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WSCG
2004

User-Centric Transfer Function Specification in Augmented Reality

11 years 1 months ago
User-Centric Transfer Function Specification in Augmented Reality
The quality of a 3D volume visualization heavily depends on a representative transfer function which is responsible for mapping the original density values to color and opacity. Finding a suitable transfer function is often a tedious task if done manually in a trial-and-error fashion by specifying piecewise linear functions for each color and opacity channel. Contrary, image-based models exploring features like gradient magnitude, histogram, or edge detection do not consider much user interaction as performed almost autonomously. Hence, we propose a new paradigm which integrates the user into the transfer function specification process. This allows an intuitive specification within an Augmented Reality environment by providing different predefined shape functions which can easily be adjusted. Moreover, a new approach is introduced which utilizes spatial information as an additional transfer function. This opens a completely new way of exploration in volume visualization. Keywords tran...
Bernhard Reitinger, Christopher Zach, Alexander Bo
Added 31 Oct 2010
Updated 31 Oct 2010
Type Conference
Year 2004
Where WSCG
Authors Bernhard Reitinger, Christopher Zach, Alexander Bornik, Reinhard Beichel
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