Patent ID: 8442120
Filing Date: 2013-05-14
Classification: H04N

Abstract:
1. A digital video communication system comprising: at least one encoding device for transmitting coded digital video using a scalable video coding format that supports one or more of temporal, spatial or quality scalability, at least one decoding device for decoding at least one digital video stream coded in a scalable video coding format, and a Scalable Video Coding Server (SVCS) linked to the at least one decoding device and the at least one encoding device by at least one communication channel each, wherein the video signal transmitted from the at least one encoding device is partitioned into distinct data sets comprising: a first data set corresponding to the target layer intended for decoding by the at least one decoding device, a second data set corresponding to layers that correspond to lower temporal, spatial, or quality resolutions that the target layer intended for decoding by the at least one decoding device, a third auxiliary data set corresponding to layers that correspond to lower temporal, spatial, or quality resolutions than the target layer intended for decoding by the at least one decoding device and containing at least information that is used for prediction by the target layer intended for decoding, and an optional fourth data set corresponding to layers that correspond to higher temporal, spatial, or quality resolutions that the target layer intended for decoding by the at least one decoding device, such that the SVCS can selectively multiplex data from the second and third data sets to the at least one decoding device in conjunction with that of the first data set and optionally the fourth data set.