Perceptible reversible watermarks
    21.
    发明申请
    Perceptible reversible watermarks 审中-公开
    可感知的可逆水印

    公开(公告)号:US20060078157A1

    公开(公告)日:2006-04-13

    申请号:US10542895

    申请日:2003-12-16

    IPC分类号: G06K9/00

    摘要: The invention relates to methods, devices and a signal, where an encoder compresses a first piece of information in the form of at least a first limited part of an image, provides perceptible additional information (38) related to the image, and provides the compressed first piece of information (40) in the image (36) and a decoder retrieves the image including the compressed first piece of information in the form of at least a first limited part of the image as well as the perceptible additional information, retrieves the perceptible additional information, and decompresses at least the compressed piece of information essentially without the losses for provision of at least one of image and perceptible additional information essentially without losses. The invention also relates to an image editor, a computer program product and a computer program element for processing additional information (38) such that the original image is restorable.

    摘要翻译: 本发明涉及方法,装置和信号,其中编码器以图像的至少第一有限部分的形式压缩第一条信息,提供与图像相关的可感知的附加信息(38),并且提供压缩的 图像(36)中的第一信息(40)和解码器检索包括图像的至少第一有限部分形式的压缩的第一信息的图像以及可感知的附加信息,检索可感知的 附加信息,并至少压缩压缩的信息,基本上没有损失以提供基本上没有损失的图像和可感知的附加信息中的至少一个。 本发明还涉及用于处理附加信息(38)的图像编辑器,计算机程序产品和计算机程序元件,使得原始图像是可恢复的。

    Identification of digital data sequences
    22.
    发明申请
    Identification of digital data sequences 审中-公开
    识别数字数据序列

    公开(公告)号:US20050273612A1

    公开(公告)日:2005-12-08

    申请号:US10521848

    申请日:2003-06-26

    摘要: Identification of a digital media sequence is performed by an encoding and a decoding process. A sequence is received and its digital fingerprint is computed. A database lookup based on the fingerprint produces one or more matches that all resemble the computed fingerprint to a certain degree. If there is more than one match, at least one attempt is made to detect a watermark in the sequence. If a watermark is found, at least part of the watermark is extracted and used to select one of the matches among the sequences that resemble the media sequence to be identified.

    摘要翻译: 通过编码和解码处理来执行数字媒体序列的识别。 接收序列并计算其数字指纹。 基于指纹的数据库查找在一定程度上产生与计算出的指纹完全相似的一个或多个匹配。 如果存在多个匹配,则至少有一次尝试在序列中检测水印。 如果发现水印,则至少部分水印被提取并用于选择类似要识别的媒体序列的序列中的一个匹配。

    Template renewal in helper data systems
    23.
    发明授权
    Template renewal in helper data systems 有权
    帮助数据系统中的模板更新

    公开(公告)号:US08312289B2

    公开(公告)日:2012-11-13

    申请号:US11916092

    申请日:2006-05-23

    IPC分类号: G06F21/00

    摘要: The invention provides a method for authenticating a physical object (OBJ) using a first helper data (W1) and a first control value (V1) associated with a reference object. The method comprises a step to generate a first property set (S1) using a noise compensating mapping (NCM) on information derived from the first helper data (W1) and a metric data (Y) associated with the physical object, and a step to establish a sufficient match between the physical object and the reference object using the first property set (S1) and the first control value (V1). The method further comprises a step to generate an update data (WUPD) for updating the first helper data (W1) using the first helper data (W1), the first property set (S1) and the metric data (Y). Also provided is a client terminal configured to carry out the method.

    摘要翻译: 本发明提供一种使用与参考对象相关联的第一辅助数据(W1)和第一控制值(V1)来认证物理对象(OBJ)的方法。 该方法包括使用噪声补偿映射(N​​CM)对从第一辅助数据(W1)导出的信息和与物理对象相关联的度量数据(Y)产生第一属性集(S1)的步骤,以及步骤 使用第一属性集(S1)和第一控制值(V1)来建立物理对象和参考对象之间的足够的匹配。 该方法还包括使用第一辅助数据(W1),第一属性集(S1)和度量数据(Y)生成用于更新第一辅助数据(W1)的更新数据(WUPD)的步骤。 还提供了配置为执行该方法的客户终端。

    Relative Movement Sensor Comprising Multiple Lasers
    25.
    发明申请
    Relative Movement Sensor Comprising Multiple Lasers 审中-公开
    包含多个激光器的相对运动传感器

    公开(公告)号:US20080192229A1

    公开(公告)日:2008-08-14

    申请号:US11910475

    申请日:2006-03-29

    IPC分类号: G01P3/36

    摘要: A relative movement sensor for measuring movement of an object (15) and the sensor relative to each other, the sensor comprising a plurality of lasers (3,5) for generating respective measuring beams and illuminating the object (15) therewith, and a plurality of respective photodiodes (4,6) for measuring changes in operation of each laser cavity caused by reflected measuring beam radiation re-entering the respective laser cavity and the optical wave in the laser cavity. The plurality of lasers (3,5) are operated in a time-multiplexed manner such that only a subset (i.e. one or more) of the lasers is operated at any one time, the remaining lasers being idle. This reduces peak power dissipation and prevents erroneous interference caused by measuring beam radiation from one laser entering the cavity of another laser.

    摘要翻译: 一种用于测量物体(15)和传感器相对于彼此的运动的相对运动传感器,所述传感器包括用于产生相应测量光束并且与其对照的物体(15)的多个激光器(3,5),以及多个 用于测量由反射的测量光束辐射重新进入相​​应的激光腔和激光腔中的光波引起的每个激光腔的操作变化的各个光电二极管(4,6)。 多个激光器(3,5)以时间复用的方式操作,使得只有一个激光器的子集(即一个或多个)在任何一个时间被操作,剩余的激光器是空闲的。 这降低了峰值功率消耗,并防止了通过测量来自一个激光器进入另一激光器的腔体的光束辐射引起的错误干扰。

    Encoding and decoding of watermarks in independent channels
    27.
    发明申请
    Encoding and decoding of watermarks in independent channels 审中-公开
    独立通道中水印的编码和解码

    公开(公告)号:US20050240767A1

    公开(公告)日:2005-10-27

    申请号:US10516145

    申请日:2003-05-21

    摘要: Methods and apparatus for embedding a watermark in a multimedia signal and detecting the watermark, are described. The method comprises the steps of generating a watermark signal comprising a first sequence of values and a second sequence of values; obtaining a first signal portion corresponding to a first channel and a second signal portion corresponding to a second channel from the multimedia signal, said channels being significantly independent; generating a first host modifying signal as a mixture of the first signal portion and the first sequence; generating a second host modifying signal as a mixture of the second signal portion and the second sequence; and generating a watermarked multimedia signal by combining scaled versions of the host modifying signals with the multimedia signal.

    摘要翻译: 描述了在多媒体信号中嵌入水印和检测水印的方法和装置。 该方法包括以下步骤:产生水印信号,该水印信号包括第一序列值和第二序列值; 从所述多媒体信号获得对应于第一信道的第一信号部分和对应于第二信道的第二信号部分,所述信道是显着独立的; 产生第一主机修改信号作为第一信号部分和第一序列的混合; 产生第二主机修改信号作为第二信号部分和第二序列的混合; 以及通过将所述主机修改信号的缩放版本与所述多媒体信号组合来生成水印多媒体信号。

    TEMPLATE RENEWAL IN HELPER DATA SYSTEMS
    28.
    发明申请
    TEMPLATE RENEWAL IN HELPER DATA SYSTEMS 有权
    帮助数据系统中的模式更新

    公开(公告)号:US20090327747A1

    公开(公告)日:2009-12-31

    申请号:US11916092

    申请日:2006-05-23

    IPC分类号: H04L9/00

    摘要: The invention provides a method for authenticating a physical object (OBJ) using a first helper data (W1) and a first control value (V1) associated with a reference object. The method comprises a step to generate a first property set (S1) using a noise compensating mapping (NCM) on information derived from the first helper data (W1) and a metric data (Y) associated with the physical object, and a step to establish a sufficient match between the physical object and the reference object using the first property set (S1) and the first control value (V1). The method further comprises a step to generate an update data (WUPD) for updating the first helper data (W1) using the first helper data (W1), the first property set (S1) and the metric data (Y). Also provided is a client terminal configured to carry out the method.

    摘要翻译: 本发明提供一种使用与参考对象相关联的第一辅助数据(W1)和第一控制值(V1)来认证物理对象(OBJ)的方法。 该方法包括使用噪声补偿映射(N​​CM)对从第一辅助数据(W1)导出的信息和与物理对象相关联的度量数据(Y)产生第一属性集(S1)的步骤,以及步骤 使用第一属性集(S1)和第一控制值(V1)来建立物理对象和参考对象之间的足够的匹配。 该方法还包括使用第一辅助数据(W1),第一属性集(S1)和度量数据(Y)生成用于更新第一辅助数据(W1)的更新数据(WUPD)的步骤。 还提供了配置为执行该方法的客户终端。

    Embedding supplementary data in an information signal
    30.
    发明授权
    Embedding supplementary data in an information signal 失效
    将补充数据嵌入到信息信号中

    公开(公告)号:US07561688B2

    公开(公告)日:2009-07-14

    申请号:US10495537

    申请日:2002-10-24

    IPC分类号: H04L21/00

    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 (107) a relative magnitude (g(n)) of a first property function (Mx(n)) of the information signal averaged over a region of a predetermined size and a second property function (Mwm(n)) of the supplementary data signal averaged over said region; and adjusting (407) the supplementary data signal according to the determined relative magnitude.

    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(107)在预定大小的区域上平均的信息信号的第一属性函数(Mx(n))的相对幅度(g(n))和第二属性函数(Mwm n))在所述区域上平均的补充数据信号; 以及根据确定的相对幅度调整(407)所述补充数据信号。