Role of active vision in optimizing visual feedback for robot control

2007 ◽  
pp. 24-40 ◽  
Author(s):  
Rajeev Sharma
Keyword(s):  
Visual Feedback ◽  
Robot Control ◽  
Active Vision

Role of the Visual Feedback for Stabilization of Vertical Human Posture during Induced Body Oscillations

Motor Control ◽  
1987 ◽  
pp. 129-134
Author(s):  
G. N. Gantchev ◽  
P. Gatev ◽  
N. Tankov ◽  
N. Draganova ◽  
S. Dunev ◽  
...  
Keyword(s):  
Visual Feedback ◽  
Human Posture

Visuomotor tracking with the lower extremity: the role of visual feedback in task performance

2008 ◽  
Vol 1 (3) ◽  
pp. 311
Author(s):  
S. Hotz-Boendermaker ◽  
J. Petersen ◽  
M. Laubacher ◽  
M.-C. Hepp-Reymond ◽  
M. Schubert
Keyword(s):  
Lower Extremity ◽  
Task Performance ◽  
Visual Feedback ◽  
Visuomotor Tracking

The Role of Online Visual Feedback for the Control of Target-Directed and Allocentric Hand Movements

2011 ◽  
Vol 105 (2) ◽  
pp. 846-859 ◽  
Author(s):  
Lore Thaler ◽  
Melvyn A. Goodale
Keyword(s):  
Visual Feedback ◽  
Visual Information ◽  
Sensory Feedback ◽  
Sensory Information ◽  
Movement Control ◽  
Sensorimotor Control ◽  
Hand Movements ◽  
Cast Doubt ◽  
Target Locations

Studies that have investigated how sensory feedback about the moving hand is used to control hand movements have relied on paradigms such as pointing or reaching that require subjects to acquire target locations. In the context of these target-directed tasks, it has been found repeatedly that the human sensory-motor system relies heavily on visual feedback to control the ongoing movement. This finding has been formalized within the framework of statistical optimality according to which different sources of sensory feedback are combined such as to minimize variance in sensory information during movement control. Importantly, however, many hand movements that people perform every day are not target-directed, but based on allocentric (object-centered) visual information. Examples of allocentric movements are gesture imitation, drawing, or copying. Here we tested if visual feedback about the moving hand is used in the same way to control target-directed and allocentric hand movements. The results show that visual feedback is used significantly more to reduce movement scatter in the target-directed as compared with the allocentric movement task. Furthermore, we found that differences in the use of visual feedback between target-directed and allocentric hand movements cannot be explained based on differences in uncertainty about the movement goal. We conclude that the role played by visual feedback for movement control is fundamentally different for target-directed and allocentric movements. The results suggest that current computational and neural models of sensorimotor control that are based entirely on data derived from target-directed paradigms have to be modified to accommodate performance in the allocentric tasks used in our experiments. As a consequence, the results cast doubt on the idea that models of sensorimotor control developed exclusively from data obtained in target-directed paradigms are also valid in the context of allocentric tasks, such as drawing, copying, or imitative gesturing, that characterize much of human behavior.

scholarly journals The Role of Visual Feedback on Power Output During Intermittent Wingate Testing in Ice Hockey Players

Sports ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 32 ◽  
Author(s):  
Petr Stastny ◽  
James Tufano ◽  
Jan Kregl ◽  
Miroslav Petr ◽  
Dusan Blazek ◽  
...  
Keyword(s):  
Visual Feedback ◽  
Power Output ◽  
Ice Hockey ◽  
Hockey Players

Visuele Terugkoppeling Van Engelse Intonatie;

1981 ◽  
Vol 9 ◽  
pp. 112-118
Author(s):  
Kees de Bot
Keyword(s):  
Second Language ◽  
Visual Feedback ◽  
Auditory Feedback ◽  
Future Research ◽  
Learning Behaviour ◽  
Feedback Mode ◽  
Practice Time

A description is given of an experiment in which we tried to show that visual feedback is more effective in intonation learning than auditory feedback. The factors in the experiment were feedback mode and practice time. The results showed a significant effect of visual feedback over auditory feedback, whereas amount of practice time doesn't seem to be a major factor. An analysis of learning behaviour of the subjects in the experiment revealed that feedback mode influences learning behaviour: subjects with visual feedback tend to practise more intensively than subjects with auditory feedback. Future research will concentrate on various factors related to intonation learning and the effectiveness of visual feedback, such as the role of age, mothertongue and degree of fluency in the second language.

Sign in / Sign up

Export Citation Format

Share Document