Title: A Unified Framework for EEG–Video Emotion Recognition with Brain Anatomy Guidance
Primary area: applications to computer vision, audio, language, and other modalities
Keywords: Emotion Recognition, EEG-Video, Benchmark, Multi-modal Fusion, Graph Convolutional Network

Abstract: Recent studies in video- and EEG-based emotion recognition have shown notable progress. However, multi-modal emotion recognition remains largely unexplored, particularly the integration of physiological signals with video. This integration is crucial, as EEG–video fusion combines observable behavioral cues with internal neural dynamics and enables a more comprehensive and robust characterization of human emotion. To this end, we propose EVER, a novel EEG–Video Emotion Recognition framework that effectively integrates complementary information from both modalities. Specifically, EVER employs a Brain anatomy-aware Inter-modal Hierarchical Graph Convolution Network (BIH-GCN), which aggregates EEG channel features into region-level representations guided by anatomical priors. These region-level features are combined with global EEG and video embeddings to form a unified representation for emotion classification. Furthermore, we introduce a correlation-based distribution alignment loss to reconcile modality-specific embeddings and reduce cross-modal discrepancies. To provide a comprehensive evaluation, we conduct comprehensive benchmark across three public EEG-video paired datasets---Emognition, MDMER, and EAV. We evaluate 12 representative models, consisting of 5 EEG-only, 5 video-only, and 2 audio-video models, and report their performance under EEG, video, and EEG–video settings. Our benchmark highlights the strengths and limitations of both unimodal and multi-modal approaches across diverse environments. Extensive experiments demonstrate that the proposed EVER achieves state-of-the-art performance by jointly modeling behavioral cues from video and physiological responses from EEG, thereby enabling the recognition of emotional patterns unattainable by either modality alone.

TL;DR: We introduce a comprehensive benchmark and a novel EEG–video fusion framework that leverages brain anatomy-aware inter-modal hierarchical GCN for robust emotion recognition.