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    Embedding data in material
    51.
    发明授权
    Embedding data in material 失效
    将资料嵌入资料

    公开(公告)号：US07088843B2

    公开(公告)日：2006-08-08

    申请号：US10006294

    申请日：2001-12-06

    Applicant: Jason Charles Pelly

    Inventor： Jason Charles Pelly

    IPC: G06K9/00

    CPC classification number: G06T1/005 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0081 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  H04N1/32154 ,  H04N1/3217 ,  H04N1/32347 ,  H04N2201/328

    Abstract: A method of embedding data in material comprises the steps of: embedding data in original material to produce data embedded material; removing the watermark from the data embedded material to produce recovered material; comparing the original and recovered material to determine the differences and locations of differences therebetween; and storing the said locations and corrections which correct the said differences. A method of removing the data embedded in the material, comprises the steps of: removing the data from the material to produce recovered material; deriving the said corrections and locations from the said store; and using the corrections to correct the recovered material at the said locations. A method of embedding data in material, preferably comprises the steps of: producing transform coefficients Ci representing a spatial frequency transform of the material, and combining the coefficients Ci with the data bits Ri to produce a modified coefficient Ci′ where Ci′=Ci+αiRi the method further comprising determining αi for each unmodified coefficient Ci as a function F{Cn}i of a predetermined set {Cn}i of transform coefficients Cn which set excludes the coefficient Ci.

    Abstract translation: 材料中嵌入数据的方法包括以下步骤

    Method for embedding digital information in a three dimensional image from a scannerless range imaging system
    53.
    发明授权
    Method for embedding digital information in a three dimensional image from a scannerless range imaging system 有权
    将数字信息嵌入到来自无扫描仪范围成像系统的三维图像中的方法

    公开(公告)号：US06823076B2

    公开(公告)日：2004-11-23

    申请号：US09910213

    申请日：2001-07-20

    Applicant: Nathan D. Cahill ,  Lawrence A. Ray

    Inventor： Nathan D. Cahill ,  Lawrence A. Ray

    IPC: G06K900

    CPC classification number: G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0203

    Abstract: A scannerless range imaging system employs a technique for embedding digital data into its image output in a manner that allows exact recovery of its associated images. The range imaging system captures (a) a plurality of phase images of reflected modulated illumination, wherein each image incorporates a phase delay term corresponding to the distance of objects in the scene from the range imaging system, together with a phase offset term unique for each image, and (b) at least one intensity image of reflected unmodulated illumination, and then generates an image bundle of associated images including the plurality of phase images and the intensity image. Meta-data is embedded into the image bundle by a) forming a digital message from the meta-data, b) converting the digital message to embedded data, and c) adding the embedded data to each phase image in the image bundle, pixel by pixel, without changing the phase term in each of the phase images, thereby allowing exact reconstruction of range information from the phase images without having to extract the embedded data.

    Abstract translation: 无扫描仪范围成像系统采用将数字数据嵌入到其图像输出中的技术，以允许精确恢复其相关图像的方式。 范围成像系统捕获（a）反射调制照明的多个相位图像，其中每个图像包含对应于距离成像系统的场景中物体的距离的相位延迟项，以及每个图像唯一的相位偏移项 图像和（b）反射未调制照明的至少一个强度图像，然后生成包括多个相位图像和强度图像的相关图像的图像束。 元数据通过以下方式嵌入到图像束中：a）从元数据形成数字消息，b）将数字消息转换为嵌入数据，以及c）将嵌入数据添加到图像束中的每个相位图像，像素通过 像素，而不改变每个相位图像中的相位项，从而允许来自相位图像的范围信息的精确重建，而不必提取嵌入的数据。

    Image processing apparatus and method, computer program, and computer-readable storage medium
    54.
    发明申请
    Image processing apparatus and method, computer program, and computer-readable storage medium 有权
    图像处理装置和方法，计算机程序和计算机可读存储介质

    公开(公告)号：US20040001610A1

    公开(公告)日：2004-01-01

    申请号：US10600582

    申请日：2003-06-23

    Applicant: Canon Kabushiki Kaisha

    Inventor： Tomochika Murakami

    IPC: G06K009/00

    CPC classification number: G06T1/0092 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0083 ,  G06T2201/0203

    Abstract: This invention can multiplex noise in multilevel image data to reversibly embed visible additional information with a noise-multiplexed distribution while maintaining the atmosphere of the multilevel image data subjected to embedding. For this purpose, noise is multiplexed on multilevel image data containing a luminance component as a main component, thereby embedding visible additional information with a noise-multiplexed distribution. At this time, information representing whether or not to multiplex noise for each pixel is input as the additional information. Whether a pixel of interest in the multilevel image data is located at a position where noise is to be multiplexed is determined on the basis of the additional information (S806). When the pixel of interest is determined to be located at the position where noise is to be multiplexed, an embedding amount to be added to the position of the pixel of interest is calculated on the basis of data of a region near the pixel of interest (S810), and is added (S812).

    Abstract translation: 本发明可以对多级图像数据中的噪声进行多路复用，以可逆地嵌入具有噪声多路复用分布的可见附加信息，同时保持经受嵌入的多级图像数据的气氛。 为此，将噪声多路复用在包含亮度分量作为主要成分的多电平图像数据上，从而嵌入具有噪声多路复用分布的可见附加信息。 此时，输入表示是否对每个像素复用噪声的信息作为附加信息。 基于附加信息确定多级图像数据中感兴趣的像素是否位于要复用噪声的位置（S806）。 当感兴趣的像素被确定为位于要复用噪声的位置时，基于感兴趣像素附近的区域的数据计算要添加到感兴趣像素的位置的嵌入量（ S810），并添加（S812）。

    Reversible watermarking
    55.
    发明申请
    Reversible watermarking 有权

    公开(公告)号：US20030149879A1

    公开(公告)日：2003-08-07

    申请号：US10319404

    申请日：2002-12-12

    Inventor： Jun Tian ,  Stephen K. Decker

    IPC: H04L009/00 ,  H04N007/167

    CPC classification number: G10L19/018 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  H04N1/32149 ,  H04N1/32154 ,  H04N1/32187 ,  H04N1/32229 ,  H04N1/32283 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: A reversible watermarking method embeds auxiliary data into a data set, such as an image, audio, video or other data, in a manner that enables full recovery of the original, un-modified data set. This method may be used to determine whether the data set has been tampered. To improve embedding capacity without the need for compression of the auxiliary data, the method uses an expansion technique. One particular approach exploits the correlation or redundancy within the data set to convert the data to a set of small, expandable values, such as difference values. These small values are then expanded by inserting auxiliary data as one or more additional bits, increasing the number of bits without causing an underflow or overflow. This approach also uses a property of the data set that is invariant to the embedding operation to identify embedding locations, obviating the need for separate data to identify where data is embedded in a data set.

    Embedding data in material
    58.
    发明申请
    Embedding data in material 失效
    将资料嵌入资料

    公开(公告)号：US20020118859A1

    公开(公告)日：2002-08-29

    申请号：US10006294

    申请日：2001-12-06

    Inventor： Jonathan James Stone ,  Jason Charles Pelly ,  Stephen Mark Keating

    IPC: G06K009/00

    CPC classification number: G06T1/005 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0081 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  H04N1/32154 ,  H04N1/3217 ,  H04N1/32347 ,  H04N2201/328

    Abstract: A method of embedding data in material comprises the steps of: embedding data in original material to produce data embedded material; removing the watermark from the data embedded material to produce recovered material; comparing the original and recovered material to determine the differences and locations of differences therebetween; and storing the said locations and corrections which correct the said differences. A method of removing the data embedded in the material. comprises the steps of: removing the data from the material to produce recovered material: deriving the said corrections and locations from the said store; and using the corrections to correct the recovered material at the said locations. A method of embedding data in material, preferably comprises the steps of: producing transform coefficients Ci representing a spatial frequency transform of the material, and combining the coefficients Ci with the data bits Ri to produce a modified coefficient Cinull where CinullnullCinullnulli Ri the method further comprising determining nulli for each unmodified coefficient Ci as a function FnullCnnulli of a predetermined set nullCnnulli of transform coefficients Cn which set excludes the coefficient Ci.

    Abstract translation: 将数据嵌入材料的方法包括以下步骤：将数据嵌入到原始材料中以产生数据嵌入材料; 从数据嵌入材料中去除水印以产生回收的材料; 比较原始和回收的材料以确定其间的差异和位置; 并存储所述位置和校正来校正所述差异。 一种删除材料中嵌入的数据的方法。 包括以下步骤：从所述材料中去除所述数据以产生回收的材料：从所述商店导出所述校正和位置; 并使用校正来校正所述位置处的回收材料。 将数据嵌入材料中的方法优选地包括以下步骤：产生表示材料的空间频率变换的变换系数Ci，并将系数Ci与数据位Ri组合以产生修正系数Ci'，其中<段落lv1 =“ 该方法还包括：将每个未修改系数Ci确定为预定集合{Cn的函数F {Cn} i的矩阵 所设置的变换系数Cn的i i不包括系数Ci。

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