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- 2016
倾斜影像自动空三及其在城市真三维模型重建中的应用
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Abstract:
在一种具有视点不变性的改进的倾斜影像自动匹配方法的基础上,针对多视倾斜影像光束法平差方法中未知参数多的问题(例如可能导致平差解算不稳定),提出了带有相对姿态参数的倾斜影像光束法平差模型,并给出了该模型的适用范围。对一套典型的数字倾斜摄影仪SWDC-5的倾斜影像数据进行实验,结果表明:当相机之间曝光延迟小,且相对姿态参数可以看作比较严格的刚体时,该方法的自动空中三角测量(简称空三)处理精度较高,单位权中误差为0.46像素,像点平均残差为0.27像素。将该空三成果应用到城市真三维模型重建中,计算机自动得到的三维表面模型纹理比较自然、真实,能够满足一定程度的视觉需求,为大规模城市真三维模型重建提供了参考
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