3D-LLaVA: Towards Generalist 3D LMMs with Omni Superpoint Transformer

• URL: http://arxiv.org/abs/2501.01163v2
• Date: Thu, 24 Apr 2025 06:33:35 GMT
• Title: 3D-LLaVA: Towards Generalist 3D LMMs with Omni Superpoint Transformer
• Authors: Jiajun Deng, Tianyu He, Li Jiang, Tianyu Wang, Feras Dayoub, Ian Reid,
• Abstract summary: We introduce 3D-LLaVA, a simple yet highly powerful 3D LMM designed to act as an intelligent assistant in comprehending, reasoning, and interacting with the 3D world.<n>At the core of 3D-LLaVA is a new Omni Superpoint Transformer (OST), which integrates three functionalities.
• Score: 33.42183318484381
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Current 3D Large Multimodal Models (3D LMMs) have shown tremendous potential in 3D-vision-based dialogue and reasoning. However, how to further enhance 3D LMMs to achieve fine-grained scene understanding and facilitate flexible human-agent interaction remains a challenging problem. In this work, we introduce 3D-LLaVA, a simple yet highly powerful 3D LMM designed to act as an intelligent assistant in comprehending, reasoning, and interacting with the 3D world. Unlike existing top-performing methods that rely on complicated pipelines-such as offline multi-view feature extraction or additional task-specific heads-3D-LLaVA adopts a minimalist design with integrated architecture and only takes point clouds as input. At the core of 3D-LLaVA is a new Omni Superpoint Transformer (OST), which integrates three functionalities: (1) a visual feature selector that converts and selects visual tokens, (2) a visual prompt encoder that embeds interactive visual prompts into the visual token space, and (3) a referring mask decoder that produces 3D masks based on text description. This versatile OST is empowered by the hybrid pretraining to obtain perception priors and leveraged as the visual connector that bridges the 3D data to the LLM. After performing unified instruction tuning, our 3D-LLaVA reports impressive results on various benchmarks.

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