Moment curves

Authors:
Daniel Patel;Martin Haidacher;Jean-Paul Balabanian;Eduard M. Groller
Affiliations:
Christian Michelsen Research, Bergen, Norway;Institute of Computer Graphics and Algorithms, Vienna University of Technology, Austria;Department of Informatics, University of Bergen, Norway;Institute of Computer Graphics and Algorithms, Vienna University of Technology, Austria
Venue:
PACIFICVIS '09 Proceedings of the 2009 IEEE Pacific Visualization Symposium
Year:
2009

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Abstract

We define a transfer function based on the first and second statistical moments. We consider the evolution of the mean and variance with respect to a growing neighborhood around a voxel. This evolution defines a curve in 3D for which we identify important trends and project it back to 2D. The resulting 2D projection can be brushed for easy and robust classification of materials and material borders. The transfer function is applied to both CT and MR data.