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Camera self-calibration with varying intrinsic parameters by an unknown three-dimensional scene

机译:通过未知的三维场景使用可变的固有参数进行相机自校准

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摘要

This work proposes a method of camera self-calibration having varying intrinsic parameters from a sequence of images of an unknown 3D object. The projection of two points of the 3D scene in the image planes is used with fundamental matrices to determine the projection matrices. The present approach is based on the formulation of a nonlinear cost function from the determination of a relationship between two points of the scene and their projections in the image planes. The resolution of this function enables us to estimate the intrinsic parameters of different cameras. The strong point of the present approach is clearly seen in the minimization of the three constraints of a self-calibration system (a pair of images, 3D scene, any camera): The use of a single pair of images provides fewer equations, which minimizes the execution time of the program, the use of a 3D scene reduces the planarity constraints, and the use of any camera eliminates the constraints of cameras having constant parameters. The experiment results on synthetic and real data are presented to demonstrate the performance of the present approach in terms of accuracy, simplicity, stability, and convergence.
机译:这项工作提出了一种相机自校准方法,该方法具有自未知3D对象的图像序列变化的固有参数。 3D场景在图像平面中两点的投影与基本矩阵一起使用,以确定投影矩阵。本方法基于从确定场景的两个点与其在图像平面中的投影之间的关系的非线性成本函数的公式化。该功能的分辨率使我们能够估计不同摄像机的固有参数。通过最小化自校准系统(一对图像,3D场景,任何摄像机)的三个约束,可以清楚地看到本方法的优点:使用一对图像可减少方程式,从而最大程度地减少在程序的执行时间,3D场景的使用减少了平面度约束,并且任何相机的使用都消除了具有恒定参数的相机的约束。提出了关于合成和真实数据的实验结果,以证明本方法在准确性,简单性,稳定性和收敛性方面的性能。

著录项

  • 来源
    《The Visual Computer》 |2014年第5期|519-530|共12页
  • 作者单位

    LIIAN, Department of Mathematics and Computer Science, Faculty of Science, Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, B.P. 1796, Atlas, Fez, Morocco;

    LIIAN, Department of Mathematics and Computer Science, Faculty of Science, Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, B.P. 1796, Atlas, Fez, Morocco;

    LIMAO, Department of Mathematics, Physics and Computer Science, Polydisciplinary Faculty of Taza, Sidi Mohamed Ben Abdellah University, B.P. 1223, Taza, Morocco;

    LIIAN, Department of Mathematics and Computer Science, Faculty of Science, Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, B.P. 1796, Atlas, Fez, Morocco;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Control points; Fundamental matrix; Self-calibration; Varying intrinsic parameters; Nonlinear optimization;

    机译:控制点;基本矩阵;自校准;变化的内在参数;非线性优化;

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