| 摘要 |
The present invention relates to a method, device and computer program product for determining additional data to be embedded in a media signal as well as a media signal processing device having such a device for determining additional data. The device for determining additional data comprises an embedding unit (28). The embedding unit has a motion compensating unit (32), which obtains, from a media signal (X) divided into frames having blocks of a number of signal sample values, at least one motion vector (V) of a current frame that is associated with a first block of signal samples and retrieves additional data (WP0) embedded in a previous frame of the signal in dependence of the motion vector. The embedding unit also has a correcting unit (36), which determines coefficients of the retrieved additional data based on additional reference data (WR) as well as a data embedding unit (38) that embeds the corrected additional data into the first block. |
