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公开(公告)号:US06728408B1
公开(公告)日:2004-04-27
申请号:US09144467
申请日:1998-09-01
IPC分类号: G06K900
CPC分类号: G06T1/0021 , G06T2201/0051 , G06T2201/0061 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N2201/3233 , H04N2201/327
摘要: A data embedding method and apparatus and a data reproducing method and apparatus are provided which can apply a digital watermark to various contents. Instead of embedding watermarking information in respective pixels or by using a relation between pixels, the watermarking information is embedded as a position pattern of changed pixels in the contents. Reliability comparable with conventional techniques can be obtained irrespective of a change in a smaller number of pixels for the contents.
摘要翻译: 提供了可以将数字水印应用于各种内容的数据嵌入方法和装置以及数据再现方法和装置。 不是将水印信息嵌入各像素中,或者通过使用像素之间的关系,水印信息被嵌入作为内容中的改变像素的位置图案。 可以获得与常规技术相当的可靠性,而不管内容物的较少数量的像素的变化。
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公开(公告)号:US06826291B2
公开(公告)日:2004-11-30
申请号:US10073010
申请日:2002-02-12
申请人: Hiroshi Yoshiura , Isao Echizen , Junichi Taguchi , Akira Maeda , Takao Arai , Toshifumi Takeuchi
发明人: Hiroshi Yoshiura , Isao Echizen , Junichi Taguchi , Akira Maeda , Takao Arai , Toshifumi Takeuchi
IPC分类号: G06K900
CPC分类号: H04N19/00 , G06T1/0028 , G06T1/005 , G06T1/0071 , G06T2201/0051 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32288 , H04N19/467 , H04N21/23892 , H04N21/8358
摘要: A method of embedding information into contents includes a changeable range calculating step of obtaining a range where value change of the contents is imperceptible to the human being and a step of embedding information by changing the values of the contents within the changeable range.
摘要翻译: 将信息嵌入到内容中的方法包括:可变范围计算步骤,用于获得内容的值改变对人类不了解的范围,以及通过改变可变范围内的内容的值来嵌入信息的步骤。
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公开(公告)号:US06584210B1
公开(公告)日:2003-06-24
申请号:US09274103
申请日:1999-03-23
申请人: Jun′ichi Taguchi , Hiroshi Yoshiura , Isao Echizen , Akira Maeda , Takao Arai , Toshifumi Takeuchi
发明人: Jun′ichi Taguchi , Hiroshi Yoshiura , Isao Echizen , Akira Maeda , Takao Arai , Toshifumi Takeuchi
IPC分类号: G06K900
CPC分类号: G06T1/0028 , G06T2201/0051 , G06T2201/0081 , H04N1/32203 , H04N1/32208 , H04N1/32235 , H04N1/32251
摘要: An image processing apparatus having an adding unit to add information by changing a data value of image data and a detecting unit to detect the information added to the image data. In a digital watermark image processing method in the image processing apparatus, filter passage image data is formed by performing an image filtering process to original image data, watermark core image data is formed by performing a process to obtain a difference between the filter passage image data and the original image data, change amount image data is formed by performing a process to obtain a value to change the data value of the image data on the basis of the watermark core image data and desired information to be added, and watermark inserted image data is formed by performing a process to add the original image data and the change amount image data.
摘要翻译: 一种图像处理装置,具有通过改变图像数据的数据值来添加信息的添加单元和检测附加到图像数据的信息的检测单元。 在图像处理装置中的数字水印图像处理方法中,通过对原始图像数据进行图像滤波处理来形成滤波器通过图像数据,通过执行获得滤波器通过图像数据之间的差异的处理来形成水印核心图像数据 并且通过执行基于水印核心图像数据和期望的要添加的信息来获得改变图像数据的数据值的处理来形成原始图像数据,改变量图像数据,以及水印插入图像数据 通过执行添加原始图像数据和变化量图像数据的处理来形成。
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公开(公告)号:US06711276B1
公开(公告)日:2004-03-23
申请号:US09453578
申请日:1999-12-03
申请人: Hiroshi Yoshiura , Isao Echizen , Takao Arai , Hiroyuki Kimura , Toshifumi Takeuchi , Yoshiaki Moriyama , Kazumi Sugaya , Akira Ogino
发明人: Hiroshi Yoshiura , Isao Echizen , Takao Arai , Hiroyuki Kimura , Toshifumi Takeuchi , Yoshiaki Moriyama , Kazumi Sugaya , Akira Ogino
IPC分类号: G06K900
CPC分类号: G06T1/0085 , G06T1/0028 , G06T2201/0065 , H04N19/467 , H04N19/51 , H04N19/61 , H04N21/23892 , H04N21/8358
摘要: A watermark information embedding method, and apparatus, capable of suppressing the quality degradation of contents and increasing the survivability of embedded information. When embedding watermark information in moving picture data formed of a plurality of still picture frames arranged in time series, a motion vector representing a property specific to moving picture is detected for each of image blocks generated by dividing a target frame. According to a motion quantity, a pixel change factor specifying rule is selected for each block. Out of pixels permitted to be changed in luminance depending upon the state of an image in each block representing a property specific to still picture, as many pixels as a number specified by the selected rule are selected. Luminance change processing for forming watermark information is conducted on the selected pixels.
摘要翻译: 一种水印信息嵌入方法和装置,其能够抑制内容的质量劣化并增加嵌入信息的生存性。 当将水印信息嵌入由以时间序列排列的多个静止图像帧形成的运动图像数据中时,针对通过划分目标帧而产生的每个图像块检测表示运动图像特有的属性的运动矢量。 根据运动量,为每个块选择像素变化因子指定规则。 根据表示静止图像特有的属性的每个块中的图像的状态,亮度允许变化的像素的数量被选择为与所选择的规则指定的数量一样多的像素。 对所选择的像素进行用于形成水印信息的亮度变化处理。
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公开(公告)号:US20110064227A1
公开(公告)日:2011-03-17
申请号:US12840726
申请日:2010-07-21
IPC分类号: H04K1/04
CPC分类号: H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要: A system effecting a data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a descrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译: 一种影响多个设备的数据再现方法的系统,用于通过彼此认证多个设备来发送和接收数据,所述数据再现方法包括:从多个解扰方法中选择对应于类型的解扰方法 的所述数据,通过与所选择的解扰方法相对应的认证方法执行认证,其中从多种认证方法中选择认证方法,并再现所述数据。
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公开(公告)号:US20080109907A1
公开(公告)日:2008-05-08
申请号:US11968883
申请日:2008-01-03
IPC分类号: H04L9/00
CPC分类号: H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要: A data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a scrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译: 一种用于多个设备的数据再现方法,用于通过彼此认证多个设备来发送和接收数据,所述数据再现方法包括:从多个解扰方法中选择与所述数据类型相对应的加扰方法 通过与选择的解扰方法相对应的认证方法执行认证,其中从多种认证方法中选择认证方法,并再现所述数据。
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公开(公告)号:US08311219B2
公开(公告)日:2012-11-13
申请号:US13307110
申请日:2011-11-30
IPC分类号: H04L9/16
CPC分类号: H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要: An authentication method for use in sending/receiving data between a coded data output apparatus for outputting coded data having a water mark, and a recording apparatus for recording data onto a recording medium, the method including: deciding a type of the recording medium used by the recording apparatus; based on a result of the deciding, selecting, from a plurality of authentication methods, an authentication method corresponding to the type of the recording medium, and conducting authentication between the coded data output apparatus and the recording apparatus, using the authentication method; sending/receiving data between the coded data output apparatus and the recording apparatus after conducting the authentication; and in a case where the coded data has the water mark, detecting the water mark by the coded data output apparatus, wherein the data exchanged between the coded data output apparatus and the recording apparatus is scrambled by a scrambling method corresponding to the type the recording medium.
摘要翻译: 一种用于在用于输出具有水印的编码数据的编码数据输出装置和用于将数据记录到记录介质上的记录装置之间发送/接收数据的认证方法,所述方法包括:确定使用的记录介质的类型, 记录装置; 基于从多种认证方法中选择与记录介质的种类相对应的认证方法,使用认证方法进行编码数据输出装置与记录装置之间的认证的结果; 在进行认证之后,在编码数据输出装置与记录装置之间发送/接收数据; 并且在编码数据具有水印的情况下,通过编码数据输出装置检测水印,其中在编码数据输出装置和记录装置之间交换的数据通过与记录类型相对应的加扰方法进行加扰 中。
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公开(公告)号:US07779256B2
公开(公告)日:2010-08-17
申请号:US11968883
申请日:2008-01-03
IPC分类号: H04L9/16
CPC分类号: H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要: A data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a scrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译: 一种用于多个设备的数据再现方法,用于通过彼此认证多个设备来发送和接收数据,所述数据再现方法包括:从多个解扰方法中选择与所述数据类型相对应的加扰方法 通过与选择的解扰方法相对应的认证方法执行认证,其中从多种认证方法中选择认证方法,并再现所述数据。
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公开(公告)号:US08074071B2
公开(公告)日:2011-12-06
申请号:US12840726
申请日:2010-07-21
IPC分类号: H04L9/16
CPC分类号: H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要: A system effecting a data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a descrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译: 一种影响多个设备的数据再现方法的系统,用于通过彼此认证多个设备来发送和接收数据,所述数据再现方法包括:从多个解扰方法中选择对应于类型的解扰方法 的所述数据,通过与所选择的解扰方法相对应的认证方法执行认证,其中从多种认证方法中选择认证方法,并再现所述数据。
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公开(公告)号:US07379547B2
公开(公告)日:2008-05-27
申请号:US10677359
申请日:2003-10-03
IPC分类号: H04L9/16
CPC分类号: H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要: A reproducing method and apparatus for receiving and reproducing data and outputting the data into an external device. After reproducing the data, a descrambler corresponding to a type of the reproduced data is selected from a plurality of descramblers and the external device is authenticated by a selected authenticator which is included in a plurality of authenticators for authenticating the external device and corresponds to the selected descrambler, and the data is outputted.
摘要翻译: 一种用于接收和再现数据并将数据输出到外部设备的再现方法和装置。 在再现数据之后,从多个解扰器中选择对应于再现数据类型的解扰器,并且外部设备由包括在多个认证器中的选择认证器进行认证,用于认证外部设备并对应于所选择的 解扰器,并输出数据。
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