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    ELECTRONIC WATERMARK EMBEDDING DEVICE AND ELECTRONIC WATERMARK DETECTION DEVICE
    54.
    发明申请
    ELECTRONIC WATERMARK EMBEDDING DEVICE AND ELECTRONIC WATERMARK DETECTION DEVICE 有权
    电子水印嵌入装置和电子水印检测装置

    公开(公告)号：US20090285442A1

    公开(公告)日：2009-11-19

    申请号：US12066837

    申请日：2006-09-27

    申请人： Koichi Magai ,  Hiroshi Ito ,  Ryousuke Fujii ,  Mitsuyoshi Suzuki ,  Kohtaro Asai ,  Tokumichi Murakami

    发明人： Koichi Magai ,  Hiroshi Ito ,  Ryousuke Fujii ,  Mitsuyoshi Suzuki ,  Kohtaro Asai ,  Tokumichi Murakami

    IPC分类号： G06K9/00

    CPC分类号： G06T1/005 ,  G06T2201/0051 ,  G06T2201/0065 ,  G06T2201/0083 ,  H04N1/32144 ,  H04N1/32203

    摘要： A digital watermark embedding device and a digital watermark detecting device are obtained, which can realize stable digital watermark detection using fewer, and embed and detect a larger amount of digital watermark information with an identical number of pixels used for digital watermark embedding in a conventional technology. The digital watermark embedding device includes: an embedding-information converting unit (103) for converting inputted information to be embedded into a bit string formed of “0's” and “1's” and embedding respective bits of the converted bit string multiple times to output a digital watermark pattern having N −1's or N+1's as elements; an orthogonal-pattern generating unit (105) for generating orthogonal patterns each formed of a combination of elements of −1's and +1's and orthogonal to one another; an integrating unit (109) for integrating each of the orthogonal patterns from the orthogonal-pattern generating unit with each of the elements of the digital watermark pattern from the embedding-information converting unit to generate an embedding pattern; and a digital-watermark embedding unit (107) for embedding pattern from the integrating unit in an input image and outputting an image after embedding information.

    摘要翻译： 获得了一种数字水印嵌入装置和数字水印检测装置，其可以使用较少的数字水印检测来实现稳定的数字水印检测，并且在常规技术中嵌入和检测用于数字水印嵌入的相同数量的像素的较大数量的水印信息 。 数字水印嵌入装置包括：嵌入信息转换单元，用于将要嵌入的输入信息转换成由“0”和“1”形成的比特串，并且多次嵌入转换的比特串的各个比特以输出 具有N-1或N + 1作为元素的数字水印图案; 正交图案生成单元，用于产生各自由-1和+1的元素的组合形成并且彼此正交的正交图案; 积分单元，用于将来自正交图案生成单元的每个正交图案与来自嵌入信息转换单元的数字水印图案的每个元素集成以产生嵌入图案; 以及数字水印嵌入单元，用于将来自所述积分单元的图案嵌入到输入图像中，并且在嵌入信息之后输出图像。

    IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD
    58.
    发明申请
    IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD 审中-公开
    图像编码装置，图像解码装置，图像编码方法和图像解码方法

    公开(公告)号：US20090003449A1

    公开(公告)日：2009-01-01

    申请号：US11929056

    申请日：2007-10-30

    申请人： Shunichi Sekiguchi ,  Shuichi Yamagishi ,  Yoshimi Moriya ,  Yoshihisa Yamada ,  Kohtaro Asai ,  Tokumichi Murakami ,  Yuichi Idehara

    发明人： Shunichi Sekiguchi ,  Shuichi Yamagishi ,  Yoshimi Moriya ,  Yoshihisa Yamada ,  Kohtaro Asai ,  Tokumichi Murakami ,  Yuichi Idehara

    IPC分类号： H04N7/26

    CPC分类号： H04N19/517 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/117 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/436 ,  H04N19/523 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

    摘要： An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation.

    摘要翻译： 一种编码装置，包括用于分离各个颜色分量的输入比特流的颜色分量分离单元，用于将输入颜色分量信号分割成块以产生编码单位区域的信号的块分割单元，用于 产生用于该信号的预测图像;确定单元，用于根据预测图像的预测效率确定用于编码的预测模式;预测误差编码单元，用于对与由所述预测图像确定的预测模式相对应的预测图像之间的差进行编码; 确定单元和输入颜色分量信号，以及用于对预测模式进行可变长度编码的编码单元，来自预测误差编码单元的输出和指示输入比特流所属的颜色分量的颜色分量识别标志为 颜色成分分离的结果。