Parallel Reflective Symmetry Transformation for Volume Data

Hong, Yuan; Shen, Han-Wei

Parallel Reflective Symmetry Transformation for Volume Data

Files

077-083.pdf (175.48 KB)

Date

2007

Authors

Hong, Yuan
Shen, Han-Wei

Publisher

The Eurographics Association

Abstract

Many volume data possess symmetric features that can be clearly observed, for example, those existed in diffusion tensor image data sets. The exploitations of symmetries for volume data sets, however, are relatively limited due to the prohibitive computational cost of detecting the symmetries. In this paper we present an efficient parallel algorithm for symmetry computation in volume data represented by regular grids. Optimization is achieved by converting the raw data into a hierarchical tree-like structure.We design a novel algorithm to partition the tree and distribute the data among processors to minimize the data dependency at run time. The computed symmetries are useful for several volume data applications, including POF minimal opacity selection, transfer function generation and slice position selection.

        @inproceedings{10.2312:EGPGV/EGPGV07/077-083
,
booktitle = {Eurographics Symposium on Parallel Graphics and Visualization
},
editor = {Jean M. Favre and Luis Paulo Santos and Dirk Reiners
},
title = {{Parallel Reflective Symmetry Transformation for Volume Data
}},
author = {Hong, Yuan and 
Shen, Han-Wei
},
year = {2007
},
publisher = {The Eurographics Association
},
ISSN = {1727-348X
},
ISBN = {978-3-905673-50-0
},
DOI = {10.2312/EGPGV/EGPGV07/077-083
}
}