Statistics of ambiguous rotations
Statistics Theory
2017-01-09 v1 Statistics Theory
Abstract
The orientation of a rigid object can be described by a rotation that transforms it into a standard position. For a symmetrical object the rotation is known only up to multiplication by an element of the symmetry group. Such ambiguous rotations arise in biomechanics, crystallography and seismology. We develop methods for analyzing data of this form. A test of uniformity is given. Parametric models for ambiguous rotations are presented, tests of location are considered, and a regression model is proposed. A brief illustrative example involving orientations of diopside crystals is given.
Cite
@article{arxiv.1701.01579,
title = {Statistics of ambiguous rotations},
author = {R. Arnold and P. E. Jupp and H. Schaeben},
journal= {arXiv preprint arXiv:1701.01579},
year = {2017}
}
Comments
20 pages, 2 figures