Method and system for determining image transformation
    11.
    发明授权
    Method and system for determining image transformation 有权
    用于确定图像变换的方法和系统

    公开(公告)号:US06959098B1

    公开(公告)日:2005-10-25

    申请号:US09452022

    申请日:1999-11-30

    申请人: Adnan M. Alattar

    发明人: Adnan M. Alattar

    IPC分类号: G06K9/00

    CPC分类号: H04N1/32144

    摘要: A watermark decoding method makes use of a line-finding algorithm (e.g., the Radon transform) to determine rotation of an image from an initial orientation. Once rotation has been characterized, differential scaling of the image can readily be determined.

    摘要翻译: 水印解码方法利用寻线算法(例如,Radon变换)来确定来自初始取向的图像的旋转。 一旦旋转被表征,图像的微分缩放就可以容易地确定。

    Authentication of physical and electronic media objects using digital watermarks
    12.
    发明授权
    Authentication of physical and electronic media objects using digital watermarks 有权
    使用数字水印认证物理和电子媒体对象

    公开(公告)号:US07822225B2

    公开(公告)日:2010-10-26

    申请号:US12207211

    申请日:2008-09-09

    申请人: Adnan M. Alattar

    发明人: Adnan M. Alattar

    IPC分类号: H04N1/00

    摘要: A content watermarking method derives a watermark key from data representing content. In one particular method, a plural symbol message is algorithmically transformed in dependence on the derived watermark key. In another arrangement, the key specifies how or where the message is embedded in the content. A variety of other features and arrangements are also detailed.

    摘要翻译: 内容水印方法从表示内容的数据中导出水印密钥。 在一种特定方法中,依赖于所导出的水印密钥对多符号消息进行算术变换。 在另一种安排中,密钥指定消息嵌入到内容中的方式或位置。 还详细介绍了各种其他功能和安排。

    IDENTIFICATION AND PROTECTION OF VIDEO
    13.
    发明申请
    IDENTIFICATION AND PROTECTION OF VIDEO 有权
    识别和保护视频

    公开(公告)号:US20100027969A1

    公开(公告)日:2010-02-04

    申请号:US12534381

    申请日:2009-08-03

    申请人: Adnan M. Alattar

    发明人: Adnan M. Alattar

    IPC分类号: H04N5/91

    摘要: The present invention provides methods and apparatus that are helpful for identifying or protecting video. One claim recites a method including: receiving data representing picture elements of video; transforming the data into a frequency domain; comparing characteristics associated with the transformed data to predetermined characteristics that are associated with a first video type, and if the characteristics coincide, determining that the video is of the first video type; and if the characteristics do not coincide, comparing the characteristics of the transformed data to predetermined characteristics that are associated with a second video type, and if the characteristics coincide, determining that the video is of the second video type. Another claim recites a method including: obtaining information associated with a video; selecting a set of information from the obtained information; deriving identifying information from the selected set of information; and providing a security feature in or over data representing picture elements of the video according to the identifying information. Of course, other implementations are provided as well.

    摘要翻译: 本发明提供了有助于识别或保护视频的方法和装置。 一个方案涉及一种方法,包括:接收表示视频图像元素的数据; 将数据转换成频域; 将与所述变换数据相关联的特征与与第一视频类型相关联的预定特征进行比较,并且如果所述特征一致,则确定所述视频是所述第一视频类型; 并且如果所述特性不一致,则将所述经变换的数据的特性与与第二视频类型相关联的预定特征进行比较,并且如果所述特征一致,则确定所述视频是所述第二视频类型。 另一个声明提出了一种方法,包括:获得与视频相关的信息; 从所获得的信息中选择一组信息; 从所选择的信息集中导出识别信息; 以及根据所述识别信息,在表示所述视频的图像元素的数据中或其上提供安全特征。 当然,也提供其他实现。

    Processes for Encoding Substrates with Information and Related Substrates
    15.
    发明申请
    Processes for Encoding Substrates with Information and Related Substrates 有权
    使用信息和相关基板编码基板的过程

    公开(公告)号:US20090080758A1

    公开(公告)日:2009-03-26

    申请号:US12236307

    申请日:2008-09-23

    申请人: Adnan M. Alattar

    发明人: Adnan M. Alattar

    IPC分类号: G06K9/00

    摘要: The present invention provides processes to encode substrates (e.g., paper, synthetics, etc.) with information, and substrates including signals encoded therein. One claim recites a substrate-making process including: obtaining an element to be utilized in a substrate-making process, the element including a property to introduce a texture pattern including an encoded signal into a substrate, the encoded signal being machine-detectable from image data corresponding to at least a portion of the texture pattern, the encoded signal including a variable component; and utilizing the element to impart the texture pattern into a substrate during the substrate-making process. Another claim recites a physical substrate including: a surface having a texture pattern provided in the surface during a substrate-making process. The texture pattern includes a machine-readable signal that is detectable from image data corresponding to at least a portion of the texture pattern. The signal includes a variable component that has discernable properties in a frequency domain. The texture pattern is provided in the surface during the substrate-marking process by a non-printing element. Of course, other claims and combinations are also provided.

    摘要翻译: 本发明提供了用信息编码基底(例如纸,合成物等)的方法,以及包括其中编码的信号的基底。 一个方案涉及基板制造工艺,包括:获得要在基板制造工艺中使用的元件,所述元件包括将包括编码信号的纹理图案引入基板的特性,所述编码信号可从图像机器检测 对应于所述纹理图案的至少一部分的数据,所述编码信号包括可变分量; 并且在基板制造过程中利用该元件将纹理图案赋予基板。 另一个权利要求描述了物理基板,包括:在基板制造过程中具有设置在表面中的纹理图案的表面。 纹理图案包括可从对应于纹理图案的至少一部分的图像数据检测的机器可读信号。 该信号包括在频域中具有可辨别属性的可变分量。 通过非印刷元件在基板标记过程中在表面上提供纹理图案。 当然,也提供了其他权利要求和组合。

    Method and apparatus for detecting dissolve regions in digital video
sequences
    18.
    发明授权
    Method and apparatus for detecting dissolve regions in digital video sequences 失效
    用于检测数字视频序列中的溶解区域的方法和装置

    公开(公告)号:US5283645A

    公开(公告)日:1994-02-01

    申请号:US836992

    申请日:1992-02-14

    申请人: Adnan M. Alattar

    发明人: Adnan M. Alattar

    摘要: A method and apparatus for compressing a dissolve region within a sequence of digital motion video frames. A function is calculated based on statistical data derived from frames in the sequence. Dissolve region boundaries are then detected based on characteristics of the calculated function. Consecutive detected boundaries may be flagged as a dissolve region based on the average value of the function between the consecutive detected boundaries and the distance between the consecutive detected boundaries.

    摘要翻译: 一种用于压缩数字运动视频帧序列内的溶解区域的方法和装置。 基于从序列中的帧导出的统计数据来计算函数。 然后根据计算出的函数的特征来检测溶解区域边界。 连续检测到的边界可以基于连续检测到的边界之间的函数的平均值和连续检测到的边界之间的距离来标记为溶解区域。

    Method and apparatus for detecting fades in digital video sequences
    19.
    发明授权
    Method and apparatus for detecting fades in digital video sequences 失效
    用于检测数字视频序列中的灰度的方法和装置

    公开(公告)号:US5245436A

    公开(公告)日:1993-09-14

    申请号:US836108

    申请日:1992-02-14

    申请人: Adnan M. Alattar

    发明人: Adnan M. Alattar

    CPC分类号: G06T7/2053 H04N5/147

    摘要: A method and apparatus for detecting a fade within a sequence of digital motion video frames. A first frame and a previous frame are selected from the sequence as first and second regions, respectively, for processing. The mean of the first region and the mean of the second region are each calculated and the relative mean change between the means is determined. A fade is detected if the relative mean change exceeds a first predetermined threshold. Alternatively, a fade is detected if the relative mean change is less than the first predetermined threshold but greater than a second predetermined threshold and the magnitude of the difference between the means is greater than a third predetermined threshold.

    摘要翻译: 一种用于检测数字运动视频帧序列内的褪色的方法和装置。 分别从作为第一和第二区域的序列中选择第一帧和先前帧进行处理。 分别计算第一区域的平均值和第二区域的平均值,并确定平均值之间的相对平均值。 如果相对平均变化超过第一预定阈值,则检测到淡入淡出。 或者,如果相对平均变化小于第一预定阈值但大于第二预定阈值并且装置之间的差值的大小大于第三预定阈值,则检测到衰落。

    Hierarchical watermark detector
    20.
    发明授权
    Hierarchical watermark detector 有权
    分层水印检测器

    公开(公告)号:US08891811B2

    公开(公告)日:2014-11-18

    申请号:US11228033

    申请日:2005-09-14

    IPC分类号: G06K9/00

    摘要: The present invention relates generally to digital watermarking. In one implementation, we provide a hierarchical digital watermark detector method. The method includes: i) in a first layer of a hierarchical search, performing watermark detection on blocks of at least a portion of an incoming suspect signal; ii) identifying a first block in the portion that is likely to include a decodable digital watermark; and iii) in a second layer of the hierarchical search, performing additional watermark detection on overlapping blocks in a neighborhood around the first block. Another implementation provides a hierarchical watermark detector including a buffer and a detector. The buffer stores portions of an incoming signal. The detector evaluates watermark detection criteria for blocks stored in the buffer, and hierarchically zooms into a neighborhood of blocks around a block associated with watermark detection criteria that satisfies detection criteria.

    摘要翻译: 本发明一般涉及数字水印。 在一个实现中,我们提供了一种分层数字水印检测器方法。 该方法包括:i)在分层搜索的第一层中,对进入的可疑信号的至少一部分的块执行水印检测; ii)识别该部分中可能包括可解码数字水印的第一块; 以及iii)在所述分层搜索的第二层中,对所述第一块周围的邻域中的重叠块执行附加水印检测。 另一实施方案提供了包括缓冲器和检测器的分层水印检测器。 缓冲器存储进入信号的部分。 检测器评估存储在缓冲器中的块的水印检测标准,并且分级地放大到与满足检测标准的水印检测标准相关联的块周围的块的邻域。