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1. 发明公开

EP2199970A1 Watermarking compressed video data by changing blocks' prediction mode 审中-公开
标题翻译：通过改变块的预测模式中的嵌入压缩的视频数据的水印
公开(公告)号：EP2199970A1
公开(公告)日：2010-06-23
申请号：EP09178537.8
申请日：2009-12-09
申请人： Thomson Licensing, Inc.
发明人： Bordes, Philippe , Orhand, Anita
IPC分类号： G06T1/00
CPC分类号： G06T1/0035 , G06T1/005
摘要： The invention relates to a method for insertion of data in a block of image data, called the current block, of a sequence of images. The current block is coded or intended to be coded in the form of temporally predicted image data from prediction image data defined according to a first prediction mode According to the invention, the insertion method comprises the modification, according to the data to be inserted, of the first prediction mode into a second prediction mode different from the first prediction mode with a view to coding of the current block according to the second prediction mode, the second prediction mode being defined so that the prediction image data obtained with the second prediction mode are identical to the prediction image data obtained with the first prediction mode.
摘要翻译：本发明涉及一种用于图像数据的块中的数据的插入的方法，称为图像序列的当前块。当前块是编码或拟从雅丁定义为一个第一预测模式。根据本发明的预测图像数据的时间预测图像数据的形式被编码，插入方法包括修改，雅丁到数据要被插入的第一预测模式修改成第二预测模式从以当前块雅丁到第二预测模式的编码中的第一预测模式不同，所定义的第二预测模式，从而也与所述第二预测模式获得的预测图像数据被相同于与所述第一预测模式获得的预测图像数据。

2. 发明公开

EP1959688A3 Bitrate reduction method by requantization 审中-公开
标题翻译：一种通过再量化比特率缩减方法
公开(公告)号：EP1959688A3
公开(公告)日：2009-03-25
申请号：EP08101387.2
申请日：2008-02-07
申请人： Thomson Licensing, Inc.
发明人： Bordes, Philippe , Orhand, Anita
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N19/109 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/619
摘要： The method is characterized in that:
- if the current macroblock was coded according to the "skipped macroblock" mode and if at least one corrected coefficient block of said macroblock has coefficients non-null or greater than a predefined threshold, the coding mode of the macroblock is modified (50) into a mode other than "skipped macroblock" and the data of the data stream is modified or added (50) to specify this mode and the value of the coefficients.

3. 发明公开

EP1959688A2 Bitrate reduction method by requantization 审中-公开
标题翻译： Verfahren zur Bitratenminderung durch Requantisierung
公开(公告)号：EP1959688A2
公开(公告)日：2008-08-20
申请号：EP08101387.2
申请日：2008-02-07
申请人： Thomson Licensing, Inc.
发明人： Bordes, Philippe , Orhand, Anita
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N19/109 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/619
摘要： The method is characterized in that:
- if the current macroblock was coded according to the "skipped macroblock" mode and if at least one corrected coefficient block of said macroblock has coefficients non-null or greater than a predefined threshold, the coding mode of the macroblock is modified (50) into a mode other than "skipped macroblock" and the data of the data stream is modified or added (50) to specify this mode and the value of the coefficients.
摘要翻译：该方法的特征在于： - 如果当前宏块根据“跳过的宏块”模式被编码，并且如果所述宏块的至少一个校正系数块具有非零或大于预定阈值的系数，则编码模式宏块被修改（50）到除了“跳过的宏块”之外的模式，并且修改或添加数据流的数据（50）以指定该模式和系数的值。

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