Invention Grant
US08488837B2 Apparatus and method for generating constructively multi-patterned watermark, and apparatus and method for inserting and detecting the watermark using the same
有权
用于产生建构性多图案水印的装置和方法,以及用于使用其进行水印插入和检测的装置和方法
- Patent Title: Apparatus and method for generating constructively multi-patterned watermark, and apparatus and method for inserting and detecting the watermark using the same
- Patent Title (中): 用于产生建构性多图案水印的装置和方法,以及用于使用其进行水印插入和检测的装置和方法
-
Application No.: US13055649Application Date: 2009-07-07
-
Publication No.: US08488837B2Publication Date: 2013-07-16
- Inventor: Ki-Hyeok Bae , Hyun-Tae Kim , In-Je Cho
- Applicant: Ki-Hyeok Bae , Hyun-Tae Kim , In-Je Cho
- Applicant Address: KR Seoul
- Assignee: CK&B Co., Ltd.
- Current Assignee: CK&B Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: The PL Law Group, PLLC
- Priority: KR10-2008-0071986 20080724
- International Application: PCT/KR2009/003690 WO 20090707
- International Announcement: WO2010/011035 WO 20100128
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/36 ; G09C3/08 ; G09C3/00 ; H04N7/167 ; H04N1/40 ; H04K1/00 ; H04L9/38

Abstract:
An apparatus and a method for generating a constructively multi-patterned watermark, an apparatus and a method for inserting and detecting the watermark using the same. The method includes dividing user's hidden data into plural partial data and outputs the plural partial data, performing a message-encoding of the plural partial data, modulating the plural message-encoded data into image signal format and outputting plural message signals, generating a synchronization signal for synchronizing the constructively multi-patterned watermark with a two-dimensional translation of an image, generating, plural sub-base patterns using the plurality of message signals modulated into the image signal format, and the synchronization signal, and generating a base watermark that is the constructively multi-patterned watermark, using the plural sub-base patterns. Therefore, the invention increases the payload of the watermark, withstands robustly the two-dimensional translation of an image and general geometric transform of the image through the constructive characteristics of the watermark.
Public/Granted literature
Information query