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2014 | OriginalPaper | Chapter

11. A Fabric-Based Approach for Softness Rendering

Authors : Matteo Bianchi, Alessandro Serio, Enzo Pasquale Scilingo, Antonio Bicchi

Published in: Multisensory Softness

Publisher: Springer London

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Abstract

In this chapter we describe a softness display based on the contact area spread rate (CASR) paradigm. This device uses a stretchable fabric as a substrate that can be touched by users, while contact area is directly measured via an optical system. By varying the stretching state of the fabric, different stiffness values can be conveyed to users. We describe a first technological implementation of the display and compare its performance in rendering various levels of stiffness with the one exhibited by a pneumatic CASR-based device. Psychophysical experiments are reported and discussed. Afterwards, we present a new technological implementation for the fabric-based display, with reduced dimensions and faster actuation, which enables rapid changes in the fabric stretching state. These changes are mandatory to properly track typical force/area curves of real materials. System performance in mimicking force-area curves obtained from real objects exhibits a high degree of reliability, also in eliciting overall discriminable levels of softness.

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previous chapter Compliance Perception Using Natural and Artificial Motion Cues

next chapter Haptic Augmentation in Soft Tissue Interaction

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Title: A Fabric-Based Approach for Softness Rendering
Authors: Matteo Bianchi
Alessandro Serio
Enzo Pasquale Scilingo
Antonio Bicchi
Publisher: Springer London
Book: Multisensory Softness
Print ISBN: 978-1-4471-6532-3

Electronic ISBN: 978-1-4471-6533-0

Copyright Year: 2014
DOI: https://doi.org/10.1007/978-1-4471-6533-0_11

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