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    • 11. 发明申请
    • SYSTEM AND METHOD FOR EMBEDDING ADDITIONAL INFORMATION IN VIDEO DATA
    • 在视频数据中嵌入附加信息的系统和方法
    • US20080112490A1
    • 2008-05-15
    • US11931241
    • 2007-10-31
    • Koichi KamijoShuichi ShimizuNorishige Morimoto
    • Koichi KamijoShuichi ShimizuNorishige Morimoto
    • H04N7/12
    • G06T1/0035G06T2201/0052G06T2201/0053H04N7/24H04N19/467H04N21/23892H04N21/8358
    • A method and system for embedding an electronic watermark directly in an MPEG stream is provided. 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 ½ of the embedding pattern can be embedded is determined. If possible, ½ of the embedded pattern is embedded in the macroblock.
    • 提供了一种用于将电子水印直接嵌入到MPEG流中的方法和系统。 在MPEG流中检测I帧或P帧或B帧的宏块内部,并且在I帧或P帧或B帧的宏块内检测之后,对于一个 从MPEG流提取宏块并进行缓冲。 在不改变VLC的长度的情况下,将嵌入图案嵌入到缓冲宏块中,并将所得到的宏块返回到MPEG流。 更具体地,从缓冲的宏块中提取DC因子,生成伪随机数以产生嵌入模式。 然后,通过嵌入获得的嵌入图案来确定DC因子的位长度是否不会改变。 当直流因子的位长度不改变时,嵌入模式被嵌入到缓冲宏块中。 当位长度被改变时,确定嵌入模式的1/2是否被嵌入。 如果可能,嵌入式图案的1/2将嵌入宏块中。
    • 13. 发明授权
    • Data control system
    • 数据控制系统
    • US06230268B1
    • 2001-05-08
    • US09127061
    • 1998-07-31
    • Kunihiko MiwaNorishige MorimotoShuichi Shimizu
    • Kunihiko MiwaNorishige MorimotoShuichi Shimizu
    • G06F1130
    • G11B20/00898G06T1/0021G06T2201/0064G11B20/00086H04N7/24
    • An object of the Invention is to provide a system and method for effecting a secure data control using an electronic watermarking with a low manufacturing cost. A solution of the objective is a data control system is built which comprises; embedding a control flag indicating to control data using an electronic watermarking technique, preparing a token having information as to how to control the data by using the content of the data, distributing the token appended to the data, detecting the control flag from the distributed data, reading the token appended to the data when the control flag is detected, and controlling the data according to a predefined control rule of the token or the control flag. In addition, a subsequent data control is further suppressed by modifying the token in controlling the data.
    • 本发明的一个目的是提供一种利用低制造成本的电子水印实现安全数据控制的系统和方法。 目标的解决方案是构建数据控制系统; 使用电子水印技术嵌入指示控制数据的控制标志,通过使用数据内容来准备具有关于如何控制数据的信息的令牌,分配附加到数据上的令牌,从分布式数据检测控制标志 当检测到控制标志时读取附加到数据的令牌,并且根据令牌或控制标志的预定义的控制规则来控制数据。 此外,通过在控制数据中修改令牌来进一步抑制后续的数据控制。
    • 15. 发明授权
    • Motion picture electronic watermark system
    • 电影电子水印系统
    • US06785398B1
    • 2004-08-31
    • US09266526
    • 1999-03-11
    • Shuichi ShimizuAkio Koide
    • Shuichi ShimizuAkio Koide
    • G06K900
    • G06T1/0085G06T1/005G06T2201/0065H04N19/00H04N19/467
    • To provide an electronic watermark method and system for which the detection reliability of embedded information does not depend on the strength of signals that are measured in frames. To achieve the above object, information is prepared for embedding as a bit stream, the sign of the bit stream being changed in accordance with a sign inversion cycle, and the bit stream being embedded in a frame. As for detection of information, values obtained through observation of frames are accumulated, and the accumulated values are compared with threshold values that are varied in accordance with the accumulated values obtained by observation. The comparison results are then employed to detect the embedded information.
    • 提供嵌入信息的检测可靠性不依赖于以帧为单位测量的信号的强度的电子水印方法和系统。 为了实现上述目的,准备作为比特流嵌入的信息,根据符号反转周期改变比特流的符号,并将比特流嵌入到帧中。 对于信息的检测,通过观察帧获得的值被累积,并且将累加值与根据通过观察获得的累积值而变化的阈值进行比较。 然后比较结果用于检测嵌入信息。
    • 16. 发明授权
    • Motion picture electronic watermark system
    • 电影电子水印系统
    • US06971012B1
    • 2005-11-29
    • US09534097
    • 2000-03-23
    • Shuichi ShimizuAkio Koide
    • Shuichi ShimizuAkio Koide
    • H04N7/08G06T1/00H04N7/26H04L9/00
    • G06T1/005G06T2201/0065H04N19/467
    • To provide an electronic watermark method and system for which the detection reliability of embedded information does not depend on the strength of signals that are measured in frames.To achieve the above object, information is prepared for embedding as a bit stream, the sign of the bit stream being changed in accordance with a sign inversion cycle, and the bit stream being embedded in a frame.As for detection of information, values obtained through observation of frames are accumulated, and the accumulated values are compared with threshold values that are varied in accordance with the accumulated values obtained by observation. The comparison results are then employed to detect the embedded information.
    • 提供嵌入信息的检测可靠性不依赖于以帧为单位测量的信号的强度的电子水印方法和系统。 为了实现上述目的,准备作为比特流嵌入的信息,根据符号反转周期改变比特流的符号,并将比特流嵌入到帧中。 对于信息的检测,通过观察帧获得的值被累积,并且将累加值与根据通过观察获得的累积值而变化的阈值进行比较。 然后比较结果用于检测嵌入信息。
    • 17. 发明授权
    • Embedding, processing and detection of digital content, information and data
    • 嵌入,处理和检测数字内容,信息和数据
    • US07660991B2
    • 2010-02-09
    • US09946408
    • 2001-09-05
    • Taiga NakamuraRyuki TachibanaShuichi ShimizuSeiji Kobayashi
    • Taiga NakamuraRyuki TachibanaShuichi ShimizuSeiji Kobayashi
    • G10L19/00G06K9/00G06K9/52H04L9/32
    • G06T1/0071G06T2201/0065H04N1/00005H04N1/00037H04N1/00045H04N1/32144H04N1/32304H04N2201/3239
    • Enables identification and detection of processing and type of digital content, while using multiple electronic watermarks. One embodiment provides a data processing detection system having an embedding apparatus for adding a predetermined additional signal to digital content, including a watermark design unit and embedding signal generators for generating multiple types of additional signals, correlated with each other and of differing robustness from each other for the processing of the content data, and a synthesis unit for adding the multiple types of additional signals to the content data; and detection apparatus for detecting additional signals in the digital content, and for detecting the additional signals embedded by the embedding apparatus, including an individual detector for detecting in the content data multiple additional signals, and a determination unit for examining deterioration levels of the additional signals to determine the type of processing performed for the content data.
    • 在使用多个电子水印的同时,可以识别和检测数字内容的处理和类型。 一个实施例提供了一种数据处理检测系统,其具有用于向数字内容添加预定附加信号的嵌入装置,包括水印设计单元和用于生成彼此相关的多种类型的附加信号的嵌入信号发生器以及彼此之间的不同鲁棒性 用于处理内容数据;以及合成单元,用于将多种类型的附加信号添加到内容数据; 以及检测装置,用于检测数字内容中的附加信号,并且用于检测嵌入装置嵌入的附加信号,包括用于在内容数据中检测多个附加信号的单独检测器,以及用于检查附加信号的劣化水平的确定单元 以确定对内容数据执行的处理的类型。
    • 18. 发明授权
    • Electronic watermarking system
    • 电子水印系统
    • US06490681B1
    • 2002-12-03
    • US09115406
    • 1998-07-14
    • Seiji KobayashiShuichi Shimizu
    • Seiji KobayashiShuichi Shimizu
    • G06F124
    • G06T1/0021G06T2201/0051G06T2201/0052G06T2201/0061H04N1/32144
    • An electronic watermarking system that impartially performs the deletion of a visible mark and the embedding of an invisible mark. Since the deletion of the visible mark and the embedding of the invisible mark are not performed sequentially but in parallel, even when a memory snapshot is taken during the process, it is difficult to acquire original image data where neither a visible mark nor an invisible mark is embedded. Furthermore, in a process for deleting a visible mark and embedding an invisible mark, an invisible mark is embedded in an area where a visible mark was embedded. Therefore, even when images are compared before and after the visible mark is deleted, it is difficult to infer from the results that an invisible mark has been newly embedded.
    • 一种电子水印系统,其公正地执行可见标记的删除和不可见标记的嵌入。 由于不可见标记的删除和不可见标记的嵌入不是顺序执行,而是并行执行,即使在处理期间拍摄存储器快照时,难以获得原始图像数据,其中既没有可见标记也不显示不可见标记 被嵌入。 此外,在删除可见标记和嵌入不可见标记的过程中,在可见标记被嵌入的区域中嵌入不可见标记。 因此,即使在删除可见标记之前和之后比较图像,也难以从结果推断出新嵌入的不可见标记。
    • 20. 发明授权
    • Simulation method, system and article of manufacture
    • 仿真方法,系统和制造
    • US08670967B2
    • 2014-03-11
    • US13255938
    • 2010-03-10
    • Hideaki KomatsuFimitomo OhsawaShuichi Shimizu
    • Hideaki KomatsuFimitomo OhsawaShuichi Shimizu
    • G06F17/50
    • G06F17/5009G05B17/02G06F17/5095Y02T10/82
    • A simulation system, method, and article of manufacture. A simulation system has a discrete and a continuous portion. The discrete portion further has a peripheral emulator in communication with the continuous portion of the simulation system. A portion of a peripheral emulator is separated and is caused to operate in a thread of a continuous system. The continuous system and the peripheral are in loose synchronization and therefore sparsely communicate with each other. The configuration significantly reduces the frequency of inter-thread communications between the continuous system and the discrete system that are performed in response to a continuous clock in a simulation system including the continuous system and the discrete system, thereby reducing communication cost. Accordingly, the operation speed of the simulation system can be increased.
    • 模拟系统,方法和制造。 模拟系统具有离散和连续的部分。 离散部分还具有与仿真系统的连续部分通信的外围仿真器。 外围仿真器的一部分被分离并且使其在连续系统的线程中操作。 连续系统和外围设备处于松动同步状态,因此彼此稀疏地通信。 该配置显着地降低了在包括连续系统和离散系统的模拟系统中响应于连续时钟而执行的连续系统和离散系统之间的线程间通信的频率,从而降低通信成本。 因此,能够提高模拟系统的运转速度。