Title
A Probabilistic Framework to Detect Suitable Grasping Regions on Objects.
Abstract
This work relies on a probabilistic framework to search for suitable grasping regions on objects. In this approach, the object model is acquired based on occupancy grid representation that deals with the sensor uncertainty allowing later the decomposition of the object global shape into components. Through mixture distribution-based representation we achieve the object segmentation where the outputs are the point cloud clustering. Each object component is matched to a geometrical primitive. The advantage of representing object components into geometrical primitives is due to the simplification and approximation of the shape that facilitates the search for suitable object region for grasping given a context. Human demonstrations of predefined grasp are recorded and then overlaid on the object surface given by the probabilistic volumetric map to find the contact points of stable grasps. By observing the human choice during the object grasping, we perform the learning phase. Bayesian theory is used to identify a potential object region for grasping in a specific context when the artificial system faces a new object that is taken as a familiar object due to the primitives approximation into known components.
Year
DOI
Venue
2012
10.3182/20120905-3-HR-2030.00090
IFAC Proceedings Volumes
Keywords
Field
DocType
Human demonstration,object representation,probabilistic framework,grasping
Deep-sky object,Object-oriented design,Computer vision,GRASP,Pattern recognition,Method,Object model,Artificial intelligence,Probabilistic logic,Point cloud,Mathematics,Occupancy grid mapping
Conference
Volume
Issue
ISSN
45
22
1474-6670
Citations 
PageRank 
References 
2
0.42
11
Authors
4
Name
Order
Citations
PageRank
Diego R. Faria19514.96
Ricardo Martins272.34
Jorge Lobo333831.84
Jorge Dias442.82