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IEEE Transactions on Haptics

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https://read.qxmd.com/read/31095499/resonant-frequency-skin-stretch-for-wearable-haptics
#1
Peter B Shull, Tian Tan, Heather Marie Culbertson, Xiangyang Zhu, Allison Okamura
Resonant frequency skin stretch uses cyclic lateral skin stretches matching the skin's resonant frequency to create highly noticeable stimuli, signifying a new approach for wearable haptic stimulation. Three experiments were performed to explore biomechanical and perceptual aspects of resonant frequency skin stretch. In the first experiment, effective skin resonant frequencies were quantified at the forearm, shank, and foot. In the second experiment, perceived haptic stimuli were characterized for skin stretch actuations across a spectrum of frequencies...
May 16, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/31071053/skin-stretch-haptic-feedback-to-convey-closure-information-in-anthropomorphic-under-actuated-upper-limb-soft-prostheses
#2
Edoardo Battaglia, Janelle Clark, Matteo Bianchi, Manuel Catalano, Antonio Bicchi, Marcia K O'Malley
Restoring hand function in individuals with upper limb loss is a challenging task, made difficult by the complexity of human hands from both a functional and sensory point of view. Users of commercial prostheses, even sophisticated devices, must visually attend to the hand to know its state, since in most cases they are not provided with any direct sensory information. Among the different types of haptic feedback that can be delivered, information on hand opening is particularly likely to reduce the requirement of constant visual attention...
May 8, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/31056520/low-cost-haptic-simulation-using-material-fracture
#3
David Frederick Pepley, Hong-En Chen, Yichun Tang, Sanjib Adhikary, Scarlett Rae Miller, Jason Zachary Moore
Medical simulation training is widely used to effectively train for invasive medical procedures such peripheral nerve blocks. Traditionally, accurate haptic training relies on expensive cadavers, mannequins, or advanced haptic robots. Proposed herein is a novel concept for haptic training called the Low Cost Haptic Force Needle Insertion Simulator (LCNIS), which uses material fracture inside disposable cartridges to accurately replicate the force of inserting a needle into tissue. Cadaver and material fracture experiments are performed to develop and determine the accuracy of the LCNIS...
May 2, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/31034421/a-haptic-shared-control-architecture-for-guided-multi-target-robotic-grasping
#4
Firas Abi-Farraj, Claudio Pacchierotti, Oleg Arenz, Gerhard Neumann, Paolo Robuffo Giordano
Although robotic telemanipulation has always been a key technology for the nuclear industry, little advancement has been seen over the last decades. Despite complex remote handling requirements, simple mechanically-linked master-slave manipulators still dominate the field. Nonetheless, there is a pressing need for more effective robotic solutions able to significantly speed up the decommissioning of legacy radioactive waste. This paper describes a novel haptic shared-control approach for assisting a human operator in the sort and segregation of different objects in a cluttered and unknown environment...
April 26, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/31034420/combining-haptic-and-bang-bang-braking-actions-for-passive-robotic-walker-path-following
#5
Marco Andreetto, Stefano Divan, Francesco Ferrari, Daniele Fontanelli, Luigi Palopoli, Domenico Prattichizzo
Robotic walkers are a promising solution for physical and cognitive support to older adults. This paper proposes a low cost path following strategy combining the advantages of a simple mechanical braking guidance, such as safety, passivity and a low cost, and the ones of a vibrotactile haptic guidance, such as comfort and portability. The user is guided by providing indications on the directions of motion using the haptic interface so that he/she can autonomously and comfortably follow the planned path. However, whenever the user significantly departs from the path (for instance s/he gets too close to obstacles), the braking system kicks in to safely steer the user back along the proper direction...
April 26, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/31021806/wearable-tactile-display-based-on-thermal-expansion-of-nichrome-wire
#6
Hiroyuki Kajimoto, Lynette Jones
A wearable tactile display needs to be compact and lightweight, and ideally should be able to present vibration, force and temperature information to the hand. In many contexts spatially distributed tactile information is needed such as when identifying the shape of objects. In this paper, a multi-element tactile display is described based on the thermal expansion and contraction of nichrome wire. The device comprises elastic rods that are pulled by nichrome wires ( 30 μm in diameter). When an electrical current is applied to the wire, displacement of the elastic rod occurs with thermal elongation of the wire...
April 23, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/31021805/accuracy-of-dynamic-force-compensation-varies-with-direction-and-speed
#7
Benjamin Rigsby, Kyle Brandon Reed
This study investigates physical responses to force perturbations while tracking a moving target. The results show accuracy depends on the direction of a force perturbation and speed of the task but generally not on hand. There are also differences in responses when the force is first applied and when it is removed.
April 23, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30990440/back-of-device-force-feedback-improves-touch-screen-interaction-for-mobile-devices
#8
Jens Maiero, David Eibich, Ernst Kruijff, Andre Hinkenjann, Wolfgang Stuerzlinger, Hrvoje Benko, George Ghinea
Touchscreen interaction suffers from occlusion problems as fingers can cover small targets, which makes interacting with such targets challenging. To improve touchscreen interaction accuracy and consequently the selection of small or hidden objects we introduce a back-of-device force feedback system for smartphones. We introduce a new solution that combines force feedback on the back to enhance touch input on the front screen. The interface includes three actuated pins at the back of a smartphone. All three pins are driven by micro servos and can be actuated up to a frequency of 50Hz and a maximum amplitude of 5mm...
April 15, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30946678/passive-force-feedback-gloves-with-joint-based-variable-impedance-using-layer-jamming
#9
Yu Zhang, Dangxiao Wang, Ziqi Wang, Yuru Zhang, Jing Xiao
Force feedback gloves have great potential in enhancing the fidelity of virtual reality and tele-operation systems. It is a challenge to develop multi-finger force feedback gloves with light weight. In this paper, we propose a solution using layer jamming sheet (LJS) on each finger joint. In simulating free space, the LJS is soft and easy to deform, which allows the finger joints to move freely with a small resistance force. In simulating constrained space, the LJS becomes stiff, which provides resistance torques to prevent rotation of finger joints...
April 1, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30932849/computational-and-psychophysical-experiments-on-the-pacinian-corpuscle-s-ability-to-discriminate-complex-stimuli
#10
Tiffany Louisa Senkow, Nicholas Theis, Julia Quindlen-Hotek, Victor Barocas
Recognizing and discriminating vibrotactile stimuli is an essential function of the Pacinian corpuscle. This function has been studied at length in both a computational and an experimental setting, but the two approaches have rarely been compared, especially when the computational model has a high level of structural detail. In this work, we explored whether the predictions of a multiscale, multiphysical computational model of the Pacinian corpuscle can predict the outcome of a corresponding psychophysical experiment...
March 26, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30908263/midair-haptic-pursuit
#11
Azuma Yoshimoto, Keisuke Hasegawa, Yasutoshi Makino, Hiroyuki Shinoda
In human vision, smooth pursuit eye movement is the basic ability to visually follow a moving object by keeping it at the sight center. In this study, we validate that a human hand has a similar ability to track a midair haptic stimulus, i.e., a human palm exposed to a point vibration by a noncontact ultrasound tactile display can follow the continuous movement of the stimulation point. The experimental results show that the trackable velocity is 10 cm/s for motion parallel to the palm, when the initial velocity is zero...
March 19, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30869631/dynamics-and-perception-in-the-thermal-grill-illusion
#12
Shriniwas Patwardhan, Anzu Kawazoe, David Kerr, Masashi Nakatani, Yon Visell
A basic challenge in perception research is to understand how sensory inputs from physical environments and the body are integrated in order to facilitate perceptual inferences. Thermal perception, which arises through heat transfer between extrinsic sources and body tissues, is an integral part of natural haptic experiences, and thermal feedback technologies have potential applications in wearable computing, virtual reality, and other areas. While physics dictates that thermal percepts can be slow, often unfolding over timescales measured in seconds, much faster perceptual responses can occur in the thermal grill illusion...
March 11, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30835230/thermal-tactile-integration-in-object-temperature-perception
#13
Hsin-Ni Ho, Hiu Mei Chow, Sayaka Tsunokake, Warrick Roseboom
The brain consistently faces a challenge of whether and how to combine the available information sources to estimate the properties of an object explored by hand. While object perception is an inference process involving multisensory inputs, thermal referral (TR) is an illusion demonstrating how interaction between thermal and tactile systems can lead to deviations from physical reality - When observers touch three stimulators simultaneously with the middle three fingers of one hand but only the outer two stimulators are heated (or cooled), thermal uniformity is perceived across three fingers...
February 26, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30794519/effects-of-stimulus-exploration-length-and-time-on-the-integration-of-information-in-haptic-softness-discrimination
#14
Anna Metzger, Knut Drewing
In haptic perception information is often sampled serially (e.g. a stimulus is repeatedly indented to estimate its softness), requiring that sensory information is retained and integrated over time. Hence, integration of sequential information is likely affected by memory. Particularly, when two sequentially explored stimuli are compared, integration of information on the second stimulus might be determined by the fading representation of the first stimulus. We investigated how the exploration length of the first stimulus and a temporal delay affect contributions of sequentially gathered estimates of the second stimulus in haptic softness discrimination...
February 20, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30762567/proprioceptive-localization-of-the-fingers-coarse-biased-and-context-sensitive
#15
Bharat Dandu, Irene Kuling, Yon Visell
The proprioceptive sense provides somatosensory information about positions of parts of the body, information that is essential for guiding behavior and monitoring the body. Few studies have investigated the perceptual localization of individual fingers, despite their importance for tactile exploration and fine manipulation. We present two experiments assessing the performance of proprioceptive localization of multiple fingers, either alone or in combination with visual cues. In the first experiment, we used a virtual reality paradigm to assess localization of multiple fingers...
February 14, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30736006/the-effect-of-applied-normal-force-on-the-electrovibration
#16
Xingwei Guo, Yuru Zhang, Dangxiao Wang, Lei Lu, Jian Jiao, Weiliang Xu
Electrovibration has become one of the promising approaches for adding tactile feedback on touchscreen. Previous studies revealed that the normal force applied on the touchscreen by the finger affects significantly the electrostatic force. It is obvious that the normal force affects the electrostatic force if it changes the contact area between the finger and the touchscreen. However, it is unclear whether the normal force affects the electrostatic force when the apparent contact area is constant. In this paper, we estimated the electrostatic force via measuring the tangential force of the finger sliding on a 3M touchscreen at different normal forces under the constant apparent contact area...
February 6, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30716050/creating-an-illusion-of-movement-between-the-hands-using-mid-air-touch
#17
Dario Pittera, Damien Ablart, Marianna Obrist
Apparent tactile motion (ATM) has been shown to occur across many contiguous parts of the body, such as fingers, forearms and the back. More recently, the illusion has also been elicited on non-contiguous part of the body, such as from one hand to the other when interconnected or not interconnected by an object in between the hands. Here we explore the reproducibility of the intermanual tactile illusion of movement between two free hands by employing mid-air tactile stimulation. We investigate the optimal parameters to generate a continuous and smooth motion using two arrays of ultrasound speakers, and two stimulation techniques (i...
February 4, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30716049/gaze-augmented-hand-based-kinesthetic-interaction-what-you-see-is-what-you-feel
#18
Zhenxing Li, Deepak Akkil, Roope Raisamo
Kinesthetic interaction between the user and the computer mainly utilizes the hand-based input with force-feedback devices. There are two major shortcomings in hand-based kinesthetic interaction: physical fatigue associated with continuous hand movements and the limited workspace of current force-feedback devices for accurately exploring a large environment. To address these shortcomings, we developed two interaction techniques that use eye gaze as an additional input modality: HandGazeTouch and GazeTouch. HandGazeTouch combines eye gaze and hand motion as the input for kinesthetic interaction, i...
February 1, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30703037/rendering-stiff-virtual-walls-using-model-matching-based-haptic-controller
#19
Indrajit Desai, Abhishek Gupta, Debraj Chakraborty
This paper presents a model matching framework for design of haptic controllers. The controller design problem is formulated as a sequence of H∞ optimization problems to achieve maximal transparency bandwidth. This enables automatic synthesis of robust controllers to achieve desired bandwidth while limiting actuator forces and guaranteeing stability. This method is applied to address the problem of accurate rendering of high stiffness virtual walls. Simulation of virtual walls of various stiffnesses are tested on PHANToM Premium 1...
January 25, 2019: IEEE Transactions on Haptics
https://read.qxmd.com/read/30676978/the-perception-of-ultrasonic-square-reductions-of-friction-with-variable-sharpness-and-duration
#20
David Gueorguiev, Eric Vezzoli, Thomas Sednaoui, Laurent Grisoni, Betty Lemaire-Semail
The human perception of square ultrasonic modulation of the finger-surface friction was investigated during active tactile exploration by using short frictional cues of varying duration and sharpness. In a first experiment, we asked participants to discriminate the transition time and duration of short square ultrasonic reductions of friction. They proved very sensitive to discriminate millisecond differences in these two parameters with the average psychophysical thresholds being 2.3-2.4 ms for both parameters...
January 22, 2019: IEEE Transactions on Haptics
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