arXiv:2502.13986eess.IV2025-02被引 1

用增量注册法高效还原混杂的陶器碎片,准确率达87%。

Structure-from-Sherds++: Robust Incremental 3D Reassembly of Axially Symmetric Pots from Unordered and Mixed Fragment Collections

  • 逐片迭代配准,结合多图束搜索提升鲁棒性
  • 在142片真实碎片上实现87%准确率,优于现有方法
  • 无需先验信息,适合复杂混杂碎片的文物复原

从碎片化陶器残片中重构多个轴对称陶器对文化遗产保护至关重要,但因断面薄而锐利,易产生大量误匹配,阻碍大规模拼合。现有全局优化或数据驱动方法易陷入局部最优,且在多件陶器混杂时面临可扩展性问题。受三维重建中结构从运动(SfM)启发,我们提出一种基于逐片增量注册的高效复原方法——Structure-from-Sherds++(SfS++)。该方法不仅延续增量SfM思想,更引入多图束搜索以探索多种配准路径,有效过滤难以区分的误匹配,并可同时重建多件陶器,无需基底或物体数量等先验信息。在包含10件不同陶器共142片真实碎片的数据集上,该方法达到87%的拼合准确率,在处理复杂断裂模式和混杂数据方面表现卓越,达到当前最优水平。代码与结果见项目页 https://sj-yoo.info/sfs/。

原文摘要 · Abstract (English)

Reassembling multiple axially symmetric pots from fragmentary sherds is crucial for cultural heritage preservation, yet it poses significant challenges due to thin and sharp fracture surfaces that generate numerous false positive matches and hinder large-scale puzzle solving. Existing global approaches, which optimize all potential fragment pairs simultaneously or data-driven models, are prone to local minima and face scalability issues when multiple pots are intermixed. Motivated by Structure-from-Motion (SfM) for 3D reconstruction from multiple images, we propose an efficient reassembly method for axially symmetric pots based on iterative registration of one sherd at a time, called Structure-from-Sherds++ (SfS++). Our method extends beyond simple replication of incremental SfM and leverages multi-graph beam search to explore multiple registration paths. This allows us to effectively filter out indistinguishable false matches and simultaneously reconstruct multiple pots without requiring prior information such as base or the number of mixed objects. Our approach achieves 87% reassembly accuracy on a dataset of 142 real fragments from 10 different pots, outperforming other methods in handling complex fracture patterns with mixed datasets and achieving state-of-the-art performance. Code and results can be found in our project page https://sj-yoo.info/sfs/.

文物复原3D重建碎片拼合增量方法

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