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Perpetual Humanoid Control for Real-time Simulated Avatars

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arxiv 2305.06456 v3 pith:CGIRG5KE submitted 2023-05-10 cs.CV cs.GRcs.RO

classification cs.CVcs.GRcs.RO
keywords motioncontrollercontrolwithoutavatarsfail-stateharderhumanoid
verification ladder T0 review T1 audit T2 compute T3 formal
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We present a physics-based humanoid controller that achieves high-fidelity motion imitation and fault-tolerant behavior in the presence of noisy input (e.g. pose estimates from video or generated from language) and unexpected falls. Our controller scales up to learning ten thousand motion clips without using any external stabilizing forces and learns to naturally recover from fail-state. Given reference motion, our controller can perpetually control simulated avatars without requiring resets. At its core, we propose the progressive multiplicative control policy (PMCP), which dynamically allocates new network capacity to learn harder and harder motion sequences. PMCP allows efficient scaling for learning from large-scale motion databases and adding new tasks, such as fail-state recovery, without catastrophic forgetting. We demonstrate the effectiveness of our controller by using it to imitate noisy poses from video-based pose estimators and language-based motion generators in a live and real-time multi-person avatar use case.

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Cited by 4 Pith papers

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

  1. Light-Loco-Parkour: Versatile Perceptive Whole-Body Locomotion via Multi-Skill Distillation

    cs.RO 2026-08 conditional novelty 7.0 of 10

    A single neural-network policy, trained in simulation, makes a humanoid climb, vault, and traverse uneven terrain from onboard depth and a velocity command, with no skill labels or runtime motion graphs.

  2. LooperMuscle: Fast and Stable Learning of Humanoid Whole-Body Tracking via Structured Mixture-of-Experts

    cs.RO 2026-08 conditional novelty 6.0 of 10

    LooperMuscle trains a humanoid whole-body tracking policy in about 45 minutes, cutting body error by 34% versus FastSAC and reaching 72% of PPO's reward, versus PPO's 6 hours.

  3. Generating Physically Realistic and Directable Human Motions from Multi-Modal Inputs

    cs.RO 2025-02 conditional novelty 6.0 of 10

    A single reinforcement-learned controller uses masked motion demonstrations to catch up, combine, and complete humanoid motions from sparse multi-modal directives.

  4. EMP: Executable Motion Prior for Humanoid Robot Standing Upper-body Motion Imitation

    cs.RO 2025-07 conditional novelty 5.0 of 10

    A state-conditioned executable motion prior network modifies upper-body motion targets so a humanoid can imitate human gestures while maintaining balance.

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