An omnidirectional stereoscopic sensor: spherical color image acquisition

Abstract

This paper describes an original stereoscopic sensor acquisition of color spherical images derived from panoramic images taken at different 3 0 space positions. The sensor principle is based on the rotation, under the control of two stepping motors, of two monochromatic linear CCD cameras around two perpendicular axes. The first axis, horizontal gets through the optical centers of the two cameras and allows acquiring color stereopanoramas. The second axis, vertical gets through the middle of the optical centers. It extends the acquisition to the whole scene. The mechanical sensor architecture allows to obtain cylindrical stereoscopic images along a ring path. A specific orthographic projection from the color panoramic images provides a couple of color spherical images. Experimental results show the high precision of the acquisition and high quality ofthe color spherical pictures. This sensor is particularly well adapted for the acquisition of scenes over 360x360 degrees for multimedia and motion pictures.

Acquisition of omnidirectional stereoscopic images and videos of dynamic scenes: a review

“…52 Other authors reported variations on the rotating stereoscopic rig method that are worth mentioning. For instance, Romain et al 53 proposed a rotating platform with two degrees of freedom, which can rotate in azimuth and elevation to produce spherical omnistereoscopic images. More recently, Ainsworth et al 54 revisited the method of a rotating stereoscopic rig to minimize (not to eliminate as the authors stated) stitching problems.…”