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1. 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.

2. 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。

3. 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。

4. 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。

5. 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.

6. 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）。

7. 发明申请

WO2005050620A1 MATCHING DATA OBJECTS BY MATCHING DERIVED FINGERPRINTS 审中-公开
标题翻译：通过匹配衍生指纹匹配数据对象
公开(公告)号：WO2005050620A1
公开(公告)日：2005-06-02
申请号：PCT/IB2004/052334
申请日：2004-11-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , OOSTVEEN, Job, C. , KALKER, Antonius, A., C., M. , HAITSMA, Jaap, A.
发明人： OOSTVEEN, Job, C. , KALKER, Antonius, A., C., M. , HAITSMA, Jaap, A.
IPC分类号： G10L15/10
CPC分类号： G06K9/00496 , G06F17/30743 , G06F17/30784 , G10L25/48
摘要： The invention relates to methods and apparatus for matching a query data object with a candidate data object by esetracting and comparing fingerprints of said data objects. In an embodiment of the invention apparatus comprising a fingerprint extraction module (110), a fingerprint matching module (210), a statistical module (120) and an identification module is provided. The fingerprint extraction module (110) receives an information signal forming part of a query object and constructs a query fingerprint. The fingerprint matching module (210) compares the query fingerprint to candidates stored in a database (215) to find at least on potentially best matching candidate. Meanwhile, the statistical module determines a statistical model of the query fingerprint so as to, for instance, determine the statistical distribution of certain information inside the query fingerprint. The threshold determiner (120) is arranged, on the basis of the distribution of the query fingerprint to derive an adaptive threshold distance T within which the query fingerprint and a potentially best matching candidate may be declared similar by the identification module (130). By setting a threshold which ma depand on satatistical data derived from the query and/or candidate fingerprint , an improved false acceptance rate F.A.R. may be achieved.
摘要翻译：本发明涉及通过分析和比较所述数据对象的指纹来将查询数据对象与候选数据对象进行匹配的方法和装置。在包括指纹提取模块（110）的本发明装置的实施例中，提供了指纹匹配模块（210），统计模块（120）和识别模块。指纹提取模块（110）接收构成查询对象的一部分的信息信号，构成查询指纹。指纹匹配模块（210）将查询指纹与存储在数据库（215）中的候选者进行比较，以至少找到潜在的最佳匹配候选。同时，统计模块确定查询指纹的统计模型，以便例如确定查询指纹内的某些信息的统计分布。阈值确定器（120）基于查询指纹的分布被安排以导出自适应阈值距离T，在该自适应阈值距离T内，识别模块（130）可以将查询指纹和潜在最佳匹配候选者声明为类似的。通过设置从查询和/或候选指纹导出的关于统计数据的阈值，改进的错误接受率F.A.R. 可以实现。

8. 发明申请

WO2004030341A1 FINGERPRINT EXTRACTION 审中-公开
标题翻译：指纹提取
公开(公告)号：WO2004030341A1
公开(公告)日：2004-04-08
申请号：PCT/IB2003/003658
申请日：2003-08-11
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HAITSMA, Jaap, A.
发明人： HAITSMA, Jaap, A.
IPC分类号： H04N1/32
CPC分类号： G10H1/0058 , G10H2250/135 , G10H2250/161 , G10H2250/235 , G10L19/018 , H04N1/32122 , H04N2201/3235 , H04N2201/3236 , H04N2201/3274
摘要： Fingerprints are bit strings extracted from a media signal (e.g. an audio or video clip) to identify said media signal. Typically, they are derived from a perceptual property of the signal, for example, the spectral energy distribution of an audio fragment or the luminance distribution of a video image. A method and arrangement for extracting a fingerprint is here disclosed which is robust with respect to shifts of the perceptual property. Such shifts occur, inter alia, when the fingerprint is derived from a logarithmically mapped spectral energy distribution of an audio signal and said audio signal is subjected to speed changes. According to the invention, the fingerprint is not derived from the perceptual property as such, but from its auto-correlation function.
摘要翻译：指纹是从媒体信号（例如，音频或视频剪辑）提取的位串，用于识别所述媒体信号。通常，它们来自于信号的感知特性，例如音频片段的频谱能量分布或视频图像的亮度分布。这里公开了一种用于提取指纹的方法和装置，其对于感知特性的变化是鲁棒的。特别地，当指纹从音频信号的对数映射的频谱能量分布导出并且所述音频信号受到速度变化时，发生这种移位。根据本发明，指纹不是从知觉性质得到的，而是从其自相关函数得出。

9. 发明申请

WO2004008457A3 COPY CONTROL USING DIGITAL SPEED BUMPS 审中-公开
公开(公告)号：WO2004008457A3
公开(公告)日：2004-01-22
申请号：PCT/IB2003/002935
申请日：2003-06-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , WIRTZ, Gijsbrecht, C. , KALKER, Antonius, A., C., M. , STARING, Antonius, A., M. , HAITSMA, Jaap, A. , LINNARTZ, Johan, P., M., G.
发明人： WIRTZ, Gijsbrecht, C. , KALKER, Antonius, A., C., M. , STARING, Antonius, A., M. , HAITSMA, Jaap, A. , LINNARTZ, Johan, P., M., G.
IPC分类号： G11B20/00
摘要： A digital media recorder and a method of controlling such is shown. During attempts to copy media content such as audio or a video sequences, sub-sequences are extracted from an input media sequence. A digital fingerprint of the sub-sequence is calculated and compared with at least one first reference fingerprint from a database. The outcome of the comparison determines the action to take in the further processing. Recording of the input media sequence on the media carrier is either allowed or obstructed, e.g. disallowed. In the case recording of the sequence is allowed, the database is updated with information that the digital media sequence has been recorded. This has the effect of a "speed bump," which limits the rate at which those copies of media content can be made, i.e. the effect is that of prohibiting more than a given number of copies within a given time frame.

10. 发明申请

WO2004081817A1 IMPROVED DATA RETRIEVAL METHOD AND SYSTEM 审中-公开
标题翻译：改进的数据检索方法和系统
公开(公告)号：WO2004081817A1
公开(公告)日：2004-09-23
申请号：PCT/IB2004/050195
申请日：2004-03-03
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , DE RUIJTER, Hendrikus, A., A., M. , HAITSMA, Jaap, A. , MAANDONKS, Arnoldus, J., L., M.
发明人： DE RUIJTER, Hendrikus, A., A., M. , HAITSMA, Jaap, A. , MAANDONKS, Arnoldus, J., L., M.
IPC分类号： G06F17/30
CPC分类号： G06Q10/10 , G06F17/30743 , G06F17/30749 , G06F17/30758 , H04H20/14 , H04H2201/90
摘要： A method of obtaining data associated with a content item, comprising the steps of obtaining (32) an identifier for the content item, performing (33) a database lookup to obtain the data using the identifier and submitting (37) the content item to an output (210) for processing by a human (200) if the database lookup fails to obtain the data, characterized by a step (35) of automatically classifying the content item into one of a number of classes, and by performing at least one of the other steps conditionally based upon the classification of the content item. In an embodiment the content item is submitted to the output only if (36) the database lookup fails to obtain the data and the content item was classified into one of a number of predetermined classes. Also a server (300) and a computer program product arranged to carry out the method.
摘要翻译：一种获取与内容相关联的数据的方法，包括以下步骤：获取（32）所述内容项目的标识符，执行（33）数据库查找以使用所述标识符获取所述数据，并将所述内容项目提交给输出（210），用于如果所述数据库查找未能获得所述数据，则由人（200）处理，其特征在于，将所述内容项自动分类为多个类别中的一个类别的步骤（35），以及通过执行以下操作中的至少一个：其他步骤有条件地基于内容项目的分类。在一个实施例中，只有（36）数据库查找不能获得数据并且内容项目被分类为多个预定类别中的一个时，内容项才被提交给输出。还有一种服务器（300）和计算机程序产品，用于执行该方法。

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