Results 31 to 40 of about 291,095 (291)

Five-Fingered Passive Force Feedback Glove Using a Variable Ratio Lever Mechanism

open access: yesActuators, 2021
Force feedback gloves allow users to touch and manipulate virtual objects intuitively. Compared with gloves providing active feedback force, gloves with passive feedback force are promising in terms of safety and low weight, but simulating the variable ...
Yuan Guo   +5 more
doaj   +1 more source

Grasp [PDF]

open access: yes, 2021
<p>A screenplay.</p>
openaire   +1 more source

Birds land reliably on complex surfaces by adapting their foot-surface interactions upon contact

open access: yeseLife, 2019
Birds land on a wide range of complex surfaces, yet it is unclear how they grasp a perch reliably. Here, we show how Pacific parrotlets exhibit stereotyped leg and wing dynamics regardless of perch diameter and texture, but foot, toe, and claw kinematics
William RT Roderick   +3 more
doaj   +1 more source

Grasping Weber’s Law in a Virtual Environment: The Effect of Haptic Feedback

open access: yesFrontiers in Psychology, 2020
Recent findings suggest that the functional separation between vision-for-action and vision-for-perception does not generalize to situations in which virtual objects are used as targets. For instance, unlike actions toward real objects that violate Weber’
Aviad Ozana   +5 more
doaj   +1 more source

Design, Kinematics and Workspace Analysis of a Novel 4-DOF Kinematically Redundant Planar Parallel Grasping Manipulator

open access: yesMachines, 2023
This article presents a model of a novel 4-DOF kinematically redundant planar parallel grasping manipulator. As distinct from the traditional 4-DOF manipulator, the proposed design includes an extensible platform, which provides kinematic redundancy ...
Daniil Petelin   +5 more
doaj   +1 more source

A new view on grasping [PDF]

open access: yes, 1999
Reaching out for an object is often described as consisting of two components that are based on different visual information. Information about the object’s position and orientation guides the hand to the object, while information about the object’s ...
Brenner, Eli, Smeets, Jeroen B.J.
core   +1 more source

Learning Grasp Affordance Densities

open access: yesPaladyn, 2011
We address the issue of learning and representing object grasp affordance models. We model grasp affordances with continuous probability density functions (grasp densities) which link object-relative grasp poses to their success probability.
Detry R.   +6 more
doaj   +1 more source

The hand grasps the centre, while the eyes saccade to the top of novel objects

open access: yesFrontiers in Psychology, 2015
In the present study, we investigated whether indenting the sides of novel objects (e.g., product packaging) would influence where people grasp, and hence focus their gaze, under the assumption that gaze precedes grasping.
Georgiana eJuravle   +4 more
doaj   +1 more source

Holding a handle for balance during continuous postural perturbations – immediate and transitionary effects on whole body posture

open access: yesFrontiers in Human Neuroscience, 2016
When balance is exposed to perturbations, hand contacts are often used to assist postural control. We investigated the immediate and the transitionary effects of supportive hand contacts during continuous anteroposterior perturbations of stance by ...
Jernej Camernik   +5 more
doaj   +1 more source

Simulative Evaluation of a Joint-Cartesian Hybrid Motion Mapping for Robot Hands Based on Spatial In-Hand Information

open access: yesFrontiers in Robotics and AI, 2022
Two sub-problems are typically identified for the replication of human finger motions on artificial hands: the measurement of the motions on the human side and the mapping method of human hand movements (primary hand) on the robotic hand (target hand ...
Roberto Meattini   +3 more
doaj   +1 more source

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