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Any4D: Unified Feed-Forward Metric 4D Reconstruction

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📝 Original Info

  • Title: Any4D: Unified Feed-Forward Metric 4D Reconstruction
  • ArXiv ID: 2512.10935
  • Date: 2025-12-11
  • Authors: Jay Karhade, Nikhil Keetha, Yuchen Zhang, Tanisha Gupta, Akash Sharma, Sebastian Scherer, Deva Ramanan

📝 Abstract

is a flexible feed-forward model capable of producing dense metric 4D reconstructions using N frames as input. Any4D is up to 15× faster and 3× better than prior state-of-the-art, where performance can be further boosted by using diverse sensors as input. Note that Any4D produces dense 3D tracking vectors, but here we visualize the sparse 3D motion tracks for simplicity.

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