Patent ID: 9113020
Filing Date: 2015-08-18
Classification: H04N

Abstract:
1. A method for transmitting a video stream comprising the steps of: downsampling by an encoder an ultra high definition (UHD) video stream to split the UHD video stream into a sub-stream of a viewable high definition (HD) compatible video, a sub-stream of an HD-size video, and a sub-stream of residual data, and encoding each of the split sub-streams; multiplexing by a multiplexer signaling information describing a relation between the UHD video stream and at least one of the sub-streams with the at least one of the sub-streams; and transmitting by a transmitter the at least one multiplexed HD video sub-stream and the signaling information, wherein the viewable HD compatible video is generated through a process of low pass filtering and down-sampling UHD video of the UHD video stream, wherein the HD-size video is generated through a process of sub-sampling the UHD video, and wherein the residual data is generated by a subtractor and represents a difference between the viewable HD compatible video and the HD-size video.