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    System and method for hashing digital images
    61.
    发明授权
    System and method for hashing digital images 有权
    用于散列数字图像的系统和方法

    公开(公告)号：US07421128B2

    公开(公告)日：2008-09-02

    申请号：US10628751

    申请日：2003-07-28

    Applicant: Ramarathnam Venkatesan ,  Say-Ming William Koon

    Inventor： Ramarathnam Venkatesan ,  Say-Ming William Koon

    IPC: G06K9/36

    CPC classification number: G06T1/005 ,  G06F17/30247 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0061

    Abstract: A system has an image store, a digital hashing unit, and a watermark encoder. A digital image hashing unit computes a hash value representative of a digital image in such a manner that visually similar images hash to the same hash value and visually distinct images hash to different values. The hash value is stored in an image hash table and is associated via the table with the original image. This image hash table can be used to index the image storage. A watermark encoder computes a watermark based on the hash value and a secret. Using both values renders the watermark resistant to BORE (Break Once, Run Everywhere) attacks because even if the global watermark secret is discovered, an attacker still needs the hash value of each image to successfully attack the image. The system can be configured to police the Internet to detect pirated copies. The system randomly collects images from remote Web sites and hashes the images using the same hashing function. The system then compares the image hashes to hashes of the original images. If the hashes match, the collected image is suspected as being a copy of the original.

    Abstract translation: 系统具有图像存储器，数字散列单元和水印编码器。 数字图像哈希单元以这样的方式计算代表数字图像的散列值，使得视觉上相似的图像散列到相同的散列值，并将视觉上不同的图像散列到不同的值。 哈希值存储在图像哈希表中，并通过表与原始图像相关联。 该图像哈希表可用于索引图像存储。 水印编码器基于散列值和秘密来计算水印。 使用这两个值使得水印能抵抗BORE（Break Once，Run Everywhere）攻击，因为即使发现全局水印秘密，攻击者仍然需要每个图像的哈希值来成功攻击图像。 该系统可以配置为警告互联网检测盗版副本。 系统从远程网站随机收集图像，并使用相同的散列函数对图像进行散列。 然后系统将图像哈希与原始图像的散列进行比较。 如果哈希匹配，则所收集的图像被怀疑是原件的副本。

    Device, Method, And Recording Medium For Embedding/Detecting A Digital Watermark
    63.
    发明申请
    Device, Method, And Recording Medium For Embedding/Detecting A Digital Watermark 失效
    用于嵌入/检测数字水印的设备，方法和记录介质

    公开(公告)号：US20080101650A1

    公开(公告)日：2008-05-01

    申请号：US11791838

    申请日：2005-11-30

    Applicant: Masataka Ejima ,  Hisashi Inoue ,  Kenichi Noridomi

    Inventor： Masataka Ejima ,  Hisashi Inoue ,  Kenichi Noridomi

    IPC: G06K9/00

    CPC classification number: G06T1/005 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32144

    Abstract: Even in the case where a positional misalignment occurs to an embedded digital watermark, accurate detection of watermark information is provided. A digital watermark embedding device includes: a block dividing section (101) for dividing digital data into a plurality of blocks each having a predetermined size; a block selecting section (102) for selecting m blocks (m is an integer no less than 2) from the plurality of the blocks in accordance with a predetermined order; an additional pattern setting section (103) for setting a combination of m additional patterns which are selected from a plurality types of additional patterns, the combination corresponding to one data element to be embedded into the selected m blocks; and an additional pattern embedding section (104) for embedding each of the set additional patterns into each of the selected blocks.

    Abstract translation: 即使在嵌入式数字水印发生位置偏移的情况下，也提供了水印信息的准确检测。 数字水印嵌入装置包括：块分割部（101），用于将数字数据分割成具有预定尺寸的多个块; 用于根据预定顺序从多个块中选择m个块（m是不小于2的整数）的块选择部分（102） 用于设置从多种类型的附加图案中选择的m个附加图案的组合的附加图案设置部分，所述组合对应于要嵌入所选择的m个块中的一个数据元素; 以及附加模式嵌入部分（104），用于将每个所设置的附加模式嵌入每个所选择的块中。

    Digital-watermark-embedding and picture compression unit
    65.
    发明授权
    Digital-watermark-embedding and picture compression unit 有权
    数字水印嵌入和图像压缩单元

    公开(公告)号：US07352877B2

    公开(公告)日：2008-04-01

    申请号：US10620603

    申请日：2003-07-17

    Applicant: Yoshifumi Fujikawa ,  Yukio Fujii ,  Koichi Terada

    Inventor： Yoshifumi Fujikawa ,  Yukio Fujii ,  Koichi Terada

    IPC: G06K9/00

    CPC classification number: G06T1/0057 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061

    Abstract: In order to avoid content deteriorations caused by embedment of a digital watermark into a moving picture, a process to search a picture for a motion and a process to filter a picture for medical care must be carried out, raising a processing cost. It is thus difficult to implement equipment for processing such pictures at a low cost. In a compound apparatus for encoding compressed code of a moving picture by employing a unit for embedding a digital watermark into a picture, a digital-watermark embedment quantity is determined by using a motion vector and a quantization parameter in a process to embed a digital watermark into the picture. It is thus no longer necessary to carry out the process to search a picture for a motion and the process to filter a picture for medical care for embedment of a digital watermark so that the cost of the entire apparatus can be reduced substantially.

    Abstract translation: 为了避免将数字水印嵌入到运动图像中引起的内容恶化，必须执行搜索图片以进行运动的处理和用于过滤用于医疗的图片的处理，从而提高处理成本。 因此难以实现以低成本处理这样的图像的设备。 在通过采用用于将数字水印嵌入图像的单元来编码运动图像的压缩码的复合装置中，在嵌入数字水印的处理中通过使用运动矢量和量化参数来确定数字水印嵌入量 进入图片。 因此，不再需要执行搜索图像以进行运动的处理以及用于过滤用于医疗的图像以用于嵌入数字水印的处理，使得可以显着降低整个装置的成本。

    Image-processing apparatus and method, computer program, and computer-readable storage medium for discouraging illegal copying of images
    68.
    发明授权
    Image-processing apparatus and method, computer program, and computer-readable storage medium for discouraging illegal copying of images 失效
    图像处理装置和方法，计算机程序和用于阻止图像的非法复制的计算机可读存储介质

    公开(公告)号：US07339599B2

    公开(公告)日：2008-03-04

    申请号：US10762038

    申请日：2004-01-20

    Applicant: Junichi Hayashi

    Inventor： Junichi Hayashi

    IPC: G09G5/00 ,  G06K9/00 ,  G06K1/00 ,  G06K15/00

    CPC classification number: G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0061 ,  H04N1/00864 ,  H04N1/00867 ,  H04N1/32203 ,  H04N1/32208

    Abstract: An object of the present invention is to provide a technique by which machines can determine whether printed material is an original or a copy. A technique for outputting printed material which has an effect similar to that of security paper using normal paper instead of specially printed paper such as the security paper is provided. An image-processing apparatus generates a new image by expressing a latent image area with dots of a first dot size and a background area with dots of a second dot size which is different from the first dot size, and generates another image by moving each of the dots included in the latent image area in accordance with a bit value at the corresponding bit position in additional information.

    Abstract translation: 本发明的目的是提供一种技术，通过该技术机器可以确定印刷材料是原件还是复印件。 提供了一种用于输出具有类似于安全纸的效果的打印材料的技术，其使用普通纸而不是诸如安全纸的特殊印刷纸。 图像处理装置通过用与第一点尺寸不同的点的第一点尺寸的点和背景区域的点表示潜像区域来生成新图像，并且通过移动 根据附加信息中的相应位位置处的位值，包含在潜像区域中的点。

    Method, apparatus, and program for image processing capable of preventing, detecting and correcting image alteration, and a medium storing the program
    69.
    发明授权
    Method, apparatus, and program for image processing capable of preventing, detecting and correcting image alteration, and a medium storing the program 有权
    能够防止，检测和校正图像变化的图像处理方法，装置和程序，以及存储程序的介质

    公开(公告)号：US07295679B2

    公开(公告)日：2007-11-13

    申请号：US10858959

    申请日：2004-06-02

    Applicant: Takashi Otsuki

    Inventor： Takashi Otsuki

    IPC: G06K9/00

    CPC classification number: H04N19/184 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0083 ,  H04N1/32213 ,  H04N1/32251 ,  H04N19/467

    Abstract: A method, apparatus, and program for image processing are provided to perform operations for generating an encoded image, detecting image alteration on the encoded image, and regenerating an original image from the encoded image. The encoded image is generated by an encoding apparatus, which inserts a redundant code into an LSB (least significant bit) bit-plane of the original image. The redundant code can be generated based on bit-planes other than the LSB bit-plane, using a CRC (cyclic redundancy check) method. A decoding apparatus recalculates a redundant code from the encoded image, and checks validity of the encoded image based on the extracted redundant code.

    Abstract translation: 提供用于图像处理的方法，装置和程序以执行用于生成编码图像的操作，检测编码图像上的图像变化，以及从编码图像再生原始图像。 编码图像由编码装置产生，该编码装置将冗余码插入到原始图像的LSB（最低有效位）位平面中。 可以使用CRC（循环冗余校验）方法，基于LSB位平面以外的位平面生成冗余码。 解码装置从编码图像重新计算冗余码，并根据提取的冗余码检查编码图像的有效性。

    System and method for adaptive marking and coding of film prints
    70.
    发明授权
    System and method for adaptive marking and coding of film prints 失效
    胶片印刷自适应标记和编码的系统和方法

    公开(公告)号：US07295281B2

    公开(公告)日：2007-11-13

    申请号：US11439859

    申请日：2006-05-24

    Applicant: David Jay Duffield ,  Ion Vizireanu ,  Mike Arthur Derrenberger ,  Yousef Wasef Nijim

    Inventor： David Jay Duffield ,  Ion Vizireanu ,  Mike Arthur Derrenberger ,  Yousef Wasef Nijim

    IPC: G03B19/18 ,  G03B21/32

    CPC classification number: G03C11/02 ,  G03D15/003 ,  G06T1/0071 ,  G06T2201/0051 ,  G06T2201/0061

    Abstract: A system and method for marking, coding and tracking a film print in an efficient, adaptive and customized manner for providing unique and robust identification of each individual film print and for facilitating accurate tracking of the origin of a pirated copy is described herein. A film print to be marked is calibrated and provided in computer-readable form for input to a prescreening device. The calibrated film print is reviewed and ideal locations on each frame of the film print are chosen for applying a mark. A unique coding scheme is generated for each desired print. If a pirate copy is found, all marks are located and a matching serial number (e.g., coding scheme) is determined for the pirated copy based on marks found in the pirate copy when compared to a database storing film print mark information generated during the marking and coding process.

    Abstract translation: 本文描述了一种用于以有效，自适应和定制的方式标记，编码和跟踪胶片印刷的系统和方法，用于提供每个单独的胶版印刷的唯一且鲁棒的识别并且用于促进对盗版拷贝的来源的准确跟踪。 要标记的胶片被校准并以计算机可读形式提供，以便输入到预筛选装置。 评估校准的胶片打印，并选择胶片打印的每个框架上的理想位置来应用标记。 为每个期望的打印生成唯一的编码方案。 如果发现盗版副本，则与存储在标记期间生成的胶片打印标记信息的数据库相比较，基于在盗版副本中找到的标记，确定所有标记位置并且针对盗版副本确定匹配的序列号（例如，编码方案） 和编码过程。

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