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  4. Artificial Neural Networks for Impact Position Detection in Haptic Surfaces
 
conference paper

Artificial Neural Networks for Impact Position Detection in Haptic Surfaces

Mejia, Camilo Hernandez  
•
Germano, Paolo  
•
Correa Echeverri, Sebastian
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January 1, 2019
2019 Ieee International Ultrasonics Symposium (Ius)
IEEE International Ultrasonics Symposium (IUS)

Recently, the interest in haptic feedback is growing thanks to its ability to enhance the interaction with Human Machine Interfaces (HMIs). This research project is exploring the potential of machine learning combined with piezoelectric actuators to generate localized vibrational feedback over a thin rigid surface. With this goal in mind, this paper studied the potential of neural networks and machine learning algorithms to extract the position, where an impact has occurred. A data-set with 5310 stress signals labeled with the position at which the impact has occurred, was obtained using an automated Linear Impact Generator (LIG). Each signal was transformed into a spectrogram using the Fast Fourier Transform. During the study, different neural networks and machine learning algorithms were implemented and a supervised training process was carried out. At the end of the paper, the results of the different models are compared. The best model has an error (Validation MAE) of 4% and (Test MAE) of 8% in the impact position detection over an aluminum thin plate.

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Type
conference paper
DOI
10.1109/ULTSYM.2019.8925548
Web of Science ID

WOS:000510220100480

Author(s)
Mejia, Camilo Hernandez  
Germano, Paolo  
Correa Echeverri, Sebastian
Perriard, Yves  
Date Issued

2019-01-01

Publisher

IEEE

Publisher place

New York

Published in
2019 Ieee International Ultrasonics Symposium (Ius)
ISBN of the book

978-1-7281-4596-9

Series title/Series vol.

IEEE International Ultrasonics Symposium

Start page

1874

End page

1877

Subjects

impact position detection

•

surface haptics

•

piezoelectric transducers

•

machine learning

•

neural networks

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAI  
Event nameEvent placeEvent date
IEEE International Ultrasonics Symposium (IUS)

Glasgow, ENGLAND

Oct 06-09, 2019

Available on Infoscience
March 5, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/166985
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