首页>
外国专利>
Digital video watermarking method with adaptive selection of the watermarking area, watermarking detection method, device, corresponding computer readable storage medium and computer program product.
Digital video watermarking method with adaptive selection of the watermarking area, watermarking detection method, device, corresponding computer readable storage medium and computer program product.
The process involves inserting a tattooing bit on a displacement vector to obtain tattooed displacement vectors. Coordinates of the displacement vector are modified to be situated in a binary value zone of the bit. An optimal tattooed displacement vector is selected, based on preset criteria, in a manner such that the modified coordinates are the coordinates of the optimal vector. Independent claims are also included for the following: (a) a process for extracting tattooing of a video image sequence (b) a device for tattooing a video image sequence (c) a signal representing a video image sequence recorded on a support utilized in a computer (d) a computer program product having instruction to execute a process of tattooing a video image sequence.
展开▼