Distortion correction of stereoscopic images for projection upon curved screens

A stereoscopic device enables stereoscopic image pairs to be projected upon a curved screen 1004 such that, when viewed from a presumed viewing position, the images are observed free from distortion which might otherwise result from the non-planar screen. The device comprises means for defining left and right virtual camera positions in 3D space, means for defining two or more virtual planes 20a,20b in front of the defined camera positions and means for generating (i) a virtual plane image corresponding to the left virtual camera, and (ii) a virtual plane image corresponding to the right virtual camera, the virtual plane images being generated by perspective projection transformation. The generated plane images represent the intended viewed images as perceived by a viewers left and right eyes when located at the presumed viewing position. In order to compensate for the predicted distortion of the generated plane images, the device also includes means for generating a projection image, the projection image being projected by a projector 1006 upon the curved screen using a pixel position correspondence relationship in which pixels in the generated virtual plane images are re-mapped onto positions in the projection image such that, when viewed from a presumed viewing position, the images are observed free from distortion. The images may be displayed using temporal multiplexing in which the left-eye and right-eye images are displayed alternately and viewed through synchronised shutter-type glasses. Embodiments describe the stereoscopic device used in a driving game system to enhance the users perception of reality. A corresponding image generation method is also disclosed.