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公开(公告)号：CZ128999A3
公开(公告)日：1999-08-11
申请号：CZ128999
申请日：1997-02-13
Applicant: IBM
Inventor： MORIMOTO NORISHIGE , MAEDA JUNJI
Abstract: An objective of the present invention is to provide a method for embedding additional information into a video movie without substantially having an influence on the compression efficiency of the video movie and also without substantially causing degradation of the picture quality. ÄCONSTITUTIONÜ Specify at least one embedding region in the frame of the video movie for embedding information, and determine a type of interframe prediction of the embedding region in correspondence with information to be embedded by referring to an embedding rule where a content of data to be embedded is caused to correspond to the type of interframe prediction of the embedding region. It is desirable that the frame in which the embedding region exists is a bidirectionally predictive-coded frame.
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公开(公告)号：GB2330031A
公开(公告)日：1999-04-07
申请号：GB9819727
申请日：1998-09-11
Applicant: IBM
Inventor： MIWA KUNIHIKO , MORIMOTO NORISHIGE , SHIMIZU SHUICHI
IPC: H04N5/91 , G06F12/14 , G06F21/10 , G06F21/16 , G06F21/62 , G06T1/00 , G09C5/00 , G11B20/00 , G11B20/10 , H04L9/36 , H04N1/387 , H04N7/08 , H04N7/081 , H04N7/167 , H04N7/24 , H04N19/00 , H04N21/2347 , H04N21/266 , H04N21/8355 , H04N1/32
Abstract: Copying of watermarked DVD data or broadcast digital image data is controlled by appending a token to the data. When a copy is made the token is deleted from the data to prevent further copying. The token may also be used to control playback and reception of data. The token is generated from the DVD data using a hash code or CRC code. The technique may be applied in a set-top box, personal computer, facsimile machine or mobile telephone.
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公开(公告)号：DE69105400T2
公开(公告)日：1995-06-08
申请号：DE69105400
申请日：1991-07-29
Applicant: IBM
Inventor： KOBAYASHI MASAKI , MORI MASAKI , MORIMOTO NORISHIGE
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公开(公告)号：AT385649T
公开(公告)日：2008-02-15
申请号：AT97902687
申请日：1997-02-13
Applicant: IBM
Inventor： MORIMOTO NORISHIGE , MAEDA JUNJI
Abstract: An objective of the present invention is to provide a method for embedding additional information into a video movie without substantially having an influence on the compression efficiency of the video movie and also without substantially causing degradation of the picture quality. ÄCONSTITUTIONÜ Specify at least one embedding region in the frame of the video movie for embedding information, and determine a type of interframe prediction of the embedding region in correspondence with information to be embedded by referring to an embedding rule where a content of data to be embedded is caused to correspond to the type of interframe prediction of the embedding region. It is desirable that the frame in which the embedding region exists is a bidirectionally predictive-coded frame.
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公开(公告)号：MY127838A
公开(公告)日：2006-12-29
申请号：MYPI9704638
申请日：1997-10-03
Applicant: IBM
Inventor： MIWA KUNIHIKO , KOBAYASHI HIROYA , MORIMOTO NORISHIGE
Abstract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Patent Agency Ranking
公开(公告)号：MY122045A
公开(公告)日：2006-03-31
申请号：MYPI9704256
申请日：1997-09-12
Applicant: IBM
Inventor： MORIMOTO NORISHIGE , MAEDA JUNJI
Abstract: A METHOD FOR EMBEDDING ADDITIONAL INFORMATION INTO A VIDEO MOVIE WITHOUT SUBSTANTIALLY HAVING AN INFLUENCE ON THE COMPRESSION EFFICIENCY OF THE VIDEO MOVIE AND ALSO WITHOUT SUBSTANTIALLY CAUSING DEGRADATION OF THE PICTURE QUALITY. PARTICULARLY, THE METHOD OF THE PRESENT INVENTION INVOLVES SPECIFYING (64) AT LEAST ONE EMBEDDING REGION IN THE FRAME OF THE VIDEO MOVIE FOR EMBEDDING INFORMATION, AND DETERMINING(66) A TYPE OF INTERFRAME PREDICTION OF THE EMBEDDING REGION IN CORRESPONDENCE WITH INFORMATION TO BE EMBEDDED BY REFERRING TO AN EMBEDDING RULE WHERE A CONTENT OF DATA TO BE EMBEDDED IS CAUSED TO CORRESPOND TO THE TYPE OF INTERFRAME PREDICTION OF THE EMBEDDING REGION.IT IS DESIRABLE THAT THE FRAME IN WHICH THE EMBEDDING REGION EXISTS IS A BIDIRECTIONALLY PREDICTIVE-CODED FRAME. (FIG. 6)
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公开(公告)号：CA2224019C
公开(公告)日：2005-01-11
申请号：CA2224019
申请日：1997-12-05
Applicant: IBM
Inventor： KOIDE AKIO , SHIMIZU SHUICHI , KOBAYASHI SEIJI , MORIMOTO NORISHIGE
Abstract: It is intended to make it possible to properly certify who is a genuine owne r, and to inhibit deterioration of image quality of media information to which the embedding operation is performed by adaptively determining amount of the operation for characterist ic values such as pixel values. The invention provides a data hiding method for embedding message data into media data comprising the steps of obtaining a secondary key by inputti ng a key having a predetermined value to a specified function; determining hiding positions in which the message data will be embedded according to the obtained secondary key, a nd selecting one of plural hiding functions according to the secondary key so that the selected hiding function is used for each of the determined hiding positions; and embedding the message data into each of the determined hiding positions according to the selected hiding function corresponding to the hiding position.
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公开(公告)号：CZ290838B6
公开(公告)日：2002-10-16
申请号：CZ128999
申请日：1997-02-13
Applicant: IBM
Inventor： MORIMOTO NORISHIGE , MAEDA JUNJI
Abstract: The proposed method comprises embedding additional information into a video movie without substantially having an influence on the compression efficiency of the video movie and also without substantially causing degradation of the picture quality. The method further comprises specification of at least one embedding region in the frame of the video movie for embedding information, and determining a type of interframe prediction of the embedding region in correspondence with information to be embedded by referring to an embedding rule where a content of data to be embedded is caused to correspond to the type of interframe prediction of the embedding region. It is desirable that the frame in which the embedding region exists is a bidirectionally predictive-coded frame.
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公开(公告)号：HU0105014A2
公开(公告)日：2002-04-29
申请号：HU0105014
申请日：1998-11-25
Applicant: IBM
Inventor： KAMIJO KOICHI , MORIMOTO NORISHIGE , SHIMIZU SHUICHI
Abstract: It is one object of the present invention to provide a method and system for embedding an electronic watermark directly in an MPEG stream. ÄConstitutionÜ An intra-macroblock of an I-frame or of a P or B-frame is detected in an MPEG stream, and following the detection of an intra-macroblock of the I-frame or of the P or B-frame, data for one macroblock are extracted from the MPEG stream and buffered. An embedding pattern is embedded in the buffered macroblock without changing the length of VLC, and the resultant macroblock is returned to the MPEG stream. More specifically, a DC factor is extracted from the buffered macroblock, and a pseudorandom number is generated to produce an embedding pattern. Then, whether the bit length of the DC factor will not be changed by embedding the obtained embedded pattern is determined. When the bit length of the DC factor not be changed, the embedding pattern is embedded in the buffered macroblock. When the bit length will be changed, whether 1/2 of the embedding pattern can be embedded is determined. If possible, 1/2 of the embedded pattern is embedded in the macroblock.
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公开(公告)号：HU0100650A2
公开(公告)日：2001-06-28
申请号：HU0100650
申请日：1997-02-13
Applicant: IBM
Inventor： MAEDA JUNJI , MORIMOTO NORISHIGE
Abstract: An objective of the present invention is to provide a method for embedding additional information into a video movie without substantially having an influence on the compression efficiency of the video movie and also without substantially causing degradation of the picture quality. ÄCONSTITUTIONÜ Specify at least one embedding region in the frame of the video movie for embedding information, and determine a type of interframe prediction of the embedding region in correspondence with information to be embedded by referring to an embedding rule where a content of data to be embedded is caused to correspond to the type of interframe prediction of the embedding region. It is desirable that the frame in which the embedding region exists is a bidirectionally predictive-coded frame.
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