About the Authors

Tapio Manninen

tapio.manninen@tut.fi

Affiliation Department of Signal Processing, Tampere University of Technology, Tampere, Finland

Heikki Huttunen

Affiliation Department of Signal Processing, Tampere University of Technology, Tampere, Finland

Pekka Ruusuvuori

Affiliation Department of Signal Processing, Tampere University of Technology, Tampere, Finland

Matti Nykter

Affiliation Institute of Biomedical Technology, University of Tampere, Tampere, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TM HH. Performed the experiments: TM. Analyzed the data: TM HH PR. Wrote the paper: TM HH PR MN.