arXiv:2603.20337cs.CV2026-03

通过编码像素覆盖范围,提升多视角法向一致性与细节还原精度。

High-fidelity Multi-view Normal Integration with Scale-encoded Neural Surface Representation

  • 引入尺度编码的神经表面表示,融合像素覆盖面积信息。
  • 在不同拍摄距离下均实现高保真表面重建,细节更清晰。
  • 适合需要高精度三维重建的应用,如逆向工程与数字孪生。

以往多视角法向整合方法通常每像素仅采样一条射线,未考虑像素覆盖的物理空间区域随相机内参和相机-物体距离变化的问题。因此,当目标物体在不同距离下拍摄时,对应像素的法向在各视角间存在差异,导致重建表面高频细节模糊。为此,本文提出一种尺度编码的神经表面表示,将像素覆盖面积纳入神经表示。通过为每个3D点关联空间尺度,并基于混合网格编码计算法向,有效表征不同距离下捕获的多尺度表面法向。此外,设计了一种尺度感知的网格提取模块,根据训练观测结果为每个顶点分配最优局部尺度。实验表明,该方法在不同拍摄距离下均能持续实现高保真表面重建,优于现有方法。

原文摘要 · Abstract (English)

Previous multi-view normal integration methods typically sample a single ray per pixel, without considering the spatial area covered by each pixel, which varies with camera intrinsics and the camera-to-object distance. Consequently, when the target object is captured at different distances, the normals at corresponding pixels may differ across views. This multi-view surface normal inconsistency results in the blurring of high-frequency details in the reconstructed surface. To address this issue, we propose a scale-encoded neural surface representation that incorporates the pixel coverage area into the neural representation. By associating each 3D point with a spatial scale and calculating its normal from a hybrid grid-based encoding, our method effectively represents multi-scale surface normals captured at varying distances. Furthermore, to enable scale-aware surface reconstruction, we introduce a mesh extraction module that assigns an optimal local scale to each vertex based on the training observations. Experimental results demonstrate that our approach consistently yields high-fidelity surface reconstruction from normals observed at varying distances, outperforming existing multi-view normal integration methods.

三维重建神经表示法向整合

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。