1. A computer-implemented method for processing stereo images, the method comprising: receiving a video sequence associated with a recorded setting of a stereoscopic camera, the video sequence comprising pairs of left and right images; and processing the pairs of left and right images by a computer to detect and reduce an influence of a discrepancy between the recorded setting of the stereoscopic camera and a corresponding actual setting of the stereoscopic camera, wherein the corresponding actual setting is determined using a virtual three-dimensional (3D) space and a virtual camera rig in the virtual 3D space.