Results 171 to 180 of about 229 (211)

Locality sensitive hashing for tampering detection in automotive systems

Proceedings of the 15th International Conference on Availability, Reliability and Security, 2020
In modern auto vehicles we find dozens of Electronic Control Units (ECUs) running several hundred MBs of code, alongside sophisticated dashboards with integrated wireless communications. While this technological advancement has brought upon a wide range of advantages and integrated features, it also exposed the modern vehicle to significant cyber ...
Roland Bolboaca, Teri Lenard, Béla Genge, Piroska Haller   +3 more
openaire   +1 more source

Localization of sparse image tampering via random projections

2008 15th IEEE International Conference on Image Processing, 2008
Hashes can be used to provide authentication of multimedia contents. In the case of images, a hash can be used to detect whether the data has been modified in an illegitimate way. When the authentication check fails, it might be useful to localize the tampering in the spatial domain.
TAGLIASACCHI, MARCO, VALENZISE, GIUSEPPE, TUBARO, STEFANO   +2 more
openaire   +3 more sources

Two-Layer Binary Image Authentication With Tampering Localization

2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
In this paper, a novel two-layer blind binary image authentication scheme is proposed, in which the first layer is targeted at the overall authentication and the second layer is targeted at identifying the tampering locations. The "flippability" of a pixel is determined by the three "connectivity-preserving" transition criterions described in H.
Huijuan Yang, Alex C. Kot
openaire   +1 more source

A Secure Hierarchical Fragile Watermarking Method with Tamper Localization

First International Multi-Symposiums on Computer and Computational Sciences (IMSCCS'06), 2006
Several image authentication schemes are either vulnerable to attacks or sacrifice localization accuracy to improve security. In this paper, we proposed a scheme that not only thwarts all kinds of attacks such as vector quantization (VQ) and oracle attack in order to satisfy the security but also ensures superior accuracy of tamper localization.
Xianhai Zhang, Yongtian Yang, Yan Zhu 0010   +2 more
openaire   +1 more source

A Comprehensive Survey of Detection of Tampered Video and Localization of Tampered Frame.

Wirel. Pers. Commun., 2022
T. Anbu, M. Milton Joe, G. Murugeswari
openaire   +2 more sources

Quaternion-Based Image Hashing for Adaptive Tampering Localization

IEEE Transactions on Information Forensics and Security, 2016
Image-hashing-based tampering detection methods have been widely studied with continuous advancements. However, most of existing models are designed for a specific tampering. In this paper, we propose a novel quaternion-based image hashing to detect almost all types of tampering, including color changing, copy move, splicing, and so on.
Cai-Ping Yan, Chi-Man Pun, Xiaochen Yuan
openaire   +1 more source

Tamper localization of the medical images based on fragile watermarking

2017 25th Signal Processing and Communications Applications Conference (SIU), 2017
Flexible usage and easy acquisition of image processing software has made "tamper localization in medical images" a popular area. Medical Image Watermarking (MIW), which is one of the recommended methods in this area, relies on embedding additional information into the original image. In general, the medical image is separated into two parts called ROI
Arda Ustubioglu, Güzin Ulutas, Beste Ustubioglu   +2 more
openaire   +2 more sources

A feature-based approach for image tampering detection and localization

2014 IEEE International Workshop on Information Forensics and Security (WIFS), 2014
We propose a new camera-based technique for tampering localization. A large number of blocks are extracted off-line from training images and characterized through features based on a dense local descriptor. A multidimensional Gaussian model is then fit to the training features. In the testing phase, the image is analyzed in sliding-window modality: for
VERDOLIVA, LUISA, COZZOLINO, DAVIDE, POGGI, GIOVANNI   +2 more
openaire   +2 more sources

Multimedia Tampering Localization Based on the Perturbation in Reverse Processing

2003
A new fragile watermarking scheme, which exploits the perturbation in reverse processing, is proposed to enhance the tampering localizability of multimedia authentication. In verifying data integrity or authenticating signatures, the new method performs the reverse processing of watermark embedding.
Xianfeng Zhao, Weinong Wang, Kefei Chen
openaire   +2 more sources

A New Watermarking Method for Video Authentication with Tamper Localization

2020
In this paper, a new method for video authentication is proposed. The method is based on construction of watermark images, which serve as a secondary carrier for the binary sequence. A unique watermark image is embedded into the coefficients of Discrete Wavelet Transform of each video frame.
openaire   +2 more sources