See&Trek: Training-Free Spatial Prompting for Multimodal Large Language Model

Fuente: arXiv
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Hauptverfasser: Li, Pengteng, Song, Pinhao, Li, Wuyang, Guo, Weiyu, Yao, Huizai, Xu, Yijie, Liu, Dugang, Xiong, Hui
Format: Preprint
Veröffentlicht: 2025
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author Li, Pengteng
Song, Pinhao
Li, Wuyang
Guo, Weiyu
Yao, Huizai
Xu, Yijie
Liu, Dugang
Xiong, Hui
author_facet Li, Pengteng
Song, Pinhao
Li, Wuyang
Guo, Weiyu
Yao, Huizai
Xu, Yijie
Liu, Dugang
Xiong, Hui
contents We introduce SEE&TREK, the first training-free prompting framework tailored to enhance the spatial understanding of Multimodal Large Language Models (MLLMS) under vision-only constraints. While prior efforts have incorporated modalities like depth or point clouds to improve spatial reasoning, purely visualspatial understanding remains underexplored. SEE&TREK addresses this gap by focusing on two core principles: increasing visual diversity and motion reconstruction. For visual diversity, we conduct Maximum Semantic Richness Sampling, which employs an off-the-shell perception model to extract semantically rich keyframes that capture scene structure. For motion reconstruction, we simulate visual trajectories and encode relative spatial positions into keyframes to preserve both spatial relations and temporal coherence. Our method is training&GPU-free, requiring only a single forward pass, and can be seamlessly integrated into existing MLLM'S. Extensive experiments on the VSI-B ENCH and STI-B ENCH show that S EE &T REK consistently boosts various MLLM S performance across diverse spatial reasoning tasks with the most +3.5% improvement, offering a promising path toward stronger spatial intelligence.
format Preprint
id arxiv_https___arxiv_org_abs_2509_16087
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle See&Trek: Training-Free Spatial Prompting for Multimodal Large Language Model
Li, Pengteng
Song, Pinhao
Li, Wuyang
Guo, Weiyu
Yao, Huizai
Xu, Yijie
Liu, Dugang
Xiong, Hui
Computer Vision and Pattern Recognition
Artificial Intelligence
We introduce SEE&TREK, the first training-free prompting framework tailored to enhance the spatial understanding of Multimodal Large Language Models (MLLMS) under vision-only constraints. While prior efforts have incorporated modalities like depth or point clouds to improve spatial reasoning, purely visualspatial understanding remains underexplored. SEE&TREK addresses this gap by focusing on two core principles: increasing visual diversity and motion reconstruction. For visual diversity, we conduct Maximum Semantic Richness Sampling, which employs an off-the-shell perception model to extract semantically rich keyframes that capture scene structure. For motion reconstruction, we simulate visual trajectories and encode relative spatial positions into keyframes to preserve both spatial relations and temporal coherence. Our method is training&GPU-free, requiring only a single forward pass, and can be seamlessly integrated into existing MLLM'S. Extensive experiments on the VSI-B ENCH and STI-B ENCH show that S EE &T REK consistently boosts various MLLM S performance across diverse spatial reasoning tasks with the most +3.5% improvement, offering a promising path toward stronger spatial intelligence.
title See&Trek: Training-Free Spatial Prompting for Multimodal Large Language Model
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2509.16087