Title
A Face Attention Technique for a Robot Able to Interpret Facial Expressions
Abstract
Automatic facial expressions recognition using vision is an important subject towards human-robot interaction. Here is proposed a human face focus of attention technique and a facial expressions classifier (a Dynamic Bayesian Network) to incorporate in an autonomous mobile agent whose hardware is composed by a robotic platform and a robotic head. The focus of attention technique is based on the symmetry presented by human faces. By using the output of this module the autonomous agent keeps always targeting the human face frontally. In order to accomplish this, the robot platform performs an arc centered at the human; thus the robotic head, when necessary, moves synchronized. In the proposed probabilistic classifier the information is propagated, from the previous instant, in a lower level of the network, to the current instant. Moreover, to recognize facial expressions are used not only positive evidences but also negative.
Year
DOI
Venue
2010
10.1007/978-3-642-11628-5_36
IFIP Advances in Information and Communication Technology
Keywords
Field
DocType
Facial Symmetry,Focus of Attention,Dynamic Bayesian Network
Computer vision,Autonomous agent,Mobile agent,Facial symmetry,Facial expression,Artificial intelligence,Engineering,Robot,Probabilistic classification,Classifier (linguistics),Dynamic Bayesian network
Conference
Volume
ISSN
Citations 
314
1868-4238
0
PageRank 
References 
Authors
0.34
6
3
Name
Order
Citations
PageRank
Carlos Simplício1121.35
José Augusto Prado2386.81
Jorge Dias355651.00