Robust Feature Detection for Facial Expression Recognition

Spiros V. Ioannou · George Caridakis · Kostas C. Karpouzis · Stefanos Kollias

46 citations0/0 files storedEURASIP Journal on Image and Video Processing

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Emotion and Mood Recognition Face recognition and analysis Face and Expression Recognition

Abstract

This paper presents a robust and adaptable facial feature extraction system used for facial expression recognition in human-computer interaction (HCI) environments. Such environments are usually uncontrolled in terms of lighting and color quality, as well as human expressivity and movement; as a result, using a single feature extraction technique may fail in some parts of a video sequence, while performing well in others. The proposed system is based on a multicue feature extraction and fusion technique, which provides MPEG-4-compatible features assorted with a confidence measure. This confidence measure is used to pinpoint cases where detection of individual features may be wrong and reduce their contribution to the training phase or their importance in deducing the observed facial expression, while the fusion process ensures that the final result regarding the features will be based on the extraction technique that performed better given the particular lighting or color conditions. Real data and results are presented, involving both extreme and intermediate expression/emotional states, obtained within the sensitive artificial listener HCI environment that was generated in the framework of related European projects. Copyright (C) 2007 Spiros Ioannou et al.

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References

2017Communication Without Words 1989THE DICTIONARY OF AFFECT IN LANGUAGE 2000FEELTRACE: an instrument for recording perceived emotion in real time 2005Emotion recognition through facial expression analysis based on a neurofuzzy network 1998Facial Expression Recognition Using a Neural Network 2004Authentic facial expression analysis 1976Comparing the Joint Agreement of Several Raters with Another Rater 1992Automated coding of facial behavior in human-computer interactions with facs

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2011A Game-Based Corpus for Analysing the Interplay between Game Context and Player Experience 2011Automatic Facial Feature Extraction and Expression Recognition based on Neural Network 2012Human emotion and cognition recognition from body language of the head using soft computing techniques 2009Multimodal user’s affective state analysis in naturalistic interaction

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