Calibration and rectification for reflection stereo
Calibration and rectification for reflection stereo
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DOI：
10.1109/cvpr.2008.4587690
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发表时间：
2008-06
期刊：
影响因子：
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通讯作者：
M. Shimizu;M. Okutomi
中科院分区：
文献类型：
--
作者：
M. Shimizu;M. Okutomi
本文提出了一种利用透明板或双面半镜板的单幅复杂图像进行单相机距离估计的标定和校正方法，这两种图像统称为反射立体。该复像由透明板上的表面和后表面反射像组成，或者还包括通过双面半镜板的透射像和内反射像。距离估计需要反射立体的外部参数，包括板的形状和位置及其折射率。所提出的方法假设在复图像的兴趣点周围的局部区域内，平板是非平行的，而是平面的。该方法从复杂图像中的一组位移中估计外部参数。在实际图像上进行的实验验证了所提出的校正和校正方法的有效性以及较好的距离估计结果。
This paper presents a calibration and rectification method for single-camera range estimation using a single complex image with a transparent plate or a double-sided half-mirror plate, which are collectively called a reflection stereo. The range to an object is obtainable by finding the correspondence on a constraint line in the complex image, which consists of a surface and a rear-surface reflected image in the transparent plate, or also includes a transmitted and internal reflected image through a double-sided half-mirror plate. The range estimation requires extrinsic parameters of the reflection stereo that include the shape and position of the plate and its refraction index. The proposed method assumes that the plate is non-parallel but planar for a local region around the point of interest in the complex image. The method estimates the extrinsic parameters from a set of displacements in the complex images. Experiments using real images demonstrate the effectiveness of the proposed calibration and rectification method along with fine range estimation results.