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1.发明公开
公开(公告)号：EP1139660A9
公开(公告)日：2002-03-20
申请号：EP98955969
申请日：1998-11-25
Applicant: IBM
Inventor： KAMIJO KOICHI , SHIMIZU SHUICHI , MORIMOTO NORISHIGE
CPC classification number: G06T1/0035 , G06T2201/0052 , G06T2201/0053 , H04N7/24 , H04N19/467 , H04N21/23892 , H04N21/8358
Abstract: An intra-block of the I-frame or P,B-frame is detected from an MPEG stream. When it is detected, one macro block of data is taken out from the MPEG stream and buffered. The buffered macro block is embedded with a pattern so that the length of the VLC may be invariant. The macro block embedded with a pattern is returned back to the MPEG stream. More specifically, the DC component is detected from the buffered macro block and a pseudo-random number is generated in order to generate a pattern to be embedded. It is judged whether or not the bit length of the DC component is invariant when the generated pattern is embedded. If the bit length is invariant, the pattern is embedded in the buffered macro block. When the bit length is varied, it is judged whether or not half of the pattern can be embedded. If possible, the pattern is embedded.
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公开(公告)号：WO9749235A8
公开(公告)日：2001-07-26
申请号：PCT/JP9700395
申请日：1997-02-13
Inventor： NUMAO MASAYUKI , SHIMIZU SHUICHI , MORIMOTO NORISHIGE , KOBAYASHI MEI
CPC classification number: H04N1/32203 , G06T1/0021 , G06T2201/0051 , G06T2201/0061 , G09C5/00 , H04N1/32208 , H04N1/32251 , H04N1/32309 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
Abstract: A data hiding method for hiding message data in media data and a data extracting method for extracting message data hidden in the media data. In the data hiding method, the message data are dispersedly hidden in the media data so that no third person can alter the message data. Specifically, the array elements of a message array are dispersedly hidden in a media array based on a status value S designating a specific array element in the media array when the media data and message data are expressed as the media array and the message array, respectively. The hiding method includes (a) a step of determining the j-th (j>/=0) status value Sj, (b) a step of determining the (j+1)-th status value Sj+1 based on the value Sj, the array element of the media array designated by the value Sj and the above-mentioned array element of the message array, and (c) a step of hiding data to be hidden in the array element of the media array designated by the value Sj+1.
Abstract translation: 用于在媒体数据中隐藏消息数据的数据隐藏方法和用于提取隐藏在媒体数据中的消息数据的数据提取方法。 在数据隐藏方法中，消息数据被分散地隐藏在媒体数据中，使得没有第三人可以改变消息数据。 具体地说，当媒体数据和消息数据被分别表示为媒体数组和消息数组时，消息数组的数组元素基于指定媒体阵列中的特定数组元素的状态值S而被分散地隐藏在媒体数组中 。 隐藏方法包括（a）确定第j（j> / = 0）状态值Sj的步骤，（b）基于该值确定第（j + 1）状态值Sj + 1的步骤 Sj，由值Sj指定的媒体阵列的数组元素和消息数组的上述数组元素，以及（c）隐藏要由值指定的媒体阵列的数组元素中隐藏的数据的步骤 SJ + 1。
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公开(公告)号：EP0852441A4
公开(公告)日：2003-01-15
申请号：EP97902686
申请日：1997-02-13
Applicant: IBM
Inventor： SHIMIZU SHUICHI , MORIMOTO NORISHIGE , KOBAYASHI MEI
CPC classification number: H04N1/32203 , G06T1/0021 , G06T2201/0051 , G06T2201/0061 , G09C5/00 , H04N1/32208 , H04N1/32251 , H04N1/32309 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
Abstract: A data hiding method for hiding message data in media data and a data extracting method for extracting message data hidden in the media data. In the data hiding method, the message data are dispersedly hidden in the media data so that no third person can alter the message data. Specifically, the array elements of a message array are dispersedly hidden in a media array based on a status value S designating a specific array element in the media array when the media data and message data are expressed as the media array and the message array, respectively. The hiding method includes (a) a step of determining the j-th (j≥0) status value Sj, (b) a step of determining the (j+1)-th status value Sj+1 based on the value Sj, the array element of the media array designated by the value Sj and the above-mentioned array element of the message array, and (c) a step of hiding data to be hidden in the array element of the media array designated by the value Sj+1.
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4.发明公开
公开(公告)号：EP0935392A4
公开(公告)日：2001-04-18
申请号：EP97902687
申请日：1997-02-13
Applicant: IBM
Inventor： MORIMOTO NORISHIGE , MAEDA JUNJI
CPC classification number: G06T1/0085 , H04N19/00 , H04N19/467 , H04N21/23892 , H04N21/8358
Abstract: A method of hiding message information in media information in a frequency space. A high resistance to removal and alteration of hidden message is given. Even when signal processing is executed by using a frequency filter, the hidden message information is continuously maintained effectively. The frequency spectra (f1 and f2) of the medium information (M) and message information (m) are found by frequency-converting the information (m) and the information (M) in order to hide the message information (m) in media information (M). Then an area containing a characteristic frequency component indicating the feature of the message information (m) in a real space is extracted from the frequency spectrum (f2) of the message information (m) as a basic area (B). Then a frequency spectrum (f3) is generated as intermediate information by making n copies of the basic area (B), dispersedly arranging the copies in the frequency space and making the other frequency components zero. Lastly, the message information (m) is hidden in the medium information (M) by executing operation based on the frequency spectrum (f3) and medium information (M).
Abstract translation: 本发明的目的是提供一种用于将附加信息嵌入到视频电影中而不对视频电影的压缩效率基本上具有影响并且也不会显着降低图像质量的方法。 ÄCONSTITUTIONÜ在视频电影的帧中指定至少一个嵌入区域用于嵌入信息，并且通过参考要嵌入的数据的内容的嵌入规则来确定与要嵌入的信息相对应的嵌入区域的帧间预测的类型 使其对应于嵌入区域的帧间预测的类型。 期望存在嵌入区域的帧是双向预测编码帧。
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5.发明公开
公开(公告)号：EP1139660A4
公开(公告)日：2003-02-26
申请号：EP98955969
申请日：1998-11-25
Applicant: IBM
Inventor： KAMIJO KOICHI , SHIMIZU SHUICHI , MORIMOTO NORISHIGE
CPC classification number: G06T1/0035 , G06T2201/0052 , G06T2201/0053 , H04N7/24 , H04N19/467 , H04N21/23892 , H04N21/8358
Abstract: An intra-block of the I-frame or P,B-frame is detected from an MPEG stream. When it is detected, one macro block of data is taken out from the MPEG stream and buffered. The buffered macro block is embedded with a pattern so that the length of the VLC may be invariant. The macro block embedded with a pattern is returned back to the MPEG stream. More specifically, the DC component is detected from the buffered macro block and a pseudo-random number is generated in order to generate a pattern to be embedded. It is judged whether or not the bit length of the DC component is invariant when the generated pattern is embedded. If the bit length is invariant, the pattern is embedded in the buffered macro block. When the bit length is varied, it is judged whether or not half of the pattern can be embedded. If possible, the pattern is embedded.
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Patent Agency Ranking
公开(公告)号：EP0942418A4
公开(公告)日：2002-08-05
申请号：EP97934777
申请日：1997-08-12
Applicant: IBM
Inventor： MIWA KUNIHIKO , KOBAYASHI HIROYA , MORIMOTO NORISHIGE
CPC classification number: G06T1/0035 , G06T2201/0051 , G06T2201/0061 , G06T2201/0064 , G11B20/00086 , G11B20/00094 , G11B20/00768 , G11B20/00884 , H04N5/913 , H04N9/8042 , H04N2005/91314 , H04N2005/91321 , H04N2005/91328 , H04N2005/91335
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公开(公告)号：JP2001069343A
公开(公告)日：2001-03-16
申请号：JP2000204853
申请日：2000-07-06
Applicant: IBM
Inventor： TONEGAWA SATOKO , MORIMOTO NORISHIGE , KAMIJO KOICHI
IPC: G06T1/00 , G09C5/00 , H04N1/387 , H04N5/92 , H04N19/102 , H04N19/136 , H04N19/176 , H04N19/196 , H04N19/467 , H04N19/60 , H04N19/625 , H04N19/70 , H04N19/91 , H04N7/30
Abstract: PROBLEM TO BE SOLVED: To discriminate whether alteration is added to any part of a picture by embedding an electronic watermark to the picture. SOLUTION: Relating to an embedding part 30, DCT blocks of the luminance components Y of a picture are paired two by two, mutually corresponding DCT coefficients are randomly selected from respective DCT blocks included in each pair through the use of a random number, and data are embedded by operating so that a mutual relation between these DCT coefficients may express data in accordance with a prescribed rule. When this picture is altered, the DCT coefficients included in the pair of the altered part is no longer subjected to the rule but express a value different from original data. A sampling part 40 samples data from the picture, estimates data embedded first by majority, discriminates that a pair from which data different from the estimated data is altered, and displays it.
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公开(公告)号：JP2005284085A
公开(公告)日：2005-10-13
申请号：JP2004099592
申请日：2004-03-30
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： TACHIBANA TAKATERU , MORIMOTO NORISHIGE
CPC classification number: G10L19/097
Abstract: PROBLEM TO BE SOLVED: To properly detect a digital watermark by improving ruggedness of the digital watermark embedded in processed variously voice contents. SOLUTION: This device is provided with watermark signal detection parts 11 for calculating detected values of a watermark signal by using two or more keys to a PCM data of voice contents for each channel, an adding part 12 of two or more detected values for adding detected values corresponding to each channel and each key at each possible combination of each channel and each key, and a comparison selection part for selecting and outputting one addition result from among each addition result by the adding part 12 of two or more detected values. Moreover, this device is provided with a message reconstruction part 13 which accumulates these detected values at different accumulation cycles and reconstructs a message embedded as a digital watermark from the accumulated detected values and also performs boundary detection of the voice contents, to detect the voice contents in which the digital watermark is embedded, and a detection result output part 14 which synthesizes each result processed by the message reconstruction part 13 and outputs the result. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：通过改善嵌入在处理的各种语音内容中的数字水印的坚固性来适当地检测数字水印。 解决方案：该装置具有水印信号检测部分11，用于通过使用两个或更多个键来计算每个通道的语音内容的PCM数据的水印信号的检测值，两个或更多个检测值的加法部分12 用于在每个通道和每个键的每个可能组合处添加对应于每个通道和每个键的检测值;以及比较选择部分，用于从加法部分12中选择并输出一个相加结果，其中两个或更多个检测值 。 此外，该装置设置有消息重建部分13，其在不同的累加周期累积这些检测值，并从累积的检测值重建作为数字水印嵌入的消息，并且还执行语音内容的边界检测，以检测语音内容 其中嵌入有数字水印，以及检测结果输出部分14，其合成由消息重构部分13处理的每个结果，并输出结果。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2002258782A
公开(公告)日：2002-09-11
申请号：JP2001044187
申请日：2001-02-20
Applicant: IBM
Inventor： MORIMOTO NORISHIGE , NAGAO KATASHI , KOBAYASHI SEISHI
IPC: G06F13/00 , G06F17/30 , G06Q10/00 , G06Q30/02 , G06Q30/04 , G06Q30/06 , G06Q50/00 , G09F19/00 , G06F17/60
Abstract: PROBLEM TO BE SOLVED: To aggressively and commercially use properties of an explosively propagating medium as advertisement business. SOLUTION: An advertisement distribution system is provided with a contents provision side system 30 which adds a contents ID as an identifier to each contents to provide contents for a user terminal 50, the user terminal 50 which acquires contents from the contents provision side system 30 through a network and recognizes the contents ID added to the acquired contents to send in onto the network, a sponsor side system 70 which distributes a prescribed advertisement to the user terminal 50 through the network on the basis of the contents ID to be sent, and a proxy server side system 10 which manages the contents ID added to contents and sends a trigger of advertisement distribution to the sponsor system side 70 which distributes and advertisement on the basis of the contents ID.
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公开(公告)号：JP2000099501A
公开(公告)日：2000-04-07
申请号：JP26262398
申请日：1998-09-17
Applicant: IBM
Inventor： HIRAYAMA TADAKI , AMANO TOMIO , SHIMIZU SHUICHI , MORIMOTO NORISHIGE
Abstract: PROBLEM TO BE SOLVED: To pad information into document data including a text recorded by means of page description by generating a feature string deciding a position where information is padded based on a layout and changing the page description of the text in the decided position in accordance with the information to be padded. SOLUTION: A character string object in page description, which is a padding object, is divided so that the positions of characters all feature strings aji and bji can be operated. A part where is not used for padding is divided at random so that a person making an attack cannot easily detect a part where a watermark is padded. A layout is analyzed on the set of the divided character string objects and they are reconstituted into row data. The characters corresponding to the feature strings aji and bji against a document being the padding object are decided based on row data after reconstitution. At the time of padding, the feature string corresponding to (j) is selected. When j-th bit is '1', an operation for increasing aji-bji increases is executed when (i) is '1' to 'n'.
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