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Video compression has been investigated by means of analysis-synthesis, and more particularly by means of inpainting. The first part of our approach has been to develop the inpainting of DCT coefficients in an image. This has shown good…

Information Theory · Computer Science 2014-04-17 Matthieu Moinard , Isabelle Amonou , Pierre Duhamel , Patrice Brault

Watermarking is a technique to help identify the source of data points, which can be used to help prevent the misuse of protected datasets. Existing methods on code watermarking, leveraging the idea from the backdoor research, embed…

Cryptography and Security · Computer Science 2025-09-23 Yuan Xiao , Yuchen Chen , Shiqing Ma , Haocheng Huang , Chunrong Fang , Yanwei Chen , Weisong Sun , Yunfeng Zhu , Xiaofang Zhang , Zhenyu Chen

In this paper, we deal with the proof of ownership or legitimate usage of a digital content, such as an image, in order to tackle the illegitimate copy. The proposed scheme based on the combination of the watermark-ing and cancelable…

Cryptography and Security · Computer Science 2015-03-17 Morgan Barbier , Jean-Marie Le Bars , Christophe Rosenberger

With the rapid advancements in digital imaging systems and networking, low-cost hand-held image capture devices equipped with network connectivity are becoming ubiquitous. This ease of digital image capture and sharing is also accompanied…

Multimedia · Computer Science 2019-06-20 Vinay Verma , Nikita Agarwal , Nitin Khanna

Recent advances in image authenticity have primarily focused on deepfake detection and localization, leaving recovery of tampered contents for factual retrieval relatively underexplored. We propose a unified hidden-code recovery framework…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Yuan-Chih Chen , Chun-Shien Lu

This paper presents a robust and transparent scheme of watermarking that exploits the human visual systems' sensitivity to frequency, along with local image characteristics obtained from the spatial domain. The underlying idea is generating…

Cryptography and Security · Computer Science 2007-05-23 Arvind Parthasarathy

Recently, stable diffusion (SD) models have typically flourished in the field of image synthesis and personalized editing, with a range of photorealistic and unprecedented images being successfully generated. As a result, widespread…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Zhiyuan Ma , Guoli Jia , Biqing Qi , Bowen Zhou

Convolutional Neural Network is good at image classification. However, it is found to be vulnerable to image quality degradation. Even a small amount of distortion such as noise or blur can severely hamper the performance of these CNN…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Md Tahmid Hossain , Shyh Wei Teng , Dengsheng Zhang , Suryani Lim , Guojun Lu

Digital Watermarking is an extremely wide aspect of information security, either by its applications, by its properties, or by its designs. In particular, a lot of research has been made about video watermarking and it can make it quite…

Image and Video Processing · Electrical Eng. & Systems 2019-08-26 Romain Artru , Alexandre Gouaillard , Touradj Ebrahimi

In this job we have introduced a filtered adaptive technique that allows highlighting selective seismic events according to its polarization. This technique consists in the implementation of a polarizing filter based on the Single Value…

Geophysics · Physics 2013-11-18 Luque Rubén , Hurtado Nuri y Ovalles Asdrúbal

This paper investigates the multiplicative spread spectrum watermarking method for the image. The information bit is spreaded into middle-frequency Discrete Cosine Transform (DCT) coefficients of each block of an image using a generated…

Multimedia · Computer Science 2017-05-03 Nematollah Zarmehi , Mohammad Reza Aref

Discrete transforms play an important role in many signal processing applications, and low-complexity alternatives for classical transforms became popular in recent years. Particularly, the discrete cosine transform (DCT) has proven to be…

Signal Processing · Electrical Eng. & Systems 2020-06-23 D. R. Canterle , T. L. T. da Silveira , F. M. Bayer , R. J. Cintra

Popular convolutional neural networks mainly use paired images in a supervised way for image watermark removal. However, watermarked images do not have reference images in the real world, which results in poor robustness of image watermark…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Chunwei Tian , Menghua Zheng , Tiancai Jiao , Wangmeng Zuo , Yanning Zhang , Chia-Wen Lin

Digital image watermarking is the process of embedding and extracting a watermark covertly on a cover-image. To dynamically adapt image watermarking algorithms, deep learning-based image watermarking schemes have attracted increased…

Multimedia · Computer Science 2020-07-07 Xin Zhong , Pei-Chi Huang , Spyridon Mastorakis , Frank Y. Shih

We present a robust neural watermarking framework for scientific data integrity, targeting high-dimensional fields common in climate modeling and fluid simulations. Using a convolutional autoencoder, binary messages are invisibly embedded…

Machine Learning · Computer Science 2025-06-17 Krti Tallam

Prior to encoding color images for RGB full-color, Bayer color filter array (CFA), and digital time delay integration (DTDI) CFA images, performing chroma subsampling on their converted chroma images is necessary and important. In this…

Image and Video Processing · Electrical Eng. & Systems 2020-09-24 Kuo-Liang Chung , Szu-Ni Chen , Yu-Ling Lee , Chao-Liang Yu

Superimposing visible watermarks on images provides a powerful weapon to cope with the copyright issue. Watermark removal techniques, which can strengthen the robustness of visible watermarks in an adversarial way, have attracted increasing…

Computer Vision and Pattern Recognition · Computer Science 2021-08-29 Jing Liang , Li Niu , Fengjun Guo , Teng Long , Liqing Zhang

In JPEG (DCT based) compresses image data by representing the original image with a small number of transform coefficients. It exploits the fact that for typical images a large amount of signal energy is concentrated in a small number of…

Graphics · Computer Science 2014-02-13 Sukhpal Singh

Most robot mapping techniques for lidar sensors tessellate the environment into pixels or voxels and assume uniformity of the environment within them. Although intuitive, this representation entails disadvantages: The resulting grid maps…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Alexander Schaefer , Lukas Luft , Wolfram Burgard

Watermarking is a commonly used strategy to protect creators' rights to digital images, videos and audio. Recently, watermarking methods have been extended to deep learning models -- in principle, the watermark should be preserved when an…

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