| 摘要 |
A method embedding a user code into a media content, said user code being selected from a plurality of available user codes, each available user code comprising elements of an alphabet of at least a first and second types, said first type being associated to a first subset of noise seeds taken from a set of distinct noise seeds, said method comprising the acts of receiving a media content comprising a set of noise sequences embedded therein; said noise sequences being generated using the set of distinct noise seeds and a given noise function; receiving a second subset of the noise seeds; removing a sub-set of noise sequences from the media content, said sub-set of noise sequences being generated from the received second sub-set of noise seeds and the given noise function; wherein the received second sub set of noise seeds corresponds to the noise seeds from the set of distinct noise seeds that are not associated to an element of the first type. |
