Paper Info
Title
Towards Social Robots: Automatic Evaluation of Human-robot Interaction by Face Detection and Expression Classification
Abstract
Computer animated agents and robots bring a social dimension to human computer interaction and force us to think in new ways about how computers could be used in daily life. Face to face communication is a real-time process operating at a time scale of less than a second. In this paper we present progress on a perceptual primitive to automatically detect frontal faces in the video stream and code them with respect to 7 dimensions in real time: neutral, anger, disgust, fear, joy, sadness, surprise. The face finder employs a cascade of feature detectors trained with boosting techniques [13, 2]. The expression recognizer employs a combination of AdaBoost and SVM's. The generalization performance to new subjects for a 7-way forced choice was over 90% correct on two publicly available datasets. The outputs of the classifier change smoothly as a function of time, providing a potentially valuable representation to code facial expression dynamics in a fully automatic and unobtrusive manner. The system was deployed and evaluated for measuring spontaneous facial expressions in the field in an application for automatic assessment of human-robot interaction.
Year
Venue
Keywords
2003
ADVANCES IN NEURAL INFORMATION PROCESSING SYSTEMS 16
support vector machine,computer animation,feature selection,human robot interaction,social robot,real time processing,real time,face detection,facial expression
Field
DocType
Volume
Social robot,Computer science,Artificial intelligence,Face detection,Classifier (linguistics),Human–robot interaction,Computer vision,AdaBoost,Speech recognition,Facial expression,Boosting (machine learning),Robot,Machine learning
Conference
16
ISSN
Citations 
PageRank 
1049-5258
26
2.24
References 
Authors
8
7
Name
Order
Citations
PageRank
gwen littlewort1115967.40
Marian Stewart Bartlett22026183.92
Ian R. Fasel365640.60
Joel Chenu4262.24
Takayuki Kanda53477326.97
Hiroshi Ishiguro64680513.13
Javier R. Movellan71853150.44