P R IN T 360 x 360 Mosaic with Partially Calibrated 1 D Omnidirectional Camera

We focus on composition of mosaic images using a 360 x 360 mosaic camera. Such a camera is obtained by moving a 1D omnidirectional camera on a circular path. This 1D camera captures a set of light rays in one plane, which should be tangent to the circular path of the camera center and perpendicular to the plane in which this circle lies. However, in practical realizations, this condition does not need to be fulfilled exactly. There are three possible rotations of the 1D omnidirectional camera in space. In this paper we investigate one of them, the in-plane rotation. We show that this rotation breaks the epipolar rectification of the mosaic images and we show that only one point correspondence is required to rectify the images. We also examine the effect of non-square pixels of the CCD cameras used for a practical realization of the 360 x 360 mosaic camera.