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11. 发明申请

US20070127769A1 Information embedding device, information reading device, and recording media with recorded computer-readable program thereof 有权
标题翻译：信息嵌入装置，信息读取装置和具有记录的计算机可读程序的记录媒体
公开(公告)号：US20070127769A1
公开(公告)日：2007-06-07
申请号：US10558923
申请日：2004-08-18
申请人： Hisashi Inoue , Masataka Ejima , Kenichi Noridomi , Takashi Katsura , Shugo Horikami
发明人： Hisashi Inoue , Masataka Ejima , Kenichi Noridomi , Takashi Katsura , Shugo Horikami
IPC分类号： G06K9/00
CPC分类号： G06T1/0064 , G06T2201/0051
摘要： Information embedding is performed by extracting vertices composing a polygon from vector data, and changing the number of points that exist on the sides of the polygon based on the embedment information. Information reading is performed by extracting points existing on the sides of the polygon from the embedment information embedded vector data, and reading the embedment information according to the predetermined rule.
摘要翻译：通过从矢量数据中提取构成多边形的顶点，根据嵌入信息来改变存在于多边形的边的点数来进行信息嵌入。通过从嵌入信息嵌入向量数据中提取存在于多边形的侧面的点来执行信息读取，并且根据预定规则读取嵌入信息。

12. 发明授权

US07187782B2 Digital watermark-embedding apparatus, digital watermark-embedding method, and recording medium having recoded therein a program for performing the digital watermark-embedding method 有权
标题翻译：数字水印嵌入装置，数字水印嵌入方法以及在其中重新编码用于执行数字水印嵌入方法的程序的记录介质
公开(公告)号：US07187782B2
公开(公告)日：2007-03-06
申请号：US10392192
申请日：2003-03-20
申请人： Hisashi Inoue , Kenichi Noridomi , Takashi Katsura
发明人： Hisashi Inoue , Kenichi Noridomi , Takashi Katsura
IPC分类号： G06K9/00 , G06K9/36 , G06K9/46
CPC分类号： G06T1/0028 , G06T2201/0051 , G06T2201/0053 , G06T2201/0061
摘要： An input image is divided into local regions, each of which is formed by a macro block. An embedment intensity is determined for each of the local regions by using a calculated characteristic amount and a compression bit rate. Digital watermarks are embedded at the determined embedment intensity into the input image at each of the local regions thereof. The input image is encoded, thereby providing a compressed bit stream that has the digital watermarks embedded therein.
摘要翻译：输入图像被分成局部区域，每个区域由宏块形成。通过使用计算的特征量和压缩比特率，为每个局部区域确定嵌入强度。将数字水印以确定的嵌入强度嵌入到其每个局部区域的输入图像中。对输入图像进行编码，从而提供嵌入其中的数字水印的压缩比特流。

13. 发明授权

US07142692B2 Reproduction equipment, reproduction equipment specifying equipment, reproduction equipment specifying system and methods and recording media for said equipment and system 有权
公开(公告)号：US07142692B2
公开(公告)日：2006-11-28
申请号：US09941931
申请日：2001-08-29
申请人： Koji Arimura , Hisashi Inoue , Kenichi Noridomi , Takashi Katsura , Shinya Kadono , Kazuhiko Nakamura
发明人： Koji Arimura , Hisashi Inoue , Kenichi Noridomi , Takashi Katsura , Shinya Kadono , Kazuhiko Nakamura
IPC分类号： G06K9/00
CPC分类号： H04N21/4331 , H04N5/913 , H04N7/1675 , H04N2005/91335
摘要： A reproduction equipment converts an identification code of the reproduction equipment into a plurality of signal sequences using a correspondence table and embeds the obtained plurality of signal sequences in AV signals as a digital watermark. A reproduction equipment specifying equipment compares correlation values of the AV signals, containing the digital watermark embedded therein with all signal sequences contained in a correspondence table. A comparison of the correlation values with a previously set threshold value determines the embedded signal sequences and the identification code of the reproduction equipment which may be extracted.

14. 发明授权

US06788821B2 Digital information embedding/extracting apparatus and method, and medium including a program for executing the method recorded thereon 有权
标题翻译：数字信息嵌入/提取装置和方法，以及包括用于执行记录在其上的方法的程序的介质
公开(公告)号：US06788821B2
公开(公告)日：2004-09-07
申请号：US09879136
申请日：2001-06-13
申请人： Hisashi Inoue , Takashi Katsura
发明人： Hisashi Inoue , Takashi Katsura
IPC分类号： G06K946
CPC分类号： G06T1/0028 , G06T2201/0052 , G06T2201/0061 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32176 , H04N1/32277
摘要： In an embedding apparatus, a transform section divides an original image into a plurality of blocks to perform orthogonal transform every block. An embedding section embeds a pseudo-random number sequence mapped with inherent digital information in part of a transform coefficients sequence obtained by the orthogonal transform using a weight sequence. In an extracting apparatus, a calculation section reads transform coefficients sequences for respective blocks from the data including the pseudo-random number sequence embedded therein in a predetermined order, and calculates an inner product between the transform coefficients sequences and a pseudo-random number sequence. A determination section determines that the pseudo-random number sequence has been embedded when the inner product is greater than a predetermined threshold value. A generation section extracts inherent digital information mapped with the determined pseudo-random number sequence. This method discourages deciphering of the digital information, suppresses image quality deterioration, and improves the detection rate of watermark data.
摘要翻译：在嵌入装置中，变换部将原始图像分割为多个块，对每个块进行正交变换。嵌入部分使用加权序列将通过正交变换获得的变换系数序列的一部分嵌入与固有数字信息映射的伪随机数序列。在提取装置中，计算部分按照预定顺序从包含嵌入其中的伪随机数序列的数据读取各个块的变换系数序列，并计算变换系数序列与伪随机数序列之间的内积。当内积大于预定阈值时，确定部分确定伪随机数序列已被嵌入。生成部分提取用确定的伪随机数序列映射的固有数字信息。该方法阻止数字信息的解密，抑制图像质量恶化，提高水印数据的检测率。

15. 发明授权

US06477276B1 Apparatus for and method of embedding and extracting digital information and medium having program for carrying out the method recorded thereon 失效
标题翻译：用于嵌入和提取数字信息的装置和方法以及具有用于执行记录在其上的方法的程序的介质
公开(公告)号：US06477276B1
公开(公告)日：2002-11-05
申请号：US09186375
申请日：1998-11-05
申请人： Hisashi Inoue , Shiro Iwasaki , Mikio Shimazu , Shuichi Ojima , Takashi Katsura , Akio Miyazaki , Eiichi Hatae
发明人： Hisashi Inoue , Shiro Iwasaki , Mikio Shimazu , Shuichi Ojima , Takashi Katsura , Akio Miyazaki , Eiichi Hatae
IPC分类号： G06K936
CPC分类号： H04N19/645 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0065 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32176 , H04N1/32187 , H04N1/32277 , H04N2201/3233 , H04N2201/327
摘要： An apparatus for embedding information in a signal includes a band dividing device, a block divider, a quantization portion, a signal replacement portion, a mean difference addition portion, a mean calculation portion, and a band synthesis portion. The band dividing device divides the signal into transform coefficients over a plurality of frequency bands. The block divider divides one frequency band into a plurality of blocks in accordance with a previously determined block size. The quantization portion calculates for each block, a mean value M of the transform coefficients in the block, and subjects the mean value M to linear quantization, using a previously determined quantization step-size Q to calculate a quantization value. The signal replacement portion replaces the quantization value for each block, on the basis of the quantization value and the value of the information to be embedded. The mean difference addition portion subjects the replaced quantization value, for each block, to inverse linear quantization using the quantization step-size Q to calculate a mean value M′, and adds a difference DM between the mean value M′ and the mean value M to all the transform coefficients in the block. The mean calculation portion calculates a mean value LM of the transform coefficients in the frequency band after the addition of the difference DM. The band synthesis portion reconstructs a signal in which the information has been embedded using the frequency band after the addition of the difference DM and the other frequency bands.
摘要翻译：用于在信号中嵌入信息的装置包括带分割装置，块分割器，量化部分，信号替换部分，平均差加法部分，平均计算部分和频带合成部分。频带划分装置将信号划分成多个频带的变换系数。块分割器根据先前确定的块大小将一个频带划分成多个块。量化部分针对每个块计算块中的变换系数的平均值M，并使用预先确定的量化步长Q对平均值M进行线性量化，以计算量化值。信号替换部分基于量化值和要嵌入的信息的值替换每个块的量化值。平均差分加法部分使用量化步长Q对每个块对替换的量化值进行逆线性量化，以计算平均值M'，并将平均值M'和平均值M 到块中的所有变换系数。平均计算部分计算差DM之后的频带中的变换系数的平均值LM。频带合成部分在添加差分DM和其他频带之后，使用频带重建信息已被嵌入的信号。

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