Gaze strategies during visually-guided and memory-guided grasping
نویسندگان
چکیده
منابع مشابه
Visually guided object grasping
{ In this paper we describe a method for aligning a robot gripper | or any other end eeector | with an object. An example of such a gripper/object alignment is grasping. The task consists of, rst computing an alignment condition, and second servoing the robot such that it moves and reaches the desired position. A single camera is used to provide the visual feedback necessary to estimate the loc...
متن کاملParieto-frontal connectivity during visually guided grasping.
Grasping an object requires processing visuospatial information about the extrinsic features (spatial location) and intrinsic features (size, shape, orientation) of the object. Accordingly, manual prehension has been subdivided into a reach component, guiding the hand toward the object on the basis of its extrinsic features, and a grasp component, preshaping the fingers around the center of mas...
متن کاملThe cortical control of visually guided grasping.
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. The complex apparatus of the human hand is used to reach for objects, grasp and lift them, manipulate them, and use them to act on other objects. This review examines what is known about the control o...
متن کاملVisually guided grasping in unstructured environments
We present simple and robust algorithms which use uncalibrated stereo vision to enable a robot manipulator to locate, reach and grasp unmodelled objects in unstructured environments. In the rst stage, an operator indicates the object to be grasped by simply pointing at it. Next, the vision system segments the indicated object from the background, and plans a suitable grasp strategy. Finally, th...
متن کاملGaze control for visually guided manipulation
Human studies have shown that gaze shifts are mostly driven by the task. In manipulation tasks, for example, gaze typically leads action to the next manipulation target. One explanation is that fixations gather information about task relevant properties, where task relevance is signalled by reward. This thesis pursues primarily an engineering science goal in order to determine what mechanisms a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Vision
سال: 2011
ISSN: 1534-7362
DOI: 10.1167/11.11.967