Forward Mapped Planar Mirror Reflections

Shape-from-copies

It is shown how multiple occurrences of a planar shape in a single plane or parallel planes can be used to extract information about their common orientation and to consequently deproject the image. This special case of shape-from-contour is coined "shape-from-copies". In particular, pseudoorthographic projections of planar contour segments related by a similarity are considered. Skewed rotatio...

Camera to Robot-body Calibration Using Planar Mirror Reflections

Camera Pose Estimation Using Images of Planar Mirror Reflections

The image of a planar mirror reflection (IPMR) can be interpreted as a virtual view of the scene, acquired by a camera with a pose symmetric to the pose of the real camera with respect to the mirror plane. The epipolar geometry of virtual views associated with different IPMRs is well understood, and it is possible to recover the camera motion and perform 3D scene reconstruction by applying stan...

A Real-Time Catadioptric Stereo System Using Planar Mirrors

By using mirror reflections of a scene, stereo images can be captured with a single camera. Single camera stereo provides both geometric and radiometric advantages over traditional two camera stereo. In this paper, we discuss these advantages and show that the epipolar geometry is restricted to the class of planar motions. In addition we have implemented a real-time system which demonstrates th...

Kaleidoscopic imaging

Kaleidoscopes have a great potential in computational photography as a tool for redistributing light rays. In time-of-flight imaging the concept of the kaleidoscope is also useful when dealing with the reconstruction of the geometry that causes multiple reflections. This work is a step towards opening new possibilities for the use of mirror systems as well as towards making their use more pract...