| 摘要 |
The invention relates to a video coding method and device applied to a sequence of frames and generating a coded bitstream in which each data item is described by means of a bitstream syntax allowing any decoder to recognize and decode all the elements of the content of said bitstream. According to the invention, which finds an application for instance within the video compression standard MPEG-4, the syntax comprises a specific one bit flag provided for indicating at a high level description the presence, or not, of a shape for each video object of the scenes of the sequence. This flag is transmitted in the coded bitstream, and its value is read at the decoding side for controlling correspondingly the decoding step. |
