Methods and a computing device for determining whether a mark is genuine
    6.
    发明授权
    Methods and a computing device for determining whether a mark is genuine 有权
    用于确定标记是否是真实的方法和计算装置

    公开(公告)号:US09519942B2

    公开(公告)日:2016-12-13

    申请号:US14623925

    申请日:2015-02-17

    IPC分类号: G06K9/00 G06T1/00

    摘要: The present disclosure is generally directed to a method and computing device for determining whether a mark is genuine. According to various embodiments, a computing device (or logic circuitry thereof) uses unintentionally-produced artifacts within a genuine mark to define an identifiable electronic signature, and extracts certain location identifiers corresponding to certain measured features of the signature in order to enhance the ease and speed with which numerous genuine signatures can be searched and compared with signatures of candidate marks.

    摘要翻译: 本公开通常涉及用于确定标记是否是真实的方法和计算装置。 根据各种实施例,计算设备(或其逻辑电路)使用真实标记内的无意产生的伪影来定义可识别的电子签名,并且提取与特征的某些测量特征相对应的某些位置标识符,以便增强容易度 可以搜索许多真实签名并与候选标记的签名进行比较的速度。

    Ensuring image integrity using document characteristics
    7.
    发明授权
    Ensuring image integrity using document characteristics 有权
    使用文档特征确保图像完整性

    公开(公告)号:US08639062B2

    公开(公告)日:2014-01-28

    申请号:US11869123

    申请日:2007-10-09

    摘要: Image integrity in an archive can be verified using document characteristics. Embodiments of the invention provide a way to verify the integrity of a stored document image by determining document characteristics, which can also be embedded in the image file. Before allowing access to the image file by an application, the characteristics data from an image analysis can be compared to either or both of, characteristics information otherwise stored, or embedded characteristics data. The embedded data can optionally be encrypted. In example embodiments the data can include a result of an optical character recognition of contents of the document, a length of data describing the image, a percentage of a specified color of pixels in the image, or a checksum. Example embedding techniques can include those making use of a tagged image file format (TIFF) header, a steganographic watermark, or an image artifact.

    摘要翻译: 存档中的图像完整性可以使用文档特征进行验证。 本发明的实施例提供了一种通过确定文档特性来验证所存储的文档图像的完整性的方式,文档特征也可以被嵌入在图像文件中。 在允许应用程序访问图像文件之前,来自图像分析的特征数据可以与另外存储的特征信息或嵌入的特征数据中的一个或两者进行比较。 嵌入式数据可以可选地加密。 在示例实施例中,数据可以包括文档内容的光学字符识别的结果,描述图像的数据的长度,图像中指定的像素颜色的百分比或校验和。 示例嵌入技术可以包括使用标记图像文件格式(TIFF)头,隐写水印或图像伪影的那些。

    Method and system for efficient watermarking of video content
    8.
    发明授权
    Method and system for efficient watermarking of video content 有权
    视频内容的高效水印方法和系统

    公开(公告)号:US08379911B2

    公开(公告)日:2013-02-19

    申请号:US13027675

    申请日:2011-02-15

    IPC分类号: G06K9/00 H04L9/32

    摘要: A method for watermarking of video content is provided. An averaged scene image is computed for each scene of video content by performing averaging of frames present in each scene of video content. For each averaged scene image a set of random numbers are generated using a secret key to identify pixels at random locations of the averaged scene image. The secret key is associated with a watermark pattern corresponding to each averaged scene image. The identified pixels in each averaged scene image are mapped to each pixel of corresponding watermark pattern to obtain respective mapped pixels. Using respective mapped pixels, values of verification information are fetched and assigned using predetermined rules. The values of verification information are arranged to obtain first visual cryptographic share of watermark pattern for each averaged scene image.

    摘要翻译: 提供了一种用于水印视频内容的方法。 通过对视频内容的每个场景中存在的帧进行平均,对视频内容的每个场景计算平均场景图像。 对于每个平均场景图像,使用秘密密钥来生成一组随机数,以识别平均场景图像的随机位置处的像素。 秘密密钥与对应于每个平均场景图像的水印图案相关联。 将每个平均场景图像中的识别像素映射到相应水印图案的每个像素,以获得相应的映射像素。 使用相应的映射像素,使用预定规则来获取和分配验证信息的值。 布置验证信息的值以获得每个平均场景图像的水印图案的第一可视加密份额。

    IMAGE FEATURE EXTRACTION DEVICE
    9.
    发明申请
    IMAGE FEATURE EXTRACTION DEVICE 有权
    图像特征提取装置

    公开(公告)号:US20110158538A1

    公开(公告)日:2011-06-30

    申请号:US13061027

    申请日:2009-07-14

    IPC分类号: G06K9/46

    摘要: This image feature extraction device extracts, from an image, an image feature that makes it possible to adjust the balance between identification capability and robustness, which are the scales of the capability of determining identity of images. This image feature extraction device executes hierarchical quantization to calculate quantization indexes of a plurality of hierarchies in accordance with a previously defined hierarchical quantization method for each quantization target region of an image, and outputs a hierarchical quantization index code, which is an encoding allowing unique specification of the quantization indexes of the respective hierarchies of each quantization target region.

    摘要翻译: 该图像特征提取装置从图像中提取图像特征,使得可以调整识别能力和鲁棒性之间的平衡,这是确定图像身份的能力的尺度。 该图像特征提取装置执行分层量化以根据对于图像的每个量化目标区域的先前定义的分层量化方法来计算多个层次的量化索引,并且输出作为允许唯一规范的编码的分层量化索引代码 的量化对象区域的各层次的量化索引。

    METHOD AND SYSTEM FOR IDENTIFYING UCC USING IMAGE IDENTIFIER
    10.
    发明申请
    METHOD AND SYSTEM FOR IDENTIFYING UCC USING IMAGE IDENTIFIER 审中-公开
    使用图像识别器识别UCC的方法和系统

    公开(公告)号:US20100232641A1

    公开(公告)日:2010-09-16

    申请号:US12741195

    申请日:2008-12-12

    申请人: Weon Geun Oh

    发明人: Weon Geun Oh

    IPC分类号: G06K9/00

    摘要: There is provided a method of identifying User-Created Content (UCC) using an image identifier, including combining a still image with the image identifier, requesting registration of UCC corresponding to the still image combined with the image identifier, and combining a UCC identifier, issued in response to the request, with the still image combined with the image identifier, thus generating final UCC.

    摘要翻译: 提供了一种使用图像标识符识别用户创建内容(UCC)的方法,包括将静止图像与图像标识符组合,请求与与图像标识符组合的静止图像相对应的UCC的注册,以及组合UCC标识符, 响应于请求发出,静止图像与图像标识符组合,从而生成最终的UCC。