|Title||Optimal Derotation of Shared Acceleration Time Series by Determining Relative Spatial Alignment|
|Publication Type||Journal Article|
|Year of Publication||2015|
|Authors||Mayrhofer, R., Hlavacs H., & Findling R. Dieter|
|Journal||International Journal of Pervasive Computing and Communications (IJPCC)|
The purpose of this article is to improve detection of common movement. Detecting if two or multiple devices are moved together is an interesting problem for different applications. However, these devices may be aligned arbitrarily with regards to each other, and the three dimensions sampled by their respective local accelerometers can therefore not be directly compared. The typical approach is to ignore all angular components and only compare overall acceleration magnitudes – with the obvious disadvantage of discarding potentially useful information.