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Machine Learning Summer School 2006 - Taipei
Pascal

Facial expression recognition and emotion recognition from speech

author: Dragos Datcu, Delft University of Technology

Description

The presentation tackles the problem of recognizing the emotions based on video and audio data analysis. A fully automatic facial expression recognition system is based on three components: face detection, facial characteristic point extraction and classification. Face detection is employed by boosting simple rectangle Haar-like features that give a decent representation of the face. These features also allow the differentiation between a face and a non-face. The boosting algorithm is combined with an Evolutionary Search to speed up the overall search time. Facial characteristic points (FCP) are extracted from the detected faces. The same technique applied on faces is utilized for this purpose. Additionally, FCP extraction using corner detection methods and brightness distribution has also been considered. Finally, after retrieving the required FCPs the emotion of the facial expression can be determined.

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Slides
0:00 Using a sparse learning Relevance Vector Machine in Facial Expression Recognition
0:53 Introduction
4:08 Problem definition
5:39 Facial expression recognition system
5:44 I. Face detection
9:05 Viola&Jones features
10:33 The RVM-based weak classifier
11:00 Face detection
12:38 III. FCP model
14:06 III.1. FCP detection using corner detectors
14:43 III.2.a. The FCPs to be extracted with RVM based E.A.
classifier

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Reviews and comments:

Comment1 Dadhich amar nath, September 27, 2007 at 4:05 p.m.:

hello sir;
my self is Dadhich amar nath & persuing M.tech in "communication system & signal processing"(2006-08) from jiit noida, my final thesis is "hunam Identification system " in which we can try to recognize the face through speech
till I have recognized the face through Eigen face
now please tell me some idea what about speech
how u can help me
please
thank u


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