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    • 3. 发明授权
    • Method and device for embedding watermark information and method and device for extracting embedded watermark information
    • 用于嵌入水印信息的方法和装置以及用于提取嵌入水印信息的方法和装置
    • US07886152B2
    • 2011-02-08
    • US10502622
    • 2004-07-22
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • H04L9/32
    • G06T1/0085G06T1/005G06T2201/0065
    • For embedding watermark information into an information signal including audio and/or video information, first of all a synchronization sequence with a plurality of synchronization sequence units and a data sequence with a plurality of data sequence units are provided, wherein between the data sequence and the synchronization sequence a time shift is present and wherein a degree of shifting depends on the watermark information. A combination means generates a combination sequence having a plurality of combination sequence units from the synchronization sequence and the data sequence shifted with regard to the synchronization sequence, wherein the combination sequence units are derived from synchronization sequence units and shifted data sequence units. The combination sequence is combined with the information signal in order to embed the watermark information into the information signal. A watermark extractor receives a synchronization sequence correlation peak for every data sequence correlation peak associated with the same and therefore determines the watermark information on the basis of the time interval between the synchronization sequence correlation peak and the data sequence correlation peak in a secure and robust way. The concept is robust, provides a high data rate and is simultaneously flexible with regard to the weighting of synchronization energy and data energy and with regard to the robustness on the one hand and data rate on the other hand, respectively.
    • 为了将水印信息嵌入到包括音频和/或视频信息的信息信号中,首先提供具有多个同步序列单元的同步序列和具有多个数据序列单元的数据序列,其中在数据序列和 同步序列存在时移,其中移位程度取决于水印信息。 组合装置根据同步序列产生具有多个组合序列单元的组合序列和相对于同步序列移位的数据序列,其中组合序列单元从同步序列单元和移位数据序列单元导出。 将组合序列与信息信号组合,以将水印信息嵌入到信息信号中。 水印提取器接收与其相关联的每个数据序列相关峰值的同步序列相关峰值,因此以安全和鲁棒的方式基于同步序列相关峰值与数据序列相关峰值之间的时间间隔来确定水印信息 。 该概念是鲁棒的,提供高数据速率,并且在同步能量和数据能量的加权方面以及另一方面一方面的鲁棒性和数据速率方面同时是灵活的。
    • 4. 发明申请
    • Method and device for embedding watermark information and method and device for extracting embedded watermark information
    • 用于嵌入水印信息的方法和装置以及用于提取嵌入水印信息的方法和装置
    • US20050105726A1
    • 2005-05-19
    • US10502622
    • 2003-02-25
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • Christian NeubauerJuergen HerreRalph KulessaFrank SiebenhaarWolfgang Spinnler
    • G06T1/00H04N7/167
    • G06T1/0085G06T1/005G06T2201/0065
    • For embedding watermark information into an information signal including audio and/or video information, first of all a synchronization sequence with a plurality of synchronization sequence units and a data sequence with a plurality of data sequence units are provided, wherein between the data sequence and the synchronization sequence a time shift is present and wherein a degree of shifting depends on the watermark information. A combination means generates a combination sequence having a plurality of combination sequence units from the synchronization sequence and the data sequence shifted with regard to the synchronization sequence, wherein the combination sequence units are derived from synchronization sequence units and shifted data sequence units. The combination sequence is combined with the information signal in order to embed the watermark information into the information signal. A watermark extractor receives a synchronization sequence correlation peak for every data sequence correlation peak associated with the same and therefore determines the watermark information on the basis of the time interval between the synchronization sequence correlation peak and the data sequence correlation peak in a secure and robust way. The concept is robust, provides a high data rate and is simultaneously flexible with regard to the weighting of synchronization energy and data energy and with regard to the robustness on the one hand and data rate on the other hand, respectively.
    • 为了将水印信息嵌入到包括音频和/或视频信息的信息信号中,首先提供具有多个同步序列单元的同步序列和具有多个数据序列单元的数据序列,其中在数据序列和 同步序列存在时移,其中移位程度取决于水印信息。 组合装置根据同步序列产生具有多个组合序列单元的组合序列和相对于同步序列移位的数据序列,其中组合序列单元从同步序列单元和移位数据序列单元导出。 将组合序列与信息信号组合,以将水印信息嵌入到信息信号中。 水印提取器接收与其相关联的每个数据序列相关峰值的同步序列相关峰值,因此以安全和鲁棒的方式基于同步序列相关峰值与数据序列相关峰值之间的时间间隔来确定水印信息 。 该概念是鲁棒的,提供高数据速率,并且在同步能量和数据能量的加权方面以及另一方面一方面的鲁棒性和数据速率方面同时是灵活的。