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    Steganalysis of suspect media
    31.
    发明授权
    Steganalysis of suspect media 有权
    嫌疑媒体的分析

    公开(公告)号：US08281138B2

    公开(公告)日：2012-10-02

    申请号：US12422677

    申请日：2009-04-13

    Applicant: Yun-Qing Shi ,  Bin Li

    Inventor： Yun-Qing Shi ,  Bin Li

    IPC: H04L9/32

    CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0201

    Abstract: Techniques described herein are generally related to steganalysis of suspect media. Steganalysis techniques may include receiving instances of suspect media as input for steganalytic processing. A first set of quantized blocks of data elements may be identified within the media, with this first set of blocks being eligible to be embedded with steganographic data. A second set of quantized blocks of data elements may be identified within the media, with this second set of blocks being ineligible to be embedded with steganographic data. The steganalysis techniques may requantize the first and second blocks. In turn, these techniques may compare statistics resulting from requantizing the first block with statistics resulting from requantizing the second block. The steganalysis techniques may then assess whether the first block of data elements is embedded with steganographic features based on how the statistics of the second blocks compare with the statistics of the first blocks.

    Abstract translation: 本文描述的技术通常涉及可疑介质的隐写分析。 隐匿分析技术可以包括接收可疑媒体的实例作为隐写处理的输入。 可以在媒体内识别数据元素的第一组量化块，其中该第一组块有资格嵌入隐写数据。 可以在媒体内识别第二组数据元素的量化块，其中第二组块不符合隐写数据​​的嵌入。 隐写分析技术可以重新调整第一和第二块。 反过来，这些技术可以将从重新量化第一个块得到的统计数据与由再量化第二个块产生的统计数据进行比较。 隐写分析技术可以基于第二块的统计数据如何与第一块的统计量进行比较来评估第一块数据元素是否嵌入隐写特征。

    INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD
    32.
    发明申请
    INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD 有权
    信息处理设备和信息处理方法

    公开(公告)号：US20100135526A1

    公开(公告)日：2010-06-03

    申请号：US12624293

    申请日：2009-11-23

    Applicant: Junichi Hayashi ,  Yoshiharu Imamoto ,  Nobuhiro Tagashira ,  Kazuya Kishi ,  Yasuhiro Nakamoto ,  Kazuomi Oishi

    Inventor： Junichi Hayashi ,  Yoshiharu Imamoto ,  Nobuhiro Tagashira ,  Kazuya Kishi ,  Yasuhiro Nakamoto ,  Kazuomi Oishi

    IPC: G06K9/00 ,  G06K9/46

    CPC classification number: G06T1/0028 ,  G06T1/0064 ,  G06T2201/0201

    Abstract: This invention provides a technique of preventing determination of image alteration when digital image data has undergone, e.g., rotation without any substantial change in contents. To do this, an area separation processing unit separates image data into areas. For each of the separated areas, an area feature value calculator calculates an area feature value independent of the coordinate information of the image. An area order sorter sorts the separated areas in accordance with the calculated area feature values. A validation data generation processing unit generates validation data based on the sort result.

    Abstract translation: 本发明提供了当数字图像数据经历例如旋转而没有任何实质内容改变时防止图像变化的确定的技术。 为此，区域分离处理单元将图像数据分离成区域。 对于每个分离区域，区域特征值计算器计算与图像的坐标信息无关的区域特征值。 区域排序排序器根据计算的区域特征值对分离的区域进行排序。 验证数据生成处理单元基于分类结果生成验证数据。

    Digital data false alteration detection program and digital data false alteration detection appatatus
    34.
    发明申请
    Digital data false alteration detection program and digital data false alteration detection appatatus 有权
    数字数据虚假变更检测程序和数字数据虚假变更检测应用程序

    公开(公告)号：US20050177737A1

    公开(公告)日：2005-08-11

    申请号：US10497236

    申请日：2002-12-03

    Applicant: Naoto Takeda ,  Masamichi Taniguchi ,  Kunio Taniguchi ,  Kiyotaka Yamamoto

    Inventor： Naoto Takeda ,  Masamichi Taniguchi ,  Kunio Taniguchi ,  Kiyotaka Yamamoto

    IPC: H04N1/40 ,  G06T7/00 ,  H04L9/32 ,  H04N1/387

    CPC classification number: G06T1/0021 ,  G06T2201/0201

    Abstract: A digital data false alteration detection program causes a computer to execute (a) a step (S1) of dividing digital data into a plurality of smaller block data, (b) a step (S2) of extracting noise inherent to a digital data acquisition device for each of the small block data, (c) a step (S3) of calculating correlation of the noise between adjacent small block data, and (d) a step (S4) of detecting small block data having noise correlation lower than a level predetermined for the surrounding small block data, as falsely altered data.

    Abstract translation: 数字数据虚假变更检测程序使计算机执行（a）将数字数据分割为多个较小块数据的步骤（S1），（b）提取数字数据固有的噪声的步骤（S2） （c）计算相邻小块数据之间的噪声的相关性的步骤（S 3），以及（d）检测具有噪声相关性的小块数据的步骤（S 4） 比对于周围的小块数据预定的水平，作为错误地改变的数据。

    Method and apparatus for image identification and comparison
    35.
    发明申请
    Method and apparatus for image identification and comparison 审中-公开
    用于图像识别和比较的方法和装置

    公开(公告)号：US20040190794A1

    公开(公告)日：2004-09-30

    申请号：US10653608

    申请日：2003-09-02

    Inventor： Ken Belanger

    IPC: G06K009/54 ,  G06K009/00

    CPC classification number: G06K9/6212 ,  G06F16/5838 ,  G06K9/4652 ,  G06T7/90 ,  G06T2201/0201 ,  G06T2207/10024

    Abstract: A method and apparatus are provided for analyzing, identifying, and comparing images. The method can be used with any visually-displayed medium that is represented in any type of color space. An identified image can be authenticated, registered, marked, compared to another image, or recognized using the method and apparatus according to the present invention. At least one characteristic of an image's color space is selected and determined to generate a unique description of the image. This identification information is then used to compare different identified images to determine if they are identical according to a set of predetermined criteria. The predetermined criteria can be adjusted to permit the identification of images that are identical in part. In the preferred embodiment of the present invention, a software search application, such as a search engine or a spider, is used to locate and retrieve an image to be identified from an electronic network. A notification alarm is triggered when a duplicate image is located. In one embodiment, the present invention is implemented using a computer. One or more software applications, software modules, firmware, and hardware, or any combination thereof, are used to determine the identification information for the selected image characteristics, search for images, provide notification of identical images, and to generate a database of identified images.

    Abstract translation: 提供了一种用于分析，识别和比较图像的方法和装置。 该方法可以与在任何类型的颜色空间中表示的任何视觉显示介质一起使用。 识别的图像可以被认证，注册，标记，与另一图像相比较，或者使用根据本发明的方法和装置识别。 选择和确定图像的颜色空间的至少一个特征以产生图像的唯一描述。 然后，该识别信息用于比较不同的识别图像，以根据一组预定标准确定它们是否相同。 可以调整预定标准以允许识别部分相同的图像。 在本发明的优选实施例中，使用诸如搜索引擎或蜘蛛的软件搜索应用来定位和检索要从电子网络识别的图像。 当找到重复的图像时，触发通知报警。 在一个实施例中，使用计算机来实现本发明。 使用一个或多个软件应用程序，软件模块，固件和硬件，或其任何组合来确定所选图像特征的识别信息，搜索图像，提供相同图像的通知，以及生成识别图像的数据库 。

    Image processing apparatus and method therefor
    37.
    发明授权
    Image processing apparatus and method therefor 有权

    公开(公告)号：US09805433B2

    公开(公告)日：2017-10-31

    申请号：US14298151

    申请日：2014-06-06

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Ayuta Kawazu

    IPC: G06T1/00

    CPC classification number: G06T1/0028 ,  G06T2201/0201

    Abstract: An area where development processing is irregular in imaging data are detected as an irregularity area. At least two areas having approximate feature amounts in the imaging data are detected as approximate areas. An altered region in the imaging data is specified from the approximate areas based on the irregularity area and the approximate areas.

    RICH FEATURE MINING TO COMBAT ANTI-FORENSICS AND DETECT JPEG DOWN-RECOMPRESSION AND INPAINTING FORGERY ON THE SAME QUANTIZATION
    40.
    发明申请
    RICH FEATURE MINING TO COMBAT ANTI-FORENSICS AND DETECT JPEG DOWN-RECOMPRESSION AND INPAINTING FORGERY ON THE SAME QUANTIZATION 有权
    丰富的特征采矿来组合防伪和检测JPEG下恢复和在同一数量上强化伪造

    公开(公告)号：US20160132985A1

    公开(公告)日：2016-05-12

    申请号：US14735921

    申请日：2015-06-10

    Applicant: Sam Houston State University

    Inventor： Qingzhong Liu

    IPC: G06T1/00 ,  G06T7/40 ,  G06K9/62 ,  G06T7/00

    CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0081 ,  G06T2201/0201

    Abstract: A method of detecting tampering in a compressed digital image includes extracting one or more neighboring joint density features from a digital image under scrutiny and extracting one or more neighboring joint density features from an original digital image. The digital image under scrutiny and the original digital image are decompressed into a spatial domain. Tampering in the digital image under scrutiny is detected based on at least one difference in a neighboring joint density feature of the digital image under scrutiny and a neighboring joint density feature of the original image. In some embodiments, detecting tampering in the digital image under scrutiny includes detecting down-recompression of at least a portion of the digital image. In some embodiments, detecting tampering in the digital image includes detecting inpainting forgery in the same quantization.

    Abstract translation: 检测压缩数字图像中的篡改的方法包括从仔细检查的数字图像中提取一个或多个相邻关节密度特征，并从原始数字图像提取一个或多个相邻关节密度特征。 经审查的数字图像和原始数字图像被解压缩成空间域。 基于仔细检查的数字图像的相邻关节密度特征和原始图像的相邻关节密度特征中的至少一个差异来检测在检查中的数字图像中的篡改。 在一些实施例中，检测数字图像中的篡改包括检测数字图像的至少一部分的下压缩。 在一些实施例中，检测数字图像中的篡改包括在相同的量化中检测伪像伪造。

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