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The alpha-histogram: Using Spatial Coherence to Enhance Histograms and Transfer Function Design
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- Lundström, Claes, 1973- (author)
- Linköpings universitet,Visuell informationsteknologi och applikationer,Tekniska högskolan,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Ynnerman, Anders (author)
- Linköpings universitet,Visuell informationsteknologi och applikationer,Tekniska högskolan,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Ljung, Patric, 1968- (author)
- Linköpings universitet,Visuell informationsteknologi och applikationer,Tekniska högskolan
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- (creator_code:org_t)
- 2006
- 2006
- English.
- In: Proceedings Eurographics/IEEE Symposium on Visualization 2006, Lisbon, Portugal. ; , s. 227-234
- Conference paper (other academic/artistic)
Abstract
Subject headings
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- 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.
Keyword
- Picture/Image Generation; Methodology and Techniques; Three-Dimensional Graphics and Realism
- TECHNOLOGY
- TEKNIKVETENSKAP
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- vet (subject category)
- kon (subject category)
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