OCCDiff: Occupancy Diffusion Model for High-Fidelity 3D Building Reconstruction from Noisy Point Clouds

arXiv — cs.CVWednesday, December 10, 2025 at 5:00:00 AM
  • The OCCDiff model has been introduced as a novel approach to reconstructing 3D building structures from noisy LiDAR point clouds, utilizing latent diffusion in the occupancy function space to enhance the accuracy and quality of the generated 3D profiles. This model incorporates a point encoder and a function autoencoder architecture to facilitate continuous occupancy function generation at various resolutions.
  • This development is significant as it addresses the challenges of capturing building surfaces under varying point densities and noise interference, which are critical for applications in urban planning, architecture, and autonomous navigation. By improving the fidelity of 3D reconstructions, OCCDiff can enhance the effectiveness of systems relying on accurate spatial representations.
  • The introduction of OCCDiff aligns with ongoing advancements in 3D modeling and point cloud processing, reflecting a broader trend towards integrating machine learning techniques, such as latent diffusion and multi-task training strategies, to improve the robustness of 3D data interpretation. This evolution is crucial as industries increasingly rely on high-fidelity 3D representations for applications ranging from autonomous driving to robotics and urban development.
— via World Pulse Now AI Editorial System

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