Results 221 to 230 of about 54,215 (268)
Some of the next articles are maybe not open access.
Grasping the dice by dicing the grasp
Proceedings 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2003) (Cat. No.03CH37453), 2004Many methods for generating and analyzing grasps have been developed in the recent years. They gave insight and comprehension of grasping with robot hands but many of them are rather complicated to implement and of high computational complexity.
Borst, C., Fischer, M., Hirzinger, G.
openaire +3 more sources
The International Journal of Robotics Research, 2010
This paper introduces a principle to guide the design of finger form: invariance of contact geometry over some continuum of varying shape and/or pose of the grasped object in the plane. Specific applications of this principle include scale-invariant and pose-invariant grasps. Under specific conditions, the principle gives rise to spiral shaped fingers,
Alberto Rodriguez 0003, Matthew T. Mason
openaire +2 more sources
This paper introduces a principle to guide the design of finger form: invariance of contact geometry over some continuum of varying shape and/or pose of the grasped object in the plane. Specific applications of this principle include scale-invariant and pose-invariant grasps. Under specific conditions, the principle gives rise to spiral shaped fingers,
Alberto Rodriguez 0003, Matthew T. Mason
openaire +2 more sources
Knot grasping, folding, and re-grasping
The International Journal of Robotics Research, 2018This paper analyzes the physical resources necessary and sufficient to tie a knot of given structure. We present the first sufficient bound on the number of fingers required to tie a given knot; the bound is linear in the number of crossings appearing in the knot diagram for a given knot. We also present a lower bound on the required number of fingers,
Weifu Wang 0001, Devin J. Balkcom
openaire +2 more sources
The GRASP Taxonomy of Human Grasp Types
IEEE Transactions on Human-Machine Systems, 2016In this paper, we analyze and compare existing human grasp taxonomies and synthesize them into a single new taxonomy (dubbed “The GRASP Taxonomy” after the GRASP project funded by the European Commission). We consider only static and stable grasps performed by one hand.
Thomas Feix +4 more
openaire +3 more sources
Neurological Research, 2002
In recent years a number of neuroprostheses have been developed and used to assist stroke and spinal cord injured subjects to restore or improve grasping function. These neuroprostheses clearly demonstrated that the targeted group of subjects can significantly benefit from this technology and that functional electrical stimulation (FES) is a viable ...
Milos R, Popovic +2 more
openaire +2 more sources
In recent years a number of neuroprostheses have been developed and used to assist stroke and spinal cord injured subjects to restore or improve grasping function. These neuroprostheses clearly demonstrated that the targeted group of subjects can significantly benefit from this technology and that functional electrical stimulation (FES) is a viable ...
Milos R, Popovic +2 more
openaire +2 more sources
Proceedings. 1984 IEEE International Conference on Robotics and Automation, 2005
This paper specifies constraints based on the geometry of the grasped object, on geometry of the hand and the kinematics of the constrained object which determine how to grasp an object.
Ruzena Bajcsy +2 more
openaire +2 more sources
This paper specifies constraints based on the geometry of the grasped object, on geometry of the hand and the kinematics of the constrained object which determine how to grasp an object.
Ruzena Bajcsy +2 more
openaire +2 more sources
Nature Reviews Neuroscience, 2005
People have always been fascinated by the exquisite precision and flexibility of the human hand. When hand meets object, we confront the overlapping worlds of sensorimotor and cognitive functions. We reach for objects, grasp and lift them, manipulate them and use them to act on other objects. This review examines one of these actions--grasping.
openaire +3 more sources
People have always been fascinated by the exquisite precision and flexibility of the human hand. When hand meets object, we confront the overlapping worlds of sensorimotor and cognitive functions. We reach for objects, grasp and lift them, manipulate them and use them to act on other objects. This review examines one of these actions--grasping.
openaire +3 more sources
Neuropsychologia, 1997
In the present study we attempted to determine the nature of the visual analysis that is performed on an object in order to grasp it. We required eight healthy subjects to reach and grasp a wooden bar which was superimposed over the shaft of the Müller-Lyer illusion. Vision of both the hand and the bar was allowed. Three different bar lengths were used.
DAPRATI E., GENTILUCCI, Maurizio
openaire +5 more sources
In the present study we attempted to determine the nature of the visual analysis that is performed on an object in order to grasp it. We required eight healthy subjects to reach and grasp a wooden bar which was superimposed over the shaft of the Müller-Lyer illusion. Vision of both the hand and the bar was allowed. Three different bar lengths were used.
DAPRATI E., GENTILUCCI, Maurizio
openaire +5 more sources
2009
When hand meets object, we confront the overlapping worlds of sensorimotor and cognitive functions. We reach for objects, grasp and lift them, manipulate them, and use them to act on other objects. Prehension under visual guidance entails two motor processes: ‘reaching’ and ‘grasping.’ Reaching refers to the extension of the arm to touch a distant ...
CASTIELLO, UMBERTO +1 more
openaire +1 more source
When hand meets object, we confront the overlapping worlds of sensorimotor and cognitive functions. We reach for objects, grasp and lift them, manipulate them, and use them to act on other objects. Prehension under visual guidance entails two motor processes: ‘reaching’ and ‘grasping.’ Reaching refers to the extension of the arm to touch a distant ...
CASTIELLO, UMBERTO +1 more
openaire +1 more source
Experimental Brain Research, 2008
Both theoretical and empirical studies suggest that numerical processing is intimately linked to representations of goal-directed hand actions. Further evidence for this possibility is provided here by the results of two experiments, both of which revealed a powerful influence of numerical magnitude on the selection of hand grasping movements.
MORETTO, GIOVANNA +1 more
openaire +2 more sources
Both theoretical and empirical studies suggest that numerical processing is intimately linked to representations of goal-directed hand actions. Further evidence for this possibility is provided here by the results of two experiments, both of which revealed a powerful influence of numerical magnitude on the selection of hand grasping movements.
MORETTO, GIOVANNA +1 more
openaire +2 more sources