arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.01964cs.CV
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从两个卷帘快门到一个全局快门

From two rolling shutters to one global shutter

Faculty of Electrical Engineering, Czech Technical University in Prague(捷克理工大学电气工程学院);ETH Zurich(苏黎世联邦理工学院);CIIRC, CTU in Prague(捷克理工大学捷克信息学、机器人与控制论研究所);Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague(捷克理工大学捷克信息学、机器人与控制论研究所)

Cenek Albl, Zuzana Kukelova, Viktor Larsson, Tomas Pajdla, Konrad Schindler

摘要:

大多数消费类相机都配备了电子卷帘快门,当相机在图像捕获过程中移动时,会导致图像失真。我们探索了一种令人惊讶的简单相机配置,可以消除卷帘快门失真:安装两台相机,使其具有不同的卷帘快门方向。这样的设置是容易和便宜的建立,它拥有的几何约束,需要校正卷帘快门失真只使用一组稀疏的两个图像之间的点对应。我们推导出方程描述的基本几何一般和特殊的运动,并提出了一个有效的方法来找到他们的解决方案。我们的合成和真实的实验表明,我们的方法是能够消除所有类型的大型卷帘快门失真,而不依赖于任何特定的场景结构。

英文摘要:

Most consumer cameras are equipped with electronic rolling shutter, leading to image distortions when the camera moves during image capture. We explore a surprisingly simple camera configuration that makes it possible to undo the rolling shutter distortion: two cameras mounted to have different rolling shutter directions. Such a setup is easy and cheap to build and it possesses the geometric constraints needed to correct rolling shutter distortion using only a sparse set of point correspondences between the two images. We derive equations that describe the underlying geometry for general and special motions and present an efficient method for finding their solutions. Our synthetic and real experiments demonstrate that our approach is able to remove large rolling shutter distortions of all types without relying on any specific scene structure.

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