Results 151 to 160 of about 769 (190)

Passive image forensics using universal techniques: a review

Artificial Intelligence Review, 2021
Digital tamper detection is a substantial research area of image analysis that identifies the manipulation in the image. This domain has matured with time and incredible accuracy in the last five years using machine learning and deep learning-based approaches.
Neeraj Mohan, Surbhi Gupta
exaly   +2 more sources

A Survey of Passive Image Forensics

Communications in Computer and Information Science, 2012
Over the past years, digital images have been widely used in the Internet and many other applications. As image processing techniques are developing rapidly, tampering digital images without leaving any obvious traces becomes easier and easier. Passive image forensics is a technology of detecting image authenticity and source without relying on any pre-
Liping Sun, Li Hongjiao
exaly   +2 more sources

A survey of passive technology for digital image forensics

Frontiers of Computer Science, 2007
Over the past years, digital images have been widely used in the Internet and other applications. Whilst image processing techniques are developing at a rapid speed, tampering with digital images without leaving any obvious traces becomes easier and easier. This may give rise to some problems such as image authentication. A new passive tech- nology for
Jiwu Huang, Weiqi Luo, Zhenhua Qu
exaly   +2 more sources

Spatiotemporal Trident Networks: Detection and Localization of Object Removal Tampering in Video Passive Forensics

IEEE Transactions on Circuits and Systems for Video Technology, 2021
With the development of video and image processing technology, the field of video tampering forensics is facing enormous challenges. Specifically, as the fundamental basis of judicial forensics, passive forensics for object removal video forgery is particularly essential.
Dongjin Yu, Ye Yao, Quanxin Yang
exaly   +2 more sources

A MCEA based passive forensics scheme for detecting frame-based video tampering

Digital Investigation, 2012
Without the use of digital signature or digital watermark, video passive forensics only utilizes the statistical characteristics of digital video to verify its integrity and authenticity. For frame-based video tampering, it usually suffers from double MPEG compression.
Ningbo Zhu, Gaobo Yang, Qiong Dong
exaly   +2 more sources

Passive Forensics Method to Detect Tampering for Double JPEG Compression Image

2011 IEEE International Symposium on Multimedia, 2011
A passive forensics method to detect tampering for double JPEG compression image is proposed. In the proposed method, inconsistency of quality factors is used to detect double JPEG compression, and then a passive forensics approach to detect tampering and locate tampered area for tampered JPEG images is proposed.
Zhenli Liu, Xiaofeng Wang, Jing Chen
exaly   +2 more sources

Image Authentication Using Active Watermarking and Passive Forensics Techniques

Studies in Computational Intelligence, 2011
The primary reason for the requirement of authenticating images stems from the increasing amount of doctored images that are presented as accurate representations of real-life events, but are later discovered to be faked. The history of manipulating images reaches back almost as far as photography itself, and with the ease of use and availability of ...
Anthony Ts Ho, Ho Anthony T S
exaly   +4 more sources

A DWT-DCT Based Passive Forensics Method for Copy-Move Attacks

2011 Third International Conference on Multimedia Information Networking and Security, 2011
A passive forensics method for detecting copy-move attacks was proposed. In the proposed method, tested image was segmented into non-overlapping blocks, DCT and DWT are applied to each image block to extract features, and then compare the statistics of each image block to detection replication regions.
Shangping Wang
exaly   +2 more sources

Passive forensics for copy-move image forgery using a method based on DCT and SVD

Forensic Science International, 2013
As powerful image editing tools are widely used, the demand for identifying the authenticity of an image is much increased. Copy-move forgery is one of the tampering techniques which are frequently used. Most existing techniques to expose this forgery need to improve the robustness for common post-processing operations and fail to precisely locate the ...
Jichang Guo
exaly   +3 more sources

A passive multi-purpose scheme based on periodicity analysis of CFA artifacts for image forensics

Journal of Visual Communication and Image Representation, 2014
We propose a passive multi-purpose scheme for photographic image (PIM) detection and a device class identification method. The motivation for the scheme is the periodicity phenomenon caused by color filter arrays (CFAs) and the demosaicing process. The phenomenon only occurs in the Fourier spectrum in PIMs. The proposed scheme exploits prediction error
Guo-Shiang Lin, Shen-Chuan Tai
exaly   +2 more sources