A method for compensation of image distortion with image registration technique
A method for compensation of image distortion with image registration technique
复制标题
一种利用图像配准技术补偿图像畸变的方法
DOI：
--
复制
发表时间：
2001
影响因子：
0.7
通讯作者：
N. Ohnishi
中科院分区：
文献类型：
--
作者：
Toru Tamaki;T. Yamamura;N. Ohnishi
总而言之，我们提出了一种通过图像注册来校准内在的摄像机参数来补偿图像失真的方法，该方法不需要点对点对应关系。所提出的方法将校准模式与摄像机观察到的扭曲图像之间的注册分为两个步骤。第一步是从模式中直接的注册，以纠正投影引起的位移。第二步是从观察到的图像中的向后注册，以补偿图像的失真。这两个步骤均使用一种非线性优化技术高斯 - 纽顿方法，以最大程度地减少强度残差，以使模式和观察到的图像变得相同。实验结果表明该方法的有用性。最后，我们讨论了提出的方法的融合，该方法由两者组成
SUMMARY We propose a method for compensating distortion of image by calibrating intrinsic camera parameters by image registration which does not need point-to-point correspondence. The proposed method divides the registration between a calibration pattern and a distorted image observed by a camera into two steps. The first step is the straightforward registration from the pattern in order to correct the displacement due to projection. The second step is the backward registration from the observed image for compensating the distortion of the image. Both of the steps use Gauss-Newton method, a nonlinear optimization technique, to minimize residuals of intensities so that the pattern and the observed image become the same. Experimental results show the usefulness of the proposed method. Finally we discuss the convergence of the proposed method which consists of the two