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Compensating for Fingertip Size to Render Tactile Cues More Accurately

2020

Article

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Fingertip haptic feedback offers advantages in many applications, including robotic teleoperation, gaming, and training. However, fingertip size and shape vary significantly across humans, making it difficult to design fingertip interfaces and rendering techniques suitable for everyone. This article starts with an existing data-driven haptic rendering algorithm that ignores fingertip size, and it then develops two software-based approaches to personalize this algorithm for fingertips of different sizes using either additional data or geometry. We evaluate our algorithms in the rendering of pre-recorded tactile sensations onto rubber casts of six different fingertips as well as onto the real fingertips of 13 human participants. Results on the casts show that both approaches significantly improve performance, reducing force error magnitudes by an average of 78% with respect to the standard non-personalized rendering technique. Congruent results were obtained for real fingertips, with subjects rating each of the two personalized rendering techniques significantly better than the standard non-personalized method.

Author(s): Eric M. Young and David Gueorguiev and Katherine J. Kuchenbecker and Claudio Pacchierotti
Journal: IEEE Transactions on Haptics
Volume: 13
Number (issue): 1
Pages: 144--151
Year: 2020
Month: January

Department(s): Haptic Intelligence
Bibtex Type: Article (article)
Paper Type: Journal

DOI: 10.1109/TOH.2020.2966993
Note: Katherine J. Kuchenbecker and Claudio Pacchierotti contributed equally to this publication.

BibTex

@article{Young20-TH-Compensating,
  title = {Compensating for Fingertip Size to Render Tactile Cues More Accurately},
  author = {Young, Eric M. and Gueorguiev, David and Kuchenbecker, Katherine J. and Pacchierotti, Claudio},
  journal = {IEEE Transactions on Haptics},
  volume = {13},
  number = {1},
  pages = {144--151},
  month = jan,
  year = {2020},
  note = {Katherine J. Kuchenbecker and Claudio Pacchierotti contributed equally to this publication.},
  month_numeric = {1}
}