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In unsecured network environments, ownership protection of digital contents, such as images, is becoming a growing concern. Different watermarking methods have been proposed to address the copyright protection of digital materials.…

Multimedia · Computer Science 2020-04-08 Mahsa Kadkhodaei , Shadrokh Samavi

This paper presents techniques for digital image watermarking based on eigenvalue decomposition of normal matrices. The introduced methods are convenient and self-explanatory, achieve satisfactory results, as well as require less and easy…

Numerical Analysis · Mathematics 2015-06-08 E. Kokabifar , G. B. Loghmani , A. Latif

Computer programming textbooks and software documentations often contain flowcharts to illustrate the flow of an algorithm or procedure. Modern OCR engines often tag these flowcharts as graphics and ignore them in further processing. In…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Shreya Shukla , Prajwal Gatti , Yogesh Kumar , Vikash Yadav , Anand Mishra

Videos are prone to tampering attacks that alter the meaning and deceive the audience. Previous video forgery detection schemes find tiny clues to locate the tampered areas. However, attackers can successfully evade supervision by…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Yangming Zhou , Qichao Ying , Xiangyu Zhang , Zhenxing Qian , Sheng Li , Xinpeng Zhang

In this paper, we introduce a simple yet effective tabular data watermarking mechanism with statistical guarantees. We show theoretically that the proposed watermark can be effectively detected, while faithfully preserving the data…

Cryptography and Security · Computer Science 2024-05-28 Hengzhi He , Peiyu Yu , Junpeng Ren , Ying Nian Wu , Guang Cheng

Content-independent watermarks and block-wise independency can be considered as vulnerabilities in semi-fragile watermarking methods. In this paper to achieve the objectives of semi-fragile watermarking techniques, a method is proposed to…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Samira Hosseini , Mojtaba Mahdavi

In today's digital landscape, the blending of AI-generated and authentic content has underscored the need for copyright protection and content authentication. Watermarking has become a vital tool to address these challenges, safeguarding…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Runyi Hu , Jie Zhang , Yiming Li , Jiwei Li , Qing Guo , Han Qiu , Tianwei Zhang

In order to protect the intellectual property (IP) of deep neural networks (DNNs), many existing DNN watermarking techniques either embed watermarks directly into the DNN parameters or insert backdoor watermarks by fine-tuning the DNN…

Cryptography and Security · Computer Science 2021-10-19 Xiangyu Zhao , Yinzhe Yao , Hanzhou Wu , Xinpeng Zhang

Polar codes are a channel coding scheme for the next generation of wireless communications standard (5G). The belief propagation (BP) decoder allows for parallel decoding of polar codes, making it suitable for high throughput applications.…

Information Theory · Computer Science 2018-07-02 Nghia Doan , Seyyed Ali Hashemi , Marco Mondelli , Warren J. Gross

Untrustworthy users can misuse image generators to synthesize high-quality deepfakes and engage in unethical activities. Watermarking deters misuse by marking generated content with a hidden message, enabling its detection using a secret…

Cryptography and Security · Computer Science 2024-01-23 Nils Lukas , Abdulrahman Diaa , Lucas Fenaux , Florian Kerschbaum

We introduce Prior-Informed Flow Matching (PIFM), a conditional flow model for graph reconstruction. Reconstructing graphs from partial observations remains a key challenge; classical embedding methods often lack global consistency, while…

Machine Learning · Computer Science 2026-01-30 Harvey Chen , Nicolas Zilberstein , Santiago Segarra

A novel video watermarking system operating in the three dimensional wavelet transform is here presented. Specifically the video sequence is partitioned into spatio temporal units and the single shots are projected onto the 3D wavelet…

Multimedia · Computer Science 2009-11-03 A. Essaouabi , F. Regragui , E. Ibnelhaj

In this paper a new approach to image watermarking in wavelet domain is presented. The idea is to hide the watermark data in blocks of the block segmented image. Two schemes are presented based on this idea by embedding the watermark data…

Information Theory · Computer Science 2010-01-05 Hamed Dehghan , S. Ebrahim Safavi

To protect the copyright of the 3D scene represented by the neural radiation field, the embedding and extraction of the neural radiation field watermark are considered as a pair of inverse problems of image transformations. A scheme for…

Cryptography and Security · Computer Science 2023-12-06 Wenquan Sun , Jia Liu , Weina Dong , Lifeng Chen , Ke Niu

This paper presents the Gradient Flow (GF) decoding for LDPC codes. GF decoding, a continuous-time methodology based on gradient flow, employs a potential energy function associated with bipolar codewords of LDPC codes. The decoding process…

Information Theory · Computer Science 2024-08-02 Tadashi Wadayama , Lantian Wei

Watermarking methods have always been effective means of protecting intellectual property, yet they face significant challenges. Although existing deep learning-based watermarking systems can hide watermarks in images with minimal impact on…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Xuan Ding , Xiu Yan , Chuanlong Xie , Yao Zhu

Contrastive learning methods have attracted considerable attention due to their remarkable success in analyzing graph-structured data. Inspired by the success of contrastive learning, we propose a novel framework for contrastive…

Machine Learning · Computer Science 2023-06-21 Xiaojuan Zhang , Jun Fu , Shuang Li

Invisible watermarks safeguard images' copyrights by embedding hidden messages only detectable by owners. They also prevent people from misusing images, especially those generated by AI models. We propose a family of regeneration attacks to…

Cryptography and Security · Computer Science 2024-11-01 Xuandong Zhao , Kexun Zhang , Zihao Su , Saastha Vasan , Ilya Grishchenko , Christopher Kruegel , Giovanni Vigna , Yu-Xiang Wang , Lei Li

We propose a watermarking method for protecting the Intellectual Property (IP) of Generative Adversarial Networks (GANs). The aim is to watermark the GAN model so that any image generated by the GAN contains an invisible watermark…

Computer Vision and Pattern Recognition · Computer Science 2022-09-09 Jianwei Fei , Zhihua Xia , Benedetta Tondi , Mauro Barni

This work studied embedding positions of digital audio watermarking in wavelet domain, to make beginners understand the nature of watermarking in a short time. Based on the theory of wavelet transform, this paper analyzed statistical…

Cryptography and Security · Computer Science 2020-10-23 Yangxia Hu , Maode Ma , Wenhuan Lu , Neal N. Xiong , Jianguo Wei