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1. 发明申请

WO2005124679A1 SEARCHING FOR A SCALING FACTOR FOR WATERMARK DETECTION 审中-公开
标题翻译：搜索用于水印检测的标度因子
公开(公告)号：WO2005124679A1
公开(公告)日：2005-12-29
申请号：PCT/IB2005/051862
申请日：2005-06-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LEMMA, Aweke, N. , VAN DE KERKHOF, Leon, M. , VAN DER VEEN, Minne , HAITSMA, Jaap, A.
发明人： LEMMA, Aweke, N. , VAN DE KERKHOF, Leon, M. , VAN DER VEEN, Minne , HAITSMA, Jaap, A.
IPC分类号： G06T1/00
CPC分类号： G06T1/0064
摘要： There is provided a watermark detector (20) including an input for receiving an input signal (Y') including watermark content (W) to be searched. A first processor (40) of the detector (20) is operable to analyse portions (100, 110, 120) of the signal (Y') to identify corresponding sets of characteristic properties or fingerprints (P 1 to P q ) and associated temporal descriptors (d 1 to d q ). A communication link to a database (50) is provided for communicating the fingerprints to the database (50) to identify the signal and to determine corresponding temporal descriptors (MT 1 to MT q ) corresponding to the portions (100, 110, 12.0) in the original signal. A second processor (220) is included for calculating from a difference between the temporal descriptors (d 1 to d q ) and the retrieved temporal descriptors (MT 1 to MT q ) a scaling factor to which the input signal (Y') has been subjected. The scaling factor is useable for re-scaling the signal and extracting the watermark from the resealed signal (Y').
摘要翻译：提供了一种水印检测器（20），其包括用于接收包括要搜索的水印内容（W）的输入信号（Y'）的输入。检测器（20）的第一处理器（40）可操作以分析信号（Y'）的部分（100,110,120），以识别特征属性或指纹（P1至Pq）和相关联的时间描述符（ d1至dq）。提供到数据库（50）的通信链路，用于将指纹传送到数据库（50）以识别信号并确定对应于原始部分（100,110,12.0）的相应时间描述符（MT1至MTq）信号。包括第二处理器（220），用于根据时间描述符（d1至dq）和检索的时间描述符（MT1至MTq）之间的差计算输入信号（Y'）已经经过的缩放因子。缩放因子可用于重新缩放信号并从重新密封的信号（Y'）提取水印。

2. 发明申请

WO2004066206A1 EMBEDDING MULTIPLE WATERMARKS 审中-公开
标题翻译：嵌入式多个水标
公开(公告)号：WO2004066206A1
公开(公告)日：2004-08-05
申请号：PCT/IB2003/006180
申请日：2003-12-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BRUEKERS, Alphons, A., M., L. , HAITSMA, Jaap, A. , VAN DER VEEN, Minne , KALKER, Antonius, A., C., M.
发明人： BRUEKERS, Alphons, A., M., L. , HAITSMA, Jaap, A. , VAN DER VEEN, Minne , KALKER, Antonius, A., C., M.
IPC分类号： G06T1/00
CPC分类号： G06T1/0071 , G06T2201/0083
摘要： In order to enable a data signal, such as an audio or video signal, to be marked with multiple watermarks a set of different codes or keys is used within a given application field. The set of codes/keys is known to a watermark embedder (20) and a watermark detector (22). In each watermark embedding step, whether it is a first embedding step or a subsequent embedding step, a different key is used. The embedder (22) includes a data extractor (24) for determining which key or keys has or have been used previously. A data generator (26) then selects a new key from the set of known keys.
摘要翻译：为了使数据信号（例如音频或视频信号）能够用多个水印进行标记，在给定的应用领域内使用一组不同的代码或密钥。水印嵌入器（20）和水印检测器（22）已知该组代码/键。在每个水印嵌入步骤中，无论是第一嵌入步骤还是后续嵌入步骤，使用不同的键。嵌入器（22）包括数据提取器（24），用于确定先前已使用或已经使用过哪些键或键。然后，数据发生器（26）从该组已知的密钥中选择一个新密钥。

3. 发明申请

WO2003043003A3 EMBEDDING SUPPLEMENTARY DATA IN AN INFORMATION SIGNAL 审中-公开
公开(公告)号：WO2003043003A3
公开(公告)日：2003-05-22
申请号：PCT/IB2002/004541
申请日：2002-10-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DER VEEN, Minne , HAITSMA, Jaap, A. , KALKER, Antonius, A., C., M. , BRUEKERS, Alphons, A., M., L.
发明人： VAN DER VEEN, Minne , HAITSMA, Jaap, A. , KALKER, Antonius, A., C., M. , BRUEKERS, Alphons, A., M., L.
IPC分类号： G11B20/00
摘要： Disclosed is a method of adjusting a supplementary data signal (wm(n)) to be embedded in an information signal (x(n)), for example an audio signal. The method comprises the steps of determining (301) a position where a predetermined property of the information signal exceeds a predetermined threshold, e.g. an attack position, and suppressing (302) the supplementary data signal in a predetermined neighbourhood of the determined position.

4. 发明申请

WO2003043003A2 EMBEDDING SUPPLEMENTARY DATA IN AN INFORMATION SIGNAL 审中-公开
标题翻译：嵌入信息信号中的补充数据
公开(公告)号：WO2003043003A2
公开(公告)日：2003-05-22
申请号：PCT/IB2002/004541
申请日：2002-10-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DER VEEN, Minne , HAITSMA, Jaap, A. , KALKER, Antonius, A., C., M. , BRUEKERS, Alphons, A., M., L.
发明人： VAN DER VEEN, Minne , HAITSMA, Jaap, A. , KALKER, Antonius, A., C., M. , BRUEKERS, Alphons, A., M., L.
IPC分类号： G11B20/00
CPC分类号： G11B20/00891 , G11B20/00086
摘要： Disclosed is a method of adjusting a supplementary data signal (wm(n)) to be embedded in an information signal (x(n)), for example an audio signal. The method comprises the steps of determining (301) a position where a predetermined property of the information signal exceeds a predetermined threshold, e.g. an attack position, and suppressing (302) the supplementary data signal in a predetermined neighbourhood of the determined position.
摘要翻译：公开了一种调整要嵌入在信息信号（x（n））中的补充数据信号（wm（n））的方法，例如音频信号。该方法包括以下步骤：确定（301）信息信号的预定属性超过预定阈值的位置，例如，攻击位置，并且在所确定的位置的预定邻域中抑制（302）补充数据信号。

5. 发明申请

WO2004010376A1 WATERMARK DETECTION 审中-公开
标题翻译：水印检测
公开(公告)号：WO2004010376A1
公开(公告)日：2004-01-29
申请号：PCT/IB2003/003095
申请日：2003-07-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BRUEKERS, Alphons, A., M., L. , HAITSMA, Jaap, A. , VAN DER VEEN, Minne , KALKER, Antonius, A., C., M.
发明人： BRUEKERS, Alphons, A., M., L. , HAITSMA, Jaap, A. , VAN DER VEEN, Minne , KALKER, Antonius, A., C., M.
IPC分类号： G06T1/00
CPC分类号： G06T1/005 , G06T2201/0052 , G06T2201/0065
摘要： A watermark detection method is disclosed which is based on computing the cross-correlation between a suspect signal and a watermark. In order to be more robust against prolonged dominant signal components that adversely affect the correlation, the sequence of signal samples (61) to be correlated with the watermark is divided into sub-sequences (A(k)). The sub-sequences are processed, by a weighting function, to obtain modified sub-sequences (B(k)) that individually exhibit the original signal variations, but collectively (62) exhibit a flatter distribution of sample values. Dominant peaks in the signal are thereby substantially reduced.
摘要翻译：公开了一种基于计算可疑信号和水印之间的互相关的水印检测方法。为了对于对相关性产生不利影响的长时间的主要信号分量更加鲁棒，与水印相关的信号样本（61）的序列被划分为子序列（A（k））。通过加权函数对子序列进行处理，以获得单独呈现原始信号变化的修改子序列（B（k）），但是共同地（62）表现出较平坦的样本值分布。因此，信号中的主要峰值显着降低。

6. 发明申请

WO2008072132A3 EXTRACTING AUXILIARY DATA FROM A HOST SIGNAL 审中-公开
公开(公告)号：WO2008072132A3
公开(公告)日：2008-06-19
申请号：PCT/IB2007/054926
申请日：2007-12-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CELIK, Mehmet, U. , LEMMA, Aweke, N. , HAITSMA, Jaap, A.
发明人： CELIK, Mehmet, U. , LEMMA, Aweke, N. , HAITSMA, Jaap, A.
IPC分类号： G06T1/00 , G10L19/00 , A63H30/04 , H04N1/32 , H04N7/26 , G11B20/00
摘要： The invention relates to extracting and embedding auxiliary data from and to a host signal. In an embodiment, the auxiliary data relates to remotely control of an application or a device, such as an interactive toy. Auxiliary data are extracted from a host signal, by periodically (32A-32C) with a predetermined first period searching a first section (33A-33C) of the host signal for a first watermark (34); and, upon detection of the first watermark, searching the host signal for a second watermark (35). In embodiments, information relating to timing and type of action to be performed by a remotely controlled device may be conveyed by the watermarks.

7. 发明申请

WO2003067467A1 FAST HASH-BASED MULTIMEDIA OBJECT METADATA RETRIEVAL 审中-公开
标题翻译：快速基于HASH的多媒体对象元数据检索
公开(公告)号：WO2003067467A1
公开(公告)日：2003-08-14
申请号：PCT/IB2003/000260
申请日：2003-01-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HAITSMA, Jaap, A.
发明人： HAITSMA, Jaap, A.
IPC分类号： G06F17/30
CPC分类号： G06F17/30758 , G06F17/30743
摘要： When a client requests metadata for a multimedia object, a server (120) computes a fingerprint for the multimedia object and matches it against entries stored in a primary database (121). Additionally, the server system (120) monitors one or more transmission channels such as radio broadcast channels, and computes transmission fingerprints for transmissions on those channels. The transmission fingerprints are matched with the fingerprints stored in the primary database (121), and if a match is found, an entry for the identified transmission is then added to the secondary database (122). Preferably this entry contains the transmission fingerprint. Subsequent matches are then first performed against the secondary database (122) and only upon unsuccessful matches also matched against the primary database (121). Also covers the method and a computer program product for performing the method.
摘要翻译：当客户端请求多媒体对象的元数据时，服务器（120）计算多媒体对象的指纹，并将其与存储在主数据库（121）中的条目进行匹配。另外，服务器系统（120）监视诸如无线电广播信道之类的一个或多个传输信道，并且计算用于这些信道上的传输的传输指纹。传输指纹与存储在主数据库（121）中的指纹相匹配，并且如果找到匹配，则将所识别的传输的条目添加到辅助数据库（122）。优选地，该条目包含传输指纹。然后，首先对次要数据库（122）执行随后的匹配，并且仅在不匹配的匹配的主数据库（121）上进行匹配。还包括用于执行该方法的方法和计算机程序产品。

8. 发明申请

WO2003046760A2 FINGERPRINT DATABASE MAINTENANCE METHOD AND SYSTEM 审中-公开
标题翻译：指纹数据库维护方法和系统
公开(公告)号：WO2003046760A2
公开(公告)日：2003-06-05
申请号：PCT/IB2002/004605
申请日：2002-10-31
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , KALKER, Antonius, A., C., M. , HAITSMA, Jaap, A.
发明人： KALKER, Antonius, A., C., M. , HAITSMA, Jaap, A.
IPC分类号： G06F17/30
CPC分类号： G06F17/30038
摘要： A method of maintaining a database comprising a fingerprint of and an associated set of metadata for each of a number of multimedia objects. Respective portions (201, 202, 203, 204, 205) of the database are distributed over respective file sharing clients (101-105) connected to a file sharing network (100) arranged for sharing said numberof multimedia objects. File sharing clients (101-105) can maintain their own respective portions (201-205) of the database, or transmit fingerprints and metadata to another file sharing client. In the latter case, the other file sharingclient is preferably a supernode in the file sharing network (100).
摘要翻译：一种维护数据库的方法，所述数据库包括多个多媒体对象中的每一个的指纹和相关的一组元数据。数据库的各个部分（201,202,203,204,205）分布在连接到文件共享网络（100）的相应文件共享客户端（101-105）上，文件共享网络（100）被安排用于共享所述多个多媒体对象。文件共享客户端（101-105）可以维护数据库各自的部分（201-205），或将指纹和元数据传输到另一个文件共享客户端。在后一种情况下，其他文件共享客户端优选地是文件共享网络（100）中的超级节点。

9. 发明申请

WO2003042867A3 FINGERPRINT DATABASE UPDATING METHOD, CLIENT AND SERVER 审中-公开
公开(公告)号：WO2003042867A3
公开(公告)日：2003-05-22
申请号：PCT/IB2002/004467
申请日：2002-10-24
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , KALKER, Antonius, A., C., M. , HAITSMA, Jaap, A.
发明人： KALKER, Antonius, A., C., M. , HAITSMA, Jaap, A.
IPC分类号： G06F17/30
摘要： A method of updating a database (211) comprising a fingerprint of and an associated set of metadata for each of a number of multimedia objects, A multimedia object and a set of metadata for the multimedia object is downloaded from a file sharing client (101-105). A fingerprint is computed from the multimedia object, and the computed fingerprint and the obtained set of metadata are included in the database (211). The database (211) can be maintained by a central server (210), or be maintained in a distributed fashion by servers (404) running on the file sharing clients (101-105). The database (211) in this way accumulates plural sets of metadata associated with one particular fingerprint. When a sufficient number of sets has been collected, a definite set can be determined using filtering techniques.

10. 发明申请

WO2007148290A2 GENERATING FINGERPRINTS OF INFORMATION SIGNALS 审中-公开
标题翻译：生成信息信号指纹
公开(公告)号：WO2007148290A2
公开(公告)日：2007-12-27
申请号：PCT/IB2007/052368
申请日：2007-06-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HAITSMA, Jaap, A. , BHARGAVA, Vikas
发明人： HAITSMA, Jaap, A. , BHARGAVA, Vikas
IPC分类号： G06T1/00
CPC分类号： G06T1/005 , G06F17/30799 , G06K9/00744 , G06T1/0085 , G06T2201/0065
摘要： The present invention provides a method for generating fingerprints (1) of information signals (2), and in particular of video signals, those fingerprints being robust with respect to the frame rate of the information signal. Embodiments achieve this robustness by computing a sequence (3) of sub-fingerprints (30) from the sequence of frames of the source information signal, the sequence of sub- fingerprints having a predetermined rate independent of the frame rate of the source, and each sub- fingerprint being derived from and dependent upon a data content of at least one frame of the information signal. The sub- fingerprints at the predetermined rate are then concatenated to form the fingerprint (1) of the source signal.
摘要翻译：本发明提供一种用于产生信息信号（2）的指纹（1），特别是视频信号的方法，这些指纹相对于信息信号的帧速率是鲁棒的。实施例通过从源信息信号的帧的序列计算子指纹（30）的序列（3）来实现该鲁棒性，子指纹序列具有独立于源的帧速率的预定速率，以及每个子指纹从信息信号的至少一帧的数据内容导出并取决于该数据内容。然后将预定速率的子指纹级联以形成源信号的指纹（1）。

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