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    Image processing apparatus, image processing methods, and storage media
    4.
    发明公开
    Image processing apparatus, image processing methods, and storage media 有权
    Bildverarbeitungsgerätund -verfahren und Speichermedium

    公开(公告)号：EP1059606A2

    公开(公告)日：2000-12-13

    申请号：EP00304811.3

    申请日：2000-06-07

    申请人： SONY CORPORATION

    发明人： Kondo, Tetsujiro ,  Kobayashi, Naoki

    IPC分类号： G06T1/00

    CPC分类号： G06T1/0035 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0203

    摘要： An image processing apparatus embeds information into image data without an overhead. The image processing apparatus includes a selection unit (41) for selecting some of the pixels forming the image data. A changing unit (42) embeds the information into the pixels selected by the selection unit (41) by swapping the bits of the values of the selected pixels according to the information.

    摘要翻译： 图像处理装置将信息嵌入到图像数据中，而不会产生开销。 图像处理装置包括用于选择形成图像数据的一些像素的选择单元（41）。 改变单元（42）通过根据该信息交换所选择的像素的值的位，将信息嵌入到由选择单元（41）选择的像素中。

    MARKER GENERATION PROGRAM, RESTORATION PROGRAM, MARKER GENERATION DEVICE, RESTORATION DEVICE, AND MARKER GENERATION METHOD
    5.
    发明公开
    MARKER GENERATION PROGRAM, RESTORATION PROGRAM, MARKER GENERATION DEVICE, RESTORATION DEVICE, AND MARKER GENERATION METHOD 有权
    MARK生产方案恢复程序打标发电装置，回收装置及标记的制造工艺

    公开(公告)号：EP2410727A1

    公开(公告)日：2012-01-25

    申请号：EP09841883.3

    申请日：2009-03-19

    申请人： Fujitsu Limited

    发明人： TAKAHASHI, Jun ,  NAKAGATA, Shohei ,  KURAKI, Kensuke ,  ANAN, Taizo

    IPC分类号： H04N1/387 ,  G06T1/00

    CPC分类号： H04N1/4486 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0203

    摘要： When creating a marker, an encryption apparatus extracts each pixel value in a region and allows a storing unit to save, as restoration information, the high-order bits of each extracted pixel value. Then, the encryption apparatus creates a marker by changing the high-order bits of the pixel value in a region in which the marker is created and embeds encrypted information in an encrypted region specified by the marker. When decoding the encrypted information, a decoding apparatus detects the marker from a digital image, decodes the encrypted information in the encrypted region specified by the maker, and overwrites bits contained in the restoration information with the high-order bits of the pixel value of the marker.

    摘要翻译： 当创建加密装置的标记的区域中提取每个像素值与一个允许存储单元保存，作为恢复信息，提取的每个像素值的高位比特。 然后，加密装置通过改变像素值的高阶位在其中生成的标记和嵌入加密的信息在由上述标志指定的加密区域的区域创建的标记。 当解码被加密的信息，解码装置检测从数字图像中的标记，在由制造商指定的加密区域的加密信息进行解码，并且将覆盖包含在与的像素值的高位比特的恢复信息比特 标记。

    Method for embedding digital information in a three dimensional image from a scannerless range imaging system
    7.
    发明公开
    Method for embedding digital information in a three dimensional image from a scannerless range imaging system 审中-公开
    从一系列成像系统嵌入在三维图像而没有扫描仪的数字信息

    公开(公告)号：EP1280104A3

    公开(公告)日：2006-02-15

    申请号：EP02077807.2

    申请日：2002-07-12

    申请人： EASTMAN KODAK COMPANY

    发明人： Cahill,Nathan David Eastman Kodak Company ,  Ray, Lawrence Allen, Eastman Kodak Company

    IPC分类号： G06T1/00 ,  H04N1/387

    CPC分类号： G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0203

    摘要： 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.

    Embedding data in material
    8.
    发明公开
    Embedding data in material 审中-公开
    数据材料嵌入

    公开(公告)号：EP1220152A3

    公开(公告)日：2004-11-24

    申请号：EP01310111.8

    申请日：2001-12-03

    申请人： SONY UNITED KINGDOM LIMITED

    发明人： Pelly, Jason Charles ,  Tapson, Daniel ,  Keating, Stephen Mark

    IPC分类号： G06T1/00

    CPC分类号： G06T1/005 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0203 ,  H04N1/32154 ,  H04N1/3217

    摘要： A spatial domain image I produced by a source 1 is combined with watermark data Ri to produce a spatial domain watermarked image I'. The watermarked image is produced by an embedder 3 according to the equationCi'=Ci + α. Ri where Ci and Ci' are wavelet transform coefficients of the image, and α is a scaling factor, α is chosen so that the watermark is imperceptible in the image and to resist removal of the watermark by unauthorised processing. It is desirable that α has the smallest value which achieves that. If α is too big the watermark is perceptible in the image; if it is too small the mark may not survive processing of the image. α is determined from a trial decoding of the image I in a decoder 4. The decoding is that which would be used to decode the watermarked image I'. A value α' is produced by a calculator S3-S8, to which an offset value is added by an adder S9 to produce α. This produces values of α over the image, which are used to scale the data Ri so as to conceal the data. An image is one example of material to which the invention is applicable. The step of producing modified coefficient values C i may not use coefficients of magnitude greater than a threshold T and does not use corresponding information symbols R i . Alternatively, a threshold T clip may be set. The scaling factor α is calculated using clipped coefficient values and coefficients C i of magnitude less than T clip .

    Embedding data in material
    9.
    发明公开
    Embedding data in material 审中-公开
    在Werkstoff的Dateneinbettung

    公开(公告)号：EP1220152A2

    公开(公告)日：2002-07-03

    申请号：EP01310111.8

    申请日：2001-12-03

    申请人： SONY UNITED KINGDOM LIMITED

    发明人： Pelly, Jason Charles ,  Tapson, Daniel ,  Keating, Stephen Mark

    IPC分类号： G06T1/00

    CPC分类号： G06T1/005 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0203 ,  H04N1/32154 ,  H04N1/3217

    摘要： A spatial domain image I produced by a source 1 is combined with watermark data Ri to produce a spatial domain watermarked image I'. The watermarked image is produced by an embedder 3 according to the equation Ci'=Ci + α. Ri

    where Ci and Ci' are wavelet transform coefficients of the image, and α is a scaling factor, α is chosen so that the watermark is imperceptible in the image and to resist removal of the watermark by unauthorised processing. It is desirable that α has the smallest value which achieves that. If α is too big the watermark is perceptible in the image; if it is too small the mark may not survive processing of the image.
    α is determined from a trial decoding of the image I in a decoder 4. The decoding is that which would be used to decode the watermarked image I'. A value α' is produced by a calculator S3-S8, to which an offset value is added by an adder S9 to produce α. This produces values of α over the image, which are used to scale the data Ri so as to conceal the data. An image is one example of material to which the invention is applicable.

    The step of producing modified coefficient values C i may not use coefficients of magnitude greater than a threshold T and does not use corresponding information symbols R i . Alternatively, a threshold T clip may be set. The scaling factor α is calculated using clipped coefficient values and coefficients C i of magnitude less than T clip .

    摘要翻译： 由源1产生的空间域图像I与水印数据Ri组合以产生空间域水印图像I'。 水印图像由嵌入器3根据等式 Ci'= Ci +α产生。 其中Ci和Ci'是图像的小波变换系数，α是缩放因子，选择α，使得水印在图像中不可察觉，并且通过未经授权的处理来抵抗水印的去除。 期望α具有实现该值的最小值。 如果alpha太大，则水印在图像中是可感知的; 如果太小，标记可能无法在图像的处理中生存。 从解码器4中的图像I的试用解码确定α。解码是将用于解码水印图像I'的解码。 由计算器S3-S8产生值α'，由加法器S9将偏移值相加，以产生α。 这产生了图像上的α值，其用于缩放数据Ri以隐藏数据。 图像是本发明可应用的材料的一个示例。 产生修正系数值Ci的步骤可以不使用大于阈值T的幅度系数，并且不使用对应的信息符号Ri。 或者，可以设置阈值Tclip。 使用剪切系数值和小于Tclip的幅度系数Ci计算缩放因子α。