Our two collaborative achievements have been presented at the ACM SIGGRAPH 2023 Emerging Technologies held in Los Angeles, California, USA from August 6 to 10, 2023.
Title
SomatoShift: A Wearable Haptic Display for Somatomotor Reconfiguration via Modifying Acceleration of Body Movement
Authors
Takeru Hashimoto1, Shigeo Yoshida2, Takuji Narumi1
1: The University of Tokyo
2: OSX
Research Overview
This study is a collaborative achievement with Kuzuoka-Narumi Laboratory (https://www.cyber.t.u-tokyo.ac.jp/en) at the Graduate School of Information Science and Technology, The University of Tokyo. This study aims to create a new physical sensation by intervening in human movements with a wearable force feedback device named “SomatoShift.” This device uses impedance control to instantaneously intervene in the wearer’s movements. This creates not the sensation of an external force being applied, but the sensation of a change in the physical characteristics of the body.
SomatoShift can support arm movements when worn on the hand. It would also provide walking assistance when worn on the leg. We expect the device to contribute to human augmentation and assistive technologies by allowing it to be worn freely on various parts of the body.
Title
Transtiff: Haptic Interaction with a Stick Interface with Various Stiffness
Authors
Ayumu Ogura1, Kodai Ito1, Shigeo Yoshida2, Kazutoshi Tanaka2, Yuichi Itoh1
1: Aoyama Gakuin University
2: OSX
Research Overview
This study is a collaborative achievement with Itoh Laboratory (https://x-lab.team) at the College of Science and Engineering, Aoyama Gakuin University. Human tactile perception of the hand is remarkably sensitive and can recognize the properties of targets manipulated with the fingertips or touched through the object. This study proposes a method to extend the tactile perception of the hand by controlling the stiffness and softness of the manipulated stick-shaped objects by the hand.
Our proposed device, “Transtiff,” is a stick-shaped interface equipped with a joint that can dynamically adjust its stiffness. The stiffness can be controlled by altering the pressure on the fluid within the tube of the articulations by a piston mechanism using small motors. This enables to create a wide range of sensations, including the feeling of painting with a brush or writing with a pen, through a single interface.
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