AIBullisharXiv – CS AI · Mar 57/10
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Phys4D: Fine-Grained Physics-Consistent 4D Modeling from Video Diffusion
Researchers have developed Phys4D, a new pipeline that enhances video diffusion models with physics-consistent 4D world representations through a three-stage training process. The system addresses current limitations where AI-generated videos often exhibit physically implausible dynamics, using pseudo-supervised pretraining, physics-grounded fine-tuning, and reinforcement learning to improve spatiotemporal consistency.