4D-RGPT: Toward Region-level 4D Understanding via Perceptual Distillation

arXiv — cs.CVTuesday, December 23, 2025 at 5:00:00 AM
  • The introduction of 4D-RGPT marks a significant advancement in the field of Multimodal Large Language Models (MLLMs), addressing the limitations in reasoning over 3D structures and temporal dynamics. This model utilizes a training framework called Perceptual 4D Distillation (P4D) to enhance its 4D perception capabilities, alongside the creation of R4D-Bench, a benchmark for evaluating depth-aware dynamic scenes with region-level prompting.
  • This development is crucial as it enhances the ability of MLLMs to process and understand complex video inputs, which is essential for applications in various domains such as robotics, autonomous systems, and interactive media. By improving 4D perception, 4D-RGPT aims to bridge the gap in existing benchmarks that primarily focus on static scenes.
  • The advancement of 4D-RGPT aligns with ongoing efforts in the AI community to enhance spatial and temporal reasoning in MLLMs. Similar initiatives, such as SpatialGeo and ViRectify, also seek to improve the reasoning capabilities of these models, highlighting a broader trend towards integrating geometry, semantics, and temporal understanding in AI systems. This reflects a growing recognition of the need for more sophisticated models that can handle dynamic and complex environments.
— via World Pulse Now AI Editorial System

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