DRMOT: A Dataset and Framework for RGBD Referring Multi-Object Tracking

• URL: http://arxiv.org/abs/2602.04692v2
• Date: Fri, 06 Feb 2026 04:39:34 GMT
• Title: DRMOT: A Dataset and Framework for RGBD Referring Multi-Object Tracking
• Authors: Sijia Chen, Lijuan Ma, Yanqiu Yu, En Yu, Liman Liu, Wenbing Tao,
• Abstract summary: Referring Multi-Object Tracking (RMOT) aims to track specific targets based on language descriptions.<n>We propose a novel task, RGBD Referring Multi-Object Tracking (DRMOT), which explicitly requires models to fuse RGB, Depth (D), and Language (L) modalities to achieve 3D-aware tracking.
• Score: 35.56361594180878
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Referring Multi-Object Tracking (RMOT) aims to track specific targets based on language descriptions and is vital for interactive AI systems such as robotics and autonomous driving. However, existing RMOT models rely solely on 2D RGB data, making it challenging to accurately detect and associate targets characterized by complex spatial semantics (e.g., ``the person closest to the camera'') and to maintain reliable identities under severe occlusion, due to the absence of explicit 3D spatial information. In this work, we propose a novel task, RGBD Referring Multi-Object Tracking (DRMOT), which explicitly requires models to fuse RGB, Depth (D), and Language (L) modalities to achieve 3D-aware tracking. To advance research on the DRMOT task, we construct a tailored RGBD referring multi-object tracking dataset, named DRSet, designed to evaluate models' spatial-semantic grounding and tracking capabilities. Specifically, DRSet contains RGB images and depth maps from 187 scenes, along with 240 language descriptions, among which 56 descriptions incorporate depth-related information. Furthermore, we propose DRTrack, a MLLM-guided depth-referring tracking framework. DRTrack performs depth-aware target grounding from joint RGB-D-L inputs and enforces robust trajectory association by incorporating depth cues. Extensive experiments on the DRSet dataset demonstrate the effectiveness of our framework.

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