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HiP3R: Consistent Long-Video 3D Reconstruction Goes Open Source
NTU's Change Loy group released HiP3R, a hierarchical pose-graph approach that brings consistency to thousand-frame long-video 3D reconstruction, and has since open-sourced the project.
2026-10-24 ~ 2026-10-26 · 2 episodes · 5 posts
Episode 1 · NTU's HiP3R Enables Consistent 3D Reconstruction for Long Videos (2026-10-24, 2 posts)
NTU researchers release HiP3R, a hierarchical pose graph approach that stitches local 3D reconstructions to keep long videos of thousands of frames globally consistent, cutting average ATE from 8.29m to 4.02m.
- HiP3R: hierarchical pose graphs cut long-horizon 3D reconstruction ATE from 8.3m to 4.0m — zhenjun_zhao · 2026-10-24
- HiP3R stitches local 3D reconstructions for consistent scenes across thousands of video frames — ccloy · 2026-10-25
Episode 2 · HiP3R Open-Sourced: Reconstructing Thousands-Frame Videos into Consistent 3D Scenes (2026-10-26, 3 posts)
HiP3R stitches local 3D reconstructions from thousands-frame videos into a single consistent scene via a two-level alignment scheme, requiring no extra training and supporting both chunk-based and streaming reconstruction methods.
- HiP3R stitches local 3D reconstructions to keep long-video scenes consistent across thousands of frames — ccloy · 2026-10-26
- HiP3R Stitches Long Video Into One Coherent 3D Scene Across Thousands of Frames — ccloy · 2026-10-26
- HiP3R's Two-Level Alignment Works Without Extra Training or Fine-Tuning — ccloy · 2026-10-26