Multimodal and Temporal Perception of Audio-visual Cues for Emotion Recognition

Abstract

In Audio-Video Emotion Recognition (AVER), the idea is to have a human-level understanding of emotions from video clips. There is a need to bring these two modalities into a unified framework, to effectively learn multimodal fusion for AVER. In addition, literature studies lack in-depth analysis and utilization of how emotions vary as a function of time. Psychological and neurological studies show that negative and positive emotions are not recognized at the same speed. In this paper, we propose a novel multimodal temporal deep network framework that embeds video clips using their audio-visual content, onto a metric space, where their gap is reduced and their complementary and supplementary information is explored. We address two research questions, (1) how audio-visual cues contribute to emotion recognition and (2) how temporal information impacts the recognition rate and speed of emotions. The proposed method is evaluated on two datasets, CREMA-D and RAVDESS. The study findings are promising, achieving the state-of-the-art performance on both datasets, and showing a significant impact of multimodal and temporal emotion perception.

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