Cultural Self-Adaptive Multimodal Gesture Generation Based on Multiple Culture Gesture Dataset

Co-speech gesture generation is essential for multimodal chatbots and agents. Previous research extensively studies the relationship between text, audio, and gesture. Meanwhile, to enhance cross-culture communication, culture-specific gestures are crucial for chatbots to learn cultural differences and incorporate cultural cues. However, culture-specific gesture generation faces two challenges: lack of large-scale, high-quality gesture datasets that include diverse cultural groups, and lack of generalization across different cultures. Therefore, in this paper, we first introduce a Multiple Culture Gesture Dataset (MCGD), the largest freely available gesture dataset to date. It consists of ten different cultures, over 200 speakers, and 10,000 segmented sequences. We further propose a Cultural Self-adaptive Gesture Generation Network (CSGN) that takes multimodal relationships into consideration while generating gestures using a cascade architecture and learnable dynamic weight. The CSGN adaptively generates gestures with different cultural characteristics without the need to retrain a new network. It extracts cultural features from the multimodal inputs or a cultural style embedding space with a designated culture. We broadly evaluate our method across four large-scale benchmark datasets. Empirical results show that our method achieves multiple cultural gesture generation and improves comprehensiveness of multimodal inputs. Our method improves the state-of-the-art average FGD from 53.7 to 48.0 and culture deception rate (CDR) from 33.63% to 39.87%.