Facebook unveils new generation.

Facebook unveils new generation of broadcast video virtual reality techniques 360-degree rotation

Facebook social network unveiled a new generation of technologies developed to overcome the obstacles to broadcast and share video clips VR Virtual Reality rotation angle of 360 degrees.

Facebook said that the biggest challenge was to provide a distinctive experience to use while browsing the latest news, especially with the increasing prevalence of video clips angle of 360 degrees, so the focus was to get rid of the existing problems of cylindrical symmetric-dimensional representation equirectangular in sections 360 degrees.

And supports the principle of a cylindrical representation on the extension of spherical shape like a globe map and turn it into a two-dimensional form, but this in turn leads to images slightly distorted, in addition to the lack of stability in the information on the upper part and the bottom of the picture; just like the extension of the North and South poles on the flat map .

To avoid cylindrical representation problems, Facebook has developed a representation using the cube Cube Maps, by dropping 25% from the top of the clip on one of the faces of the cube, and 25% from the bottom of the clip on another face of the cube, leaving it 50% of the cube or the equivalent of four faces It has been divided into two rows. This mechanism led to reducing the sectional area by up to 25%, which in turn allows broadcast video clips more quickly to provide a better experience.

Participated Facebook Library software, and bears the name of Transform, which convert video clips from cylindrical representation to representation using the cube on the site GitHub, where she said she eagerly awaiting the developers efforts in this library include building projects and great software.

In spite of overcoming some of the representation of video clips 360-degree problems, Facebook said that the operation of these sections on virtual reality his glasses many problems worked to solve also, for example, up vision accuracy in glasses GearVR to 6K per eye, and therefore broadcast video accurately 6K at 60 frames per second of data package will consume the equivalent of 20 video clip accurately HD.

For this reason, Facebook reached a way to benefit from representation by using the cube by putting it inside the pyramid and then extend all its aspects, which enabled them to broadcast what the user sees only at the moment with the neglect of the rest of the section parts while drawing attention towards him using virtual reality goggles.

In turn, the deployment of Mark Zuckerberg, the founder and, CEO of the network Facebook, on his account a video review convert video clips mechanism to make them fully compatible with the possibilities of the various virtual reality glasses, where this mechanism has allowed reducing the size of the video clips by up to 80% and thus will not face the social network and users both problems when you broadcast videos Bzoaah 360 degrees using virtual reality goggles.