Aiming to overcome the serious disadvantages of two kinds of under-actuated fingers: coupled finger and self-adaptive finger, this paper proposed a novel grasping mode, called Coupled and Self-Adaptive (COSA) grasping mode, which includes 2 stages: firstly coupled and then self-adaptive grasping. A 2-joint COSA finger with double tendons mechanisms (called COSA-GRS finger), is designed based on...

Multi-touch and tangible input paradigms provide new opportunities for post-WIMP (Windows, Icons, Menus, Pointer) user interfaces. The development of such novel interfaces challenges designers and software developers alike. TUIO AS3 addresses these challenges by providing a toolkit for the rapid development of multi-touch and tangible user interface (TUI) interaction. The TUIO AS3 toolkit compr...

The paper investigates how multi-finger myoelectric signals could be used to control a virtual robotic prosthetic hand created by using robot operating system (ROS). Both off-line and online experiment phases are conducted by using ten electrodes and performing eight selected multi-finger motions on four healthy subjects. Classification accuracy and confusion matrix of eight time domain (TD)-fe...

The recent trends for house appliance devices are moving towards the natural interaction that ensures free-cumbering interaction with these human-made devices, we have presented herein our novel approach for features extraction template that enables such devices to interact in better way especially when gesturing to vision-based devices such as home TV, these vision-based devices preferred over...

We investigated the effect of 6 wk of strength training on maximal pressing (MVC) force, indexes of finger individuation (enslaving), and performance in accurate force production tests and in functional hand tests in healthy, physically fit, elderly individuals. Twelve participants (average age 76 yr) exercised with both hands. One of the hands exercised by pressing with the proximal phalanges ...

Fingers of the hand are interdependent: when a person moves one finger or produces a force with a fingertip, other fingers of the hand also move or show force production. Hence, no direct correspondence exists between the neural commands to individual fingers and finger forces. The relations among fingers are described with inter-finger connection matrices, IFM. The IFMs depend on the number of...

We propose Radial-Stroke and Finger-Count Shortcuts, two techniques aimed at augmenting the menubar on multitouch surfaces. We designed these multi-finger two-handed interaction techniques in an attempt to overcome the limitations of direct pointing on interactive surfaces, while maintaining compatibility with traditional interaction techniques. While Radial-Stroke Shortcuts exploit the wellkno...