The instant application describes a stereoscopic video processing system that includes a vector detector configured to detect a motion vector associated with frames of an input video signal; an output image generator configured to generate interpolation frames based on the frames of the input video signal and the motion vector and to arrange the frames of the input video signal and the interpolation frame along a time axis; and an output controller configured to control the output image generator to output the interpolation frames as the output video signal alternately at intervals of one frame and two frames, and output the frames of the input video signal between the one frame and the two frames of the interpolation frames.