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arXiv · 2410.22306

Multi-Object 3D Grounding with Dynamic Modules and Language-Informed Spatial Attention

Haomeng Zhang·Chiao-An Yang·Raymond A. Yeh
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Abstract

Multi-object 3D Grounding involves locating 3D boxes based on a given query phrase from a point cloud. It is a challenging and significant task with numerous applications in visual understanding, human-computer interaction, and robotics. To tackle this challenge, we introduce D-LISA, a two-stage approach incorporating three innovations. First, a dynamic vision module that enables a variable and learnable number of box proposals. Second, a dynamic camera positioning that extracts features for each proposal. Third, a language-informed spatial attention module that better reasons over the proposals to output the final prediction. Empirically, experiments show that our method outperforms the state-of-the-art methods on multi-object 3D grounding by 12.8% (absolute) and is competitive in single-object 3D grounding.

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Haomeng Zhang, Chiao-An Yang, Raymond A. Yeh. 2024-10-29. Multi-Object 3D Grounding with Dynamic Modules and Language-Informed Spatial Attention. https://arxiv.org/abs/2410.22306

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