RSATalker: Realistic Socially-Aware Talking Head Generation for Multi-Turn Conversation

TL;DR

RSATalker is a novel framework that combines 3D Gaussian Splatting with social relationship encoding to generate realistic, socially-aware multi-turn talking head videos efficiently.

Contribution

It introduces the first socially-aware 3DGS-based talking head generation framework supporting multi-turn conversations and constructs a new dataset with social relationship annotations.

Findings

Achieves state-of-the-art realism in talking head generation

Effectively encodes social relationships into avatar videos

Supports multi-turn conversations with high fidelity

Abstract

Talking head generation is increasingly important in virtual reality (VR), especially for social scenarios involving multi-turn conversation. Existing approaches face notable limitations: mesh-based 3D methods can model dual-person dialogue but lack realistic textures, while large-model-based 2D methods produce natural appearances but incur prohibitive computational costs. Recently, 3D Gaussian Splatting (3DGS) based methods achieve efficient and realistic rendering but remain speaker-only and ignore social relationships. We introduce RSATalker, the first framework that leverages 3DGS for realistic and socially-aware talking head generation with support for multi-turn conversation. Our method first drives mesh-based 3D facial motion from speech, then binds 3D Gaussians to mesh facets to render high-fidelity 2D avatar videos. To capture interpersonal dynamics, we propose a socially-aware module that encodes social relationships, including blood and non-blood as well as equal and unequal, into high-level embeddings through a learnable query mechanism. We design a three-stage training paradigm and construct the RSATalker dataset with speech-mesh-image triplets annotated with social relationships. Extensive experiments demonstrate that RSATalker achieves state-of-the-art performance in both realism and social awareness. The code and dataset will be released.