https://xuquant.com/tags/3d-reconstruction/Recent content in 3D-Reconstruction on Xu'Bloghttps://xuquant.com/og-default.pnghttps://xuquant.com/og-default.pngHugo -- 0.152.2zhSat, 21 Mar 2026 18:00:00 +0800https://xuquant.com/posts/foundation-models/sceneverse-plus-data-engine-for-3d-scene-understanding/Sat, 21 Mar 2026 18:00:00 +0800https://xuquant.com/posts/foundation-models/sceneverse-plus-data-engine-for-3d-scene-understanding/Deep analysis of CVPR 2026 SceneVerse++: how to build the largest-scale real-world 3D scene dataset from unlabeled internet videos, covering detection, segmentation, spatial VQA, and vision-language navigation.https://xuquant.com/posts/world-models/vggt/Sat, 21 Mar 2026 10:00:00 +0800https://xuquant.com/posts/world-models/vggt/VGGT 把多视图 3D 重建压缩为单次前向传播。本文重新核对 alternating attention 的复杂度推导、用 VGGT 论文 Table 3/5/6 的原始数字检验过完备预测策略，并从几何先验转移与表示哲学两个角度回答：为什么从深度与位姿组合出的点图反而比直接预测更准。https://xuquant.com/posts/world-models/depth-anything-3/Sat, 07 Feb 2026 10:00:00 +0800https://xuquant.com/posts/world-models/depth-anything-3/Depth Anything 3 unifies monocular depth, multi-view reconstruction, pose estimation, and novel view synthesis under a single depth-ray representation. This article analyzes why minimal representation matters for world models and what depth estimation reveals about the geometric foundations of physical understanding.