Interactive Previewing for Transfer Function Specification in Volume Rendering

Botha, Charl P.; Post, Frits H.

Interactive Previewing for Transfer Function Specification in Volume Rendering

Files

071-076.pdf (2.46 MB)

Date

2002

Authors

Botha, Charl P.
Post, Frits H.

Publisher

The Eurographics Association

Abstract

This paper presents a new technique for supplying meaningful visual feedback during direct volume rendering transfer function specification. The technique uses meta-data calculated during a pre-processing step to generate interactively an approximate volume rendering that is voxel-registered with a single user-selected slice. Because of the registration, this preview can easily be alpha-blended with a grey-scale image of the data that is being volume rendered. In this way, the user gets real-time visual feedback on her transfer function specification with regards to both the expected composited optical properties and the "fidelity" (how closely the rendering matches the original data) of the resulting rendering.

        @inproceedings{10.2312:VisSym/VisSym02/071-076
,
booktitle = {Eurographics / IEEE VGTC Symposium on Visualization
},
editor = {D. Ebert and P. Brunet and I. Navazo
},
title = {{Interactive Previewing for Transfer Function Specification in Volume Rendering
}},
author = {Botha, Charl P. and 
Post, Frits H.
},
year = {2002
},
publisher = {The Eurographics Association
},
ISSN = {1727-5296
},
ISBN = {1-58113-536-X
},
DOI = {10.2312/VisSym/VisSym02/071-076
}
}