Patent ID: 8126051
Filing Date: 2012-02-28
Classification: H04N

Abstract:
1. An encoding method applied to an input video sequence corresponding to successive scenes subdivided into successive video object planes (VOPs), the method comprising: generating a coded bitstream for coding all the video objects of said scenes, the content of the coded bitstream is described in terms of separate channels and constituted of encoded video data in which each data item is described by means of a bitstream syntax allowing recognition and decoding of all the elements of said content, wherein the coded bitstream further comprises additional syntactic information provided for describing independently for each channel the type of temporal prediction for that channel, the type of temporal predictions being chosen from a list comprising the following situations: the temporal prediction is formed by directly applying the motion field sent by the encoder on one or more reference pictures; the temporal prediction is a copy of a reference image; the temporal prediction is formed by the temporal interpolation of the motion field; the temporal prediction is formed by the temporal interpolation of the current motion field and further refined by the motion field sent by the encoder; and wherein the additional syntactic information is a syntactic element placed at a selected level in said generated coded bitstream and its meaning is specific for each present channel.