A suitability detector identifies a plurality of frames of an input video. The suitability detector determines, based on characteristics of the plurality of frames, whether the input video is suitable for conversion from monoscopic visual content to stereoscopic 3D. The characteristics may include a visual cue present in the plurality of frames and a visual quality of the plurality of frames. If the input video is suitable for conversion, an image converter converts the input video to stereoscopic 3D.