Monoscopic 180° and 360° videos are the most commonly produced VR videos. These are usually captured with a single camera per FOV and stitched together to make a single equirectangular video. In contrast to a flat, rectangular 2D video, the image appears as a spherical surface around the viewer. Using a motion sensor in the device, the FOV moves with the user’s head, giving off the illusion of being inside the sphere. When compared to stereoscopic video, on the other hand, the image seems completely flat since it has no depth information because it displays the same picture to both eyes. This does, however, make monoscopic videos easier and cheaper to produce than stereoscopic ones, since they need less equipment and only deal with one image at a time. Monoscopic videos can also be displayed on any device, including desktop computers (per drag control), mobile devices (via motion sensor), and HMDs, while stereoscopic videos can only be watched on HMDs.
