计算机科学 ›› 2025, Vol. 52 ›› Issue (11A): 250100015-6.doi: 10.11896/jsjkx.250100015
李鹏飞1,2, 官先才1, 朱有建1, 李院瞧3, 王俊3
LI Pengfei1,2, GUAN Xiancai1, ZHU Youjian1, LI Yuanqiao3, WANG Jun3
摘要: 随着数字经济的快速发展,对三维重建技术的需求显著增加。然而,现有商用三维重建系统多依赖于封闭的单机或集群架构,导致灵活性和效率受限,而开源框架在绝对坐标和尺度恢复方面存在不足。对此,提出了一种基于GCP(Ground Control Point)辅助的Colmap框架中的SFM(Structure from Motion)算法。该算法通过构建残差方程、应用相似变换和全局光束法平差,将Colmap中SFM的自由网结果精确转换为绝对坐标。实验结果表明,该方法在计算精度上与商用系统Agisoft和大疆智图相当,且在尺度恢复上保持了较高的计算效率。所提方法不仅提升了开源三维重建系统的绝对尺度恢复能力,还为未来云端应用和大规模数据处理提供了理论和实践基础。未来将致力于实现全流程自动化三维重建的云架构,并探讨与物联网设备在三维监管中的应用前景。
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