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M2T2: Multi-Task Masked Transformer for Object-centric Pick and Place

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arxiv 2311.00926 v1 pith:TIBZGJE6 submitted 2023-11-02 cs.RO cs.AIcs.CV

classification cs.ROcs.AIcs.CV
keywords m2t2modelsobjectsactionlanguagelow-levelscenesachieves
verification ladder T0 review T1 audit T2 compute T3 formal

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With the advent of large language models and large-scale robotic datasets, there has been tremendous progress in high-level decision-making for object manipulation. These generic models are able to interpret complex tasks using language commands, but they often have difficulties generalizing to out-of-distribution objects due to the inability of low-level action primitives. In contrast, existing task-specific models excel in low-level manipulation of unknown objects, but only work for a single type of action. To bridge this gap, we present M2T2, a single model that supplies different types of low-level actions that work robustly on arbitrary objects in cluttered scenes. M2T2 is a transformer model which reasons about contact points and predicts valid gripper poses for different action modes given a raw point cloud of the scene. Trained on a large-scale synthetic dataset with 128K scenes, M2T2 achieves zero-shot sim2real transfer on the real robot, outperforming the baseline system with state-of-the-art task-specific models by about 19% in overall performance and 37.5% in challenging scenes where the object needs to be re-oriented for collision-free placement. M2T2 also achieves state-of-the-art results on a subset of language conditioned tasks in RLBench. Videos of robot experiments on unseen objects in both real world and simulation are available on our project website https://m2-t2.github.io.

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. GraspMolmo: Generalizable Task-Oriented Grasping via Large-Scale Synthetic Data Generation

    cs.RO 2025-05 conditional novelty 6.0 of 10

    A vision-language model fine-tuned on 379k synthetic task-grasp pairs predicts task-appropriate grasp points, improving real-world task-oriented grasping over previous methods.

  2. COMBO-Grasp: Learning Constraint-Based Manipulation for Bimanual Occluded Grasping

    cs.RO 2025-02 conditional novelty 6.0 of 10

    COMBO-Grasp trains a stabilizing constraint policy and an RL grasping policy, then refines the constraint pose with value-function gradients, improving bimanual grasping of occluded objects in simulation and real world.

  3. SAM2Act: Integrating Visual Foundation Model with A Memory Architecture for Robotic Manipulation

    cs.RO 2025-01 conditional novelty 6.0 of 10

    SAM2Act reports 86.8% average success across 18 RLBench tasks, and the memory variant SAM2Act+ reaches 94.3% on the new MemoryBench tasks.

  4. Lift3D Foundation Policy: Lifting 2D Large-Scale Pretrained Models for Robust 3D Robotic Manipulation

    cs.CV 2024-11 conditional novelty 6.0 of 10

    Lift3D uses task-aware depth reconstruction and mapped 2D positional embeddings to let pretrained 2D vision transformers act as 3D point-cloud manipulation policies, beating prior methods on average.

  5. CoA-VLA: Improving Vision-Language-Action Models via Visual-Textual Chain-of-Affordance

    cs.RO 2024-12 conditional novelty 5.0 of 10

    Adding a visual and textual chain-of-affordance reasoning step to a vision-language-action model improves robot manipulation success rates and generalization in the paper's evaluations.

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