Enhance Quality Of 360 Video Playback with 360adapt Adaptive View Codec
Immersive video experiences using 360 video playback enables you to educate, entertain, inform, and inspire your audience.
These technologies are being used today in film and television, as interactive tools for estate agents or museums, and in many other use cases.
Sphere Mapping Approach
Until now, the prevailing technique for achieving 360 playback has been the sphere mapping approach (or equirectangular), applying a sphere onto a single plane which results in multiple perspectives presented from in front of and behind a fixed point – where the viewer is positioned. Limitations of this approach include viewpoint inflexibility, image distortion from flattening the sphere onto a 2D surface, and redundant information at the top and bottom poles of the sphere.
360 video becoming an in-demand technology has created the impetus for developers to transition from sphere mapping to cube mapping.
Cube Mapping Approach
Popularised within gaming, computer graphics and image processing, the cube mapping approach eliminates many of the limitations experienced when mapping 360 video to spherical geometry – image distortion, viewpoint inflexibility, and redundant viewing information.
Perspectives are rendered to each of the six faces of a cube, defined at each 90° view. The seams between each view are joined through seamless reflection algorithms to deliver non-distorted 360 playback.
How Adaptive View Provides The Best Experience
Our 360adapt adaptive approach abandons sphere mapping in favour of cube mapping. Perspectives are rendered at different resolution to enable a higher resolution to those in field-of-view than those off-view, to the sides and behind the viewer. With adaptive view content providers can achieve:
- Less than half bandwidth usage for equal resolution
- Double resolution with the same bandwidth
- Stereoscopic VR at no extra bandwidth cost