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MotionLLM: Understanding Human Behaviors from Human Motions and Videos by Chen, Ling-Hao; Lu, Shunlin; Zeng, Ailing; Zhang, Hao; Wang, Benyou; Zhang, Ruimao; Zhang, Lei is a scholarly article available to read on EtoBox.

What is MotionLLM: Understanding Human Behaviors from Human Motions and Videos about?

This study delves into the realm of multi-modality (i.e., video and motion modalities) human behavior understanding by leveraging the powerful capabilities of Large Language Models (LLMs). Diverging from recent LLMs designed for video-only or motion-only understanding, we argue that understanding human behavior necessitates joint modeling from both videos and motion sequences (e.g., SMPL sequences) to capture nuanced body part dynamics and semantics effectively. In light of this, we present MotionLLM, a straightforward yet effective framework for human motion understanding, captioning, and reasoning. Specifically, MotionLLM adopts a unified video-motion training strategy that leverages the complementary advantages of existing coarse video-text data and fine-grained motion-text data to glean rich spatial-temporal insights. Furthermore, we collect a substantial dataset, MoVid, comprising diverse videos, motions, captions, and instructions. Additionally, we propose the MoVid-Bench, with carefully manual annotations, for better evaluation of human behavior understanding on video and motion. Extensive experiments show the superiority of MotionLLM in the caption, spatial-temporal compreh

Author

Chen, Ling-Hao; Lu, Shunlin; Zeng, Ailing; Zhang, Hao; Wang, Benyou; Zhang, Ruimao; Zhang, Lei

Published

2024

Language

EN