首页> 外国专利> METHOD FOR VIDEO FORENSIC MARKING USING DUAL DOMAINS OF TWO DIMENSIONAL DISCRETE WAVELET TRANSFORM (2D-DWT) AND THREE DIMENSIONAL DISCRETE COSINE TRANSFORM (3D-DCT) AND DISCRETE FRACTIONAL RANDOM TRANSFORM (DFRNT) AND AN APPARATUS THEREOF, ESPECIALLY FOR INSERTING A FORENSIC MARK GENERATED IN A FORENSIC MARK GENERATOR INTO THE DUAL FREQUENCY DOMAINS AND A DFRTN TRANSFORM PLANE THROUGH A QUANTIZATION METHOD

METHOD FOR VIDEO FORENSIC MARKING USING DUAL DOMAINS OF TWO DIMENSIONAL DISCRETE WAVELET TRANSFORM (2D-DWT) AND THREE DIMENSIONAL DISCRETE COSINE TRANSFORM (3D-DCT) AND DISCRETE FRACTIONAL RANDOM TRANSFORM (DFRNT) AND AN APPARATUS THEREOF, ESPECIALLY FOR INSERTING A FORENSIC MARK GENERATED IN A FORENSIC MARK GENERATOR INTO THE DUAL FREQUENCY DOMAINS AND A DFRTN TRANSFORM PLANE THROUGH A QUANTIZATION METHOD

机译：使用二维离散小波变换（2D-DWT）和三维离散余弦变换（3D-DCT）和离散分数阶随机变换（DFRNT）的二维域进行视频取证标记的方法及其前瞻性在法证生成器中通过量化方法进入双频域和DFRTN变换平面

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摘要

PURPOSE: A method for video forensic marking using dual domains of two dimensional discrete wavelet transform (2D-DWT) and three dimensional discrete cosine transform (3D-DCT) and discrete fractional random transform (DFRNT) and an apparatus thereof are provided to configure an insertion key by using three parameters of the DFRNT, and use a rotation degree of scrambling transformation as a forensic mark generation key and a reconstruction key, thereby improving security.;CONSTITUTION: A forensic mark generator includes a block encoder (102) and a scrambling transformation unit (104). The block encoder encodes insertion target information (108) through a block coding method. The scrambling transformation unit transforms the coded information into a forensic mark (110) by using a generation key (106). A forensic mark reconstruction unit includes a scrambling transformation unit (404) and a block decoder (402). The scrambling transformation unit transforms the forensic mark by using a forensic mark reconstruction key (406). The block decoder transforms the transformed information into detection information (408).;COPYRIGHT KIPO 2013;[Reference numerals] (102) Block encoder; (104,404) Scrambling transformation unit; (106) Generation key; (108) Insertion target information; (110) Forensic mark; (402) Block decoder; (406) Reconstruction key; (408) Detection information

机译：目的：使用二维离散小波变换（2D-DWT）和三维离散余弦变换（3D-DCT）和离散分数随机变换（DFRNT）的双域进行视频取证标记的方法及其装置，用于配置通过使用DFRNT的三个参数插入密钥，并使用加扰变换的旋转度作为法医标记生成密钥和重建密钥，从而提高了安全性。;组成：法医标记生成器包括块编码器（102）和加扰变换单元（104）。块编码器通过块编码方法对插入目标信息（108）进行编码。加扰变换单元通过使用生成密钥（106）将编码信息变换成法医标记（110）。取证标记重建单元包括加扰变换单元（404）和块解码器（402）。加扰变换单元通过使用法医标记重建密钥来变换法医标记（406）。块解码器将变换后的信息转换为检测信息（408）。; COPYRIGHT KIPO 2013; [附图标记]（102）块编码器; （104,404）加扰变换单元; （106）生成密钥; （108）插入目标信息; （110）法医标记; （402）块解码器; （406）重构密钥; （408）检测信息

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公开/公告号KR20130098535A

专利类型
公开/公告日2013-09-05

原文格式PDF
申请/专利权人 KIM JONG WEON;
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申请/专利号KR20120020126
发明设计人 LI DE;KIM JONG WEON;
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申请日2012-02-28
分类号H04N5/913;
国家 KR
入库时间 2022-08-21 16:26:21

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