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arXiv 2602.23926cs.CV
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利用几何先验不确定性与互补约束实现高保真的神经室内表面重建

Leveraging Geometric Prior Uncertainty and Complementary Constraints for High-Fidelity Neural Indoor Surface Reconstruction

Department of Automation, Shanghai Jiao Tong University(自动化系,上海交通大学);Department of Mechanical and Automation Engineering and T Stone Robotics Institute, The Chinese University of Hong Kong(机械与自动化工程系及T Stone机器人研究所,香港中文大学)

Qiyu Feng, Jiwei Shan, Shing Shin Cheng, Hesheng Wang

AI总结:

GPU-SDF通过利用几何先验不确定性与互补约束,提升神经室内表面重建的细部特征恢复能力。

摘要:

神经隐式表面重建利用符号距离函数已取得显著进展,但恢复细部特征如薄结构和复杂几何仍具挑战性,因几何先验不可靠或存在噪声。现有方法依赖优化过程中出现的隐式不确定性来过滤这些先验,这间接且低效,且在高不确定性区域屏蔽监督进一步导致优化欠约束。为解决这些问题,我们提出GPU-SDF,一种用于室内表面重建的神经隐式框架,利用几何先验不确定性与互补约束。我们引入一个自监督模块,该模块无需辅助网络即可显式估计先验不确定性。基于此估计,我们设计了不确定性引导的损失,该损失调节先验影响而非丢弃它,从而保留弱但有信息的线索。为解决高先验不确定性的区域,GPU-SDF进一步结合两种互补约束:边缘距离场强化边界监督和多视角一致性正则化强制几何一致性。大量实验表明,GPU-SDF提高了细部特征的重建质量,并作为插件增强现有框架。源代码将在https://github.com/IRMVLab/GPU-SDF提供。

英文摘要:

Neural implicit surface reconstruction with signed distance function has made significant progress, but recovering fine details such as thin structures and complex geometries remains challenging due to unreliable or noisy geometric priors. Existing approaches rely on implicit uncertainty that arises during optimization to filter these priors, which is indirect and inefficient, and masking supervision in high-uncertainty regions further leads to under-constrained optimization. To address these issues, we propose GPU-SDF, a neural implicit framework for indoor surface reconstruction that leverages geometric prior uncertainty and complementary constraints. We introduce a self-supervised module that explicitly estimates prior uncertainty without auxiliary networks. Based on this estimation, we design an uncertainty-guided loss that modulates prior influence rather than discarding it, thereby retaining weak but informative cues. To address regions with high prior uncertainty, GPU-SDF further incorporates two complementary constraints: an edge distance field that strengthens boundary supervision and a multi-view consistency regularization that enforces geometric coherence. Extensive experiments confirm that GPU-SDF improves the reconstruction of fine details and serves as a plug-and-play enhancement for existing frameworks. Source code will be available at https://github.com/IRMVLab/GPU-SDF

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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