公开(公告)号：EP1331820A1

公开(公告)日：2003-07-30

申请号：EP01974815.1

申请日：2001-10-12

申请人： Sony Corporation

发明人： KONDO, Tetsujiro, Sony Corporation ,  ANDO, Kazutaka, Sony Corporation ,  OHTA, Koji, Sony Corporation

IPC分类号： H04N7/24 ,  H04N1/387

CPC分类号： G06T1/0035 ,  G06T2201/0053 ,  G11B20/00086 ,  G11B20/00884 ,  H03M7/30 ,  H03M7/40 ,  H04N1/32101 ,  H04N19/196 ,  H04N19/46 ,  H04N19/467 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91 ,  H04N19/94 ,  H04N2201/327 ,  H04N2201/3283

摘要： The present invention relates to a data processing apparatus. Additional information is embedded in coded data obtained by encoding image data, without increasing the amount of the coded data, and the data in which the additional information is embedded is correctly decoded into the image data and the additional information. An embedded compression encoder 11 encodes image data according to a predetermined coding rule, and destroys the coding rule based on additional information, thereby embedding the additional information. A decoder 12 restores the embedded coded data, obtained by embedding the additional information in the coded data, into the coded data encoded according to the coding rule, thereby decoding the additional information and also decoding the coded data into the image data.

摘要翻译： 一种数据处理装置，用于通过对图像数据进行编码而创建的编码数据中的附加信息，以及在不增加编码数据量的情况下从编码数据正确地再现图像数据和附加数据。 埋藏压缩编码器（11）根据预定的编码规则对图像数据进行编码，并根据附加信息破坏编码规则，从而埋入附加信息。 解码器（12）通过将编码数据中的附加信息埋入生成的编码数据，将其编码为根据编码规则编码的编码数据，从而解码附加信息，将编码数据解码为图像数据。