公开(公告)号：US20130028466A1

公开(公告)日：2013-01-31

申请号：US13629599

申请日：2012-09-27

Applicant: Sursen Corp.

Inventor： Donglin Wang ,  Shutian Yin ,  Yunming Zhang ,  Ningsheng Liu ,  Yuansong Liang ,  Changwei Liu ,  Peng Gao ,  Yongzhi Lou ,  De Ouyang

IPC: G06K9/00

CPC classification number: G06T1/0064 ,  G06T2201/0062 ,  H04N1/32203 ,  H04N1/32219 ,  H04N1/32229 ,  H04N1/32288 ,  H04N1/32299 ,  H04N1/32336 ,  H04N2201/3283 ,  H04N2201/3284

Abstract: A novel method is disclosed for detecting hidden information in a document comprising characters, including: determining layout transformation for each character in the document for detection compared with the original document; obtaining a code sequence embedded in the document for detection based on the layout transformation of each character in the document for detection and the predetermined embedding rule; decoding the code sequence to get the hidden information embedded in the document for detection.

Abstract translation: 公开了一种用于检测包括字符的文档中的隐藏信息的新颖方法，包括：与原始文档相比，确定用于检测的文档中的每个字符的布局变换; 基于用于检测的文档中的每个字符的布局变换和预定的嵌入规则，获得嵌入文档中用于检测的代码序列; 对代码序列进行解码以获取嵌入文档中的隐藏信息进行检测。