP in
	an intuitive manner. MIDA can be easily implemented using volume
	raycasting and achieves real-time performance on current graphics
	hardware.},
  event = {EuroVis 2009},
  issn = {0167-7055},
  keywords = {illustrative visualization, maximum intensity projection, direct volume
	rendering},
  location = {Berlin, Germany},
  url = {http://www.cg.tuwien.ac.at/research/publications/2009/bruckner-2009-IVV/}
}






 Last Modified: Stefan Bruckner, 2014-01-17