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학술지 Improved Two-Phase Framework for Facial Emotion Recognition
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윤현진, 박상욱, 이용귀, 한미경, 장종현
ETRI Journal, v.37 no.6, pp.1199-1210
한국전자통신연구원 (ETRI)
13VC7900, 기능성 엔터테인먼트 서비스를 위한 다감각 실감미디어 체험시스템 개발, 장종현
Automatic emotion recognition based on facial cues, such as facial action units (AUs), has received huge attention in the last decade due to its wide variety of applications. Current computer-based automated twophase facial emotion recognition procedures first detect AUs from input images and then infer target emotions from the detected AUs. However, more robust AU detection and AU-to-emotion mapping methods are required to deal with the error accumulation problem inherent in the multiphase scheme. Motivated by our key observation that a single AU detector does not perform equally well for all AUs, we propose a novel two-phase facial emotion recognition framework, where the presence of AUs is detected by group decisions of multiple AU detectors and a target emotion is inferred from the combined AU detection decisions. Our emotion recognition framework consists of three major components 창?궗" multiple AU detection, AU detection fusion, and AU-to-emotion mapping. The experimental results on two real-world face databases demonstrate an improved performance over the previous two-phase method using a single AU detector in terms of both AU detection accuracy and correct emotion recognition rate.
Automatic emotion recognition, Decision fusion, Facial action unit detection, Facial expression analysis
KSP 제안 키워드
Action unit(AU), Computer-based, Decision Fusion, Detection accuracy, Error accumulation, Face databases, Facial Expression Analysis, Facial action unit detection, Facial action units(AUs), Facial emotion recognition, Group decisions