检索结果-内蒙古大学图书馆

matrix encoding for data hiding using multilayer video coding and transcoding solutions

SIGNAL PROCESSING-IMAGE COMMUNICATION 2012年第9期27卷 1025-1034页

作者： Shanableh, Tamer Amer Univ Sharjah Dept Comp Sci & Engn Sharjah U Arab Emirates

This paper proposes a multitier data hiding solution in MPEG video using matrix encoding. In the first tier of the proposed solution, raw video is encoded into two layers using multilayer Signal to Noise Ratio (SNR) encoding. During the multilayer encoding process, the quantization scales and coding parameters are stored. In the second tier, message bits are embedded in the stored quantization scales using matrix encoding. In the third and last tier, the raw video is encoded again into two layers using the modulated quantization scales and coding parameters of the first encoder. The proposed multitier solution is extended by replacing the multilayer encoder with a multilayer transcoder to accommodate situations in which the video exists in pre-coded format only. By the use of multilayer encoder or transcoding, we show that the message payload can be doubled without adversely affecting the coding quality or bitrate of the host video. We also show that message embedding using matrix encoding can be extended to modulate motion vectors. The paper also proposes two solutions for motion vector modulation based on the availability of the raw video. In comparison to existing work, the proposed solutions have higher message payloads, lower degradation in video quality and result in reduced excessive bitrate. (C) 2012 Elsevier B.V. All rights reserved.

关键词： Data hiding Steganography matrix encoding Video transcoding Scalable video coding

来源：评论

学校读者我要写书评

暂无评论

matrix encoding-based high-capacity and high-fidelity reversible data hiding in HEVC

引用

SIGNAL IMAGE AND VIDEO PROCESSING 2020年第5期14卷 897-905页

作者： Konyar, Mehmet Zeki Akbulut, Orhan Ozturk, Sitki Kocaeli Univ Informat Syst Engn Dept Umuttepe Campus TR-41001 Kocaeli Turkey Kocaeli Univ Comp Engn Dept Umuttepe Campus TR-41001 Kocaeli Turkey Kocaeli Univ Elect & Telecommun Engn Dept Umuttepe Campus TR-41001 Kocaeli Turkey

Nowadays, data hiding has become important for different reasons such as copyright violation and authentication. Conventional data hiding approaches may suffer from high capacity and high fidelity. In general, increasing capacity leads to distortion in carrier signal. In this paper, an efficient data hiding method, which has high capacity and high fidelity, is proposed for high-efficiency video coding. Hidden data are embedded into the coefficient of the discrete sine transforms at the transform domain level. The proposed method is basically based on matrix encoding approach that provides high capacity and high fidelity. In this paper, additionally, error propagation issue caused by data hiding is handled in the video encoding. Then, data hiding process is carried out without error propagation. Thus, distortion in visual quality is kept at minimum level during video encoding. Experimental results reveal that the proposed method exhibits outstanding performance in terms of visual quality and embedding capacity.

关键词： Data hiding matrix encoding Secret communication HEVC

来源：评论

学校读者我要写书评

暂无评论

A compact covering method to exploit embedding capacity for matrix encoding

引用

INFORMATION SCIENCES 2012年 188卷 170-181页

作者： Lin, Ren-Der Chang, Chao-Tsun Hsiuping Univ Sci & Technol Dept Informat Management Taichung Taiwan

Recently, a number of covering schemes proposed to exploit embedding capacity in covering images using matrix encoding. When binary secret data include a high frequency of repeated bit-blocks, a preprocessing phase is employed to compress secret data prior to the embedding process regardless of whether the compressed secret data still contain some repeated bit-blocks. This paper proposes two novel compact covering schemes, compact covering scheme (CCS) and intelligent compact covering scheme (ICCS), which directly compress and conceal the repeated bit-blocks of secret data bits into covering images within a single phase. The proposed schemes can exploit the embedding capacity and increase the embedding efficiency by reducing the required encoding operations. In addition, the proposed ICCS scheme can indicate up to which degree of repeated bit-blocks of secret data it can take advantage of in order to improve the embedding capacity. Experimental results demonstrate that the proposed ICCS method can significantly improve the embedding capacity when the ratio of the repeated bit-blocks over the total number of blocks is low. The proposed schemes are feasible for actual data-hiding applications. (C) 2011 Elsevier Inc. All rights reserved.

关键词： Compact covering Intelligent compact covering matrix encoding Information hiding

来源：评论

学校读者我要写书评

暂无评论

Stego key recovery method for F5 steganography with matrix encoding

引用

EURASIP JOURNAL ON IMAGE AND VIDEO PROCESSING 2020年第1期2020卷 1-17页

作者： Liu, Jiufen Yang, Chunfang Wang, Junchao Shi, Yanan Zhengzhou Sci & Technol Inst Sci Ave Zhengzhou 450001 Peoples R China State Key Lab Math Engn & Adv Comp Sci Ave Zhengzhou 450001 Peoples R China

When embedding secret message into image by steganography with matrix encoding, there are still no effective methods to recover the stego key because it is difficult to statistically distinguish the stego coefficient sequences selected by true and false keys. Therefore, this paper proposes a method for recovering the stego key of a typical JPEG (Joint Photographic Experts Group) image steganography-F5 which composes of the check matrix and shuffling key. Firstly, the check matrix is recovered based on the embedding ratio estimated by quantitative steganalysis. The shuffling key is then recovered based on the distribution difference between the bit sequences extracted by the true and false shuffling keys. Additionally, the cardinality of the shuffling key space is significantly reduced by examining the extracted encoding parameter and message length. Experimental results show that the proposed method can recover the stego key accurately and efficiently, even when the existing Xu's method fails for the high or very low embedding ratio.

关键词： Steganalysis Forensics F5 steganography Stego key matrix encoding Shuffle

来源：评论

学校读者我要写书评

暂无评论

A High-Embedding Efficiency RDH in Encrypted Image Combining MSB Prediction and matrix encoding for Non-Volatile Memory-Based Cloud Service

引用

IEEE ACCESS 2020年 8卷 52028-52040页

作者： Xie, Xiao-Zhu Chang, Chin-Chen Chen, Kaimeng Xiamen Univ Technol Dept Informat Engn & Comp Sci Xiamen 361024 Peoples R China Feng Chia Univ Dept Informat Engn & Comp Sci Taichung 40724 Taiwan Engn Res Ctr Software Testing & Evaluat Fujian Pr Xiamen 361024 Peoples R China Hangzhou Dianzi Univ Sch Comp Sci & Technol Hangzhou 310018 Peoples R China Jimei Univ Comp Engn Coll Xiamen 361021 Peoples R China

With the rise of non-volatile memory used in cloud service, it becomes urgent to reduce the write cost so as to improve the data manipulation capability. This paper proposed a high embedding efficiency reversible data hiding scheme for encrypted images (RDH-EI). It embeds data at the locations of most significant bit (MSB) using matrix encoding, resulting in a high embedding efficiency. In order to restore the image completely at the receiver side, a highly accurate MSB prediction based on orthogonal projection technique is preprocessed on the original image and the prediction result is self-embedded to help recover the image. The experimental results verify that the proposed scheme outperforms the previous related schemes, it can achieve a higher embedding capacity of 0.412 bits per pixel at average, moreover, a significantly higher embedding efficiency of 3.43 bits per change is obtained. That means the proposed scheme can reduce the write cost by minimizing the modification in the case of the same payload and is especially suitable for applications used the non-volatile memory. Meanwhile, the process of data extraction is error free and the image can be recovered completely.

关键词： Nonvolatile memory Encryption Random access memory Image coding Data mining Cloud computing matrix encoding MSB prediction high embedding efficiency reversible data hiding

来源：评论

学校读者我要写书评

暂无评论

An AMBTC Authentication Scheme With Recoverability Using matrix encoding and Side Match

引用

IEEE ACCESS 2021年 9卷 133746-133761页

作者： Hong, Wien Wu, Jie Lou, Der-Chyuan Zhou, Xiaoyu Chen, Jeanne Natl Taichung Univ Sci & Technol Dept Comp Sci & Informat Engn Taichung 404 Taiwan Nanfang Coll Guangzhou Sch Elect & Comp Engn Guangzhou 501970 Guangdong Peoples R China Chang Gung Univ Dept Comp Sci & Informat Engn Taoyuan 333 Taiwan Linkou Chang Gung Mem Hosp Dept Neurol Stroke Ctr Taoyuan 333 Taiwan Jimei Univ Sch Informat Engn Xiamen 361021 Fujian Peoples R China

This paper presents an authentication scheme with recoverability based on Absolute moment block truncation coding (AMBTC). Previous works do not take into account characteristics of the AMBTC compressed codes. Therefore, the qualities of marked and recovered images are not satisfactory. In this paper, we generate the recovery codes according to block similarities. The recovery codes are scrambled and stored in the bitmaps of smooth blocks using matrix encoding. The bits in the bitmap are flipped to obtain a set of authentication codes. The code that causes the least error is embedded into the quantization values using the adaptive pixel pair matching technique (APPM). For those complex blocks, the authentication codes are generated from the bitmaps, and are embedded into the quantization values. After authenticating, the tampered blocks are recovered by untampered ones with the same cluster information. Some blocks that cannot be recovered in the previous stage are recovered by using the Side match technique. The experimental results show that our method provides better image quality and recoverability than prior works.

关键词： Codes Authentication Image coding Quantization (signal) Image quality encoding Watermarking AMBTC side match APPM matrix encoding

来源：评论

学校读者我要写书评

暂无评论

A Study on Embedding Efficiency of matrix encoding

引用

INTERNATIONAL JOURNAL OF DIGITAL CRIME AND FORENSICS 2012年第1期4卷 37-48页

作者： Yu, Lifang Shi, Yun Q. Zhao, Yao Ni, Rongrong Cao, Gang Beijing Jiaotong Univ Biomed Engn Beijing Peoples R China New Jersey Inst Technol Dept Elect & Comp Engn Newark NJ 07102 USA Beijing Jiaotong Univ Inst Informat Sci Beijing Peoples R China

In this paper, the authors examine embedding efficiency, which influences the most concerned performance of steganography, security, directly. Embedding efficiency is defined as the number of random message bits embedded per embedding change. Recently, matrix embedding has gained extensive attention because of its outstanding performance in boosting steganographic schemes' embedding efficiency. Firstly, the authors evaluate embedding change not only on the number of changed coefficients but also on the varying magnitude of changed coefficients. Secondly, embedding efficiency of matrix embedding with different radixes is formularized and investigated. A conclusion is drawn that ternary matrix embedding can achieve the highest embedding efficiency.

关键词： Embedding Efficiency Hammering Codes matrix encoding Steganographic Techniques Steganography

来源：评论

学校读者我要写书评

暂无评论

Improved Genetic Algorithm Based on Operation Order matrix encoding for Job Shop Scheduling Problem

Improved Genetic Algorithm Based on Operation Order Matrix E...

引用

2nd International Conference on Manufacturing Science and Engineering

作者： Zhan, Hong Yang, Jianjun Ju, Luyan Qingdao Technol Univ Sch Mech Engn Qingdao 266033 Peoples R China

ISBN: (纸本)9783037850312

This paper presents an improved genetic algorithm for the job shop scheduling problem. We designed a new encoding method based on operation order matrix, a matrix correspond to a chromosome, the value of elements is not repetitive, that means a processing order number in all operations of all jobs. Aiming at the features of the matrix encoding, we designed the crossover and mutation methods based on jobs, and the infeasible solutions are avoided. Through adjusting the computing method of fitness value, the improved genetic algorithm takes on some self adapting capability. The proposed approach is tested on some standard instances and compared with two other approaches. The computation results validate the algorithm is efficient.

关键词： Job Shop Scheduling Problem Improved Genetic Algorithm Operation Order matrix encoding

来源：评论

学校读者我要写书评

暂无评论

A Novel Steganography Algorithm Based on Motion Vector and matrix encoding

A Novel Steganography Algorithm Based on Motion Vector and M...

引用

2011 IEEE 3rd International Conference on Communication Software and Networks(2011第三届通信软件与网络国际会议 ICCSN2011)

作者： HAO-BIN ZHAO LI-YI ZHONG Wei-Dong Key Laboratory of Network & Information Security of APF Engineering College of APF Xi'an710086Chin Key Laboratory of Network & Information Security of APF Engineering College of APF Xi'an 710086Chi

The modification of most traditional steganography algorithms based on motion vector is relatively high. After analyzing these steganography algorithms, we propose a novel steganography algorithm. The information is embedded into the optimal component (horizontal component or vertical component) of the motion vector with large amplitude. The main contributions of this scheme are as follows: First, our algorithm decreases the modification rate of motion vector by using the matrix encoding technique;second, the video quality is high, because we select the optimal component of the motion vector by using phase angle to embed information. The simulation results show that the proposed algorithm can not only decrease the modification rate of motion vector, but also achieve high video quality and embedding capacity.

关键词： video steganography motion vector matrix encoding modification rate

来源：评论

学校读者我要写书评

暂无评论

A Novel Steganography Algorithm Based on Motion Vector and matrix encoding

A Novel Steganography Algorithm Based on Motion Vector and M...

引用

2011 IEEE 3rd International Conference on Communication Software and Networks(ICCSN 2011)

作者： HAO-BIN Key Laboratory of Network& Information Security of APF, Engineering College of APF,Xi’an 710086,China ZHAO LI-YI Key Laboratory of Network& Information Security of APF, Engineering College of APF,Xi’an 710086,China ZHONG Wei-Dong Key Laboratory of Network& Information Security of APF, Engineering College of APF,Xi’an 710086,China

The modification of most traditional steganography algorithms based on motion vector is relatively *** analyzing these steganography algorithms,we propose a novel steganography *** information is embedded into the optimal component(horizontal component or vertical component)of the motion vector with large *** main contributions of this scheme are as follows:First,our algorithm decreases the modification rate of motion vector by using the matrix encoding technique;second,the video quality is high,because we select the optimal component of the motion vector by using phase angle to embed *** simulation results show that the proposed algorithm can not only decrease the modification rate of motion vector,but also achieve high video quality and embedding capacity.

关键词： video steganography motion vector matrix encoding modification rate

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：