Unifying 3D Vision-Language Understanding via Promptable Queries

• URL: http://arxiv.org/abs/2405.11442v2
• Date: Wed, 24 Jul 2024 07:31:37 GMT
• Title: Unifying 3D Vision-Language Understanding via Promptable Queries
• Authors: Ziyu Zhu, Zhuofan Zhang, Xiaojian Ma, Xuesong Niu, Yixin Chen, Baoxiong Jia, Zhidong Deng, Siyuan Huang, Qing Li,
• Abstract summary: unified model for 3D vision-language (3D-VL) understanding. PQ3D is capable of using Promptable Queries to tackle a wide range of 3D-VL tasks. Tested across ten diverse 3D-VL datasets, PQ3D demonstrates impressive performance on these tasks.
• Score: 39.55438547712157
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A unified model for 3D vision-language (3D-VL) understanding is expected to take various scene representations and perform a wide range of tasks in a 3D scene. However, a considerable gap exists between existing methods and such a unified model, due to the independent application of representation and insufficient exploration of 3D multi-task training. In this paper, we introduce PQ3D, a unified model capable of using Promptable Queries to tackle a wide range of 3D-VL tasks, from low-level instance segmentation to high-level reasoning and planning. This is achieved through three key innovations: (1) unifying various 3D scene representations (i.e., voxels, point clouds, multi-view images) into a shared 3D coordinate space by segment-level grouping, (2) an attention-based query decoder for task-specific information retrieval guided by prompts, and (3) universal output heads for different tasks to support multi-task training. Tested across ten diverse 3D-VL datasets, PQ3D demonstrates impressive performance on these tasks, setting new records on most benchmarks. Particularly, PQ3D improves the state-of-the-art on ScanNet200 by 4.9% (AP25), ScanRefer by 5.4% (acc@0.5), Multi3DRefer by 11.7% (F1@0.5), and Scan2Cap by 13.4% (CIDEr@0.5). Moreover, PQ3D supports flexible inference with individual or combined forms of available 3D representations, e.g., solely voxel input.

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