arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1907.04096cs.CV
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交互式摄像机标定中的有效位姿选择

Efficient Pose Selection for Interactive Camera Calibration

Fraunhofer IGD(弗劳恩霍夫计算机图形学研究所);TU Darmstadt(达姆施塔特工业大学)

Pavel Rojtberg, Arjan Kuijper

摘要:

相机标定与平面图案的姿势的选择很少被考虑-但校准精度在很大程度上取决于它。这项工作提出了一种姿势选择方法,找到一个紧凑和强大的一组校准姿势,适合于交互式校准。因此,明确避免了会导致不可靠解的奇异姿态,而有利于降低校准不确定性的姿态。为此,我们使用不确定性传播。我们的方法利用一个自我识别的校准模式,实时跟踪相机姿态。这允许迭代地将用户引导到目标姿势,直到达到期望的质量水平。因此,仅需要稀疏的关键帧集合用于校准。该方法在单独的训练集和测试集以及合成数据上进行评估。我们的方法比同类解决方案性能更好,同时需要的校准帧减少30%。

英文摘要:

The choice of poses for camera calibration with planar patterns is only rarely considered - yet the calibration precision heavily depends on it. This work presents a pose selection method that finds a compact and robust set of calibration poses and is suitable for interactive calibration. Consequently, singular poses that would lead to an unreliable solution are avoided explicitly, while poses reducing the uncertainty of the calibration are favoured. For this, we use uncertainty propagation. Our method takes advantage of a self-identifying calibration pattern to track the camera pose in real-time. This allows to iteratively guide the user to the target poses, until the desired quality level is reached. Therefore, only a sparse set of key-frames is needed for calibration. The method is evaluated on separate training and testing sets, as well as on synthetic data. Our approach performs better than comparable solutions while requiring 30% less calibration frames.

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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