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Scattering, especially multiple scattering, is a well known problem in imaging, ranging from astronomy to medicine. In particular it is often desirable to be able to perform non-invasive imaging through turbid and/or opaque media. Many…

Optics · Physics 2024-04-23 Harry Penketh , Jacopo Bertolotti

Face recognition has recently become ubiquitous in many scenes for authentication or security purposes. Meanwhile, there are increasing concerns about the privacy of face images, which are sensitive biometric data that should be carefully…

Cryptography and Security · Computer Science 2022-01-31 Qi Zhao , Huanhao Li , Zhipeng Yu , Chi Man Woo , Tianting Zhong , Shengfu Cheng , Yuanjin Zheng , Honglin Liu , Jie Tian , Puxiang Lai

As long as human beings exist on this earth, there will be confidential images intended for limited audience. These images have to be transmitted in such a way that no unauthorized person gets knowledge of them. DNA sequences play a vital…

Cryptography and Security · Computer Science 2016-11-28 Grasha Jacob , A. Murugan

The need for fast and strong image cryptosystems motivates researchers to develop new techniques to apply traditional cryptographic primitives in order to exploit the intrinsic features of digital images. One of the most popular and mature…

Cryptography and Security · Computer Science 2016-01-01 Leo Yu Zhang , Yuansheng Liu , Kwok-Wo Wong , Fabio Pareschi , Yushu Zhang , Riccardo Rovatti , Gianluca Setti

We describe a multispeckle dynamic light scattering technique capable of resolving the motion of scattering sites in cases that this motion changes systematically with time. The method is based on the visibility of the speckle pattern…

Soft Condensed Matter · Physics 2007-05-23 R. Bandyopadhyay , A. S. Gittings , S. S. Suh , P. K. Dixon , D. J. Durian

Snapshot multi-dimensional imaging offers a promising alternative to traditional low-dimensional imaging techniques by enabling the simultaneous capture of spatial, spectral, polarization, and other information in a single shot for improved…

This paper investigates the use of dynamical chaotic systems to encrypt and exchange images between different devices. Two devices were used to simulate the Cubic Map, having the same set of initial conditions, to generate an encryption…

Cryptography and Security · Computer Science 2019-10-15 T. A. Santos , E. P. Magalhaes , D. R. Fiorio , E. G. Nepomuceno

This work proposes a high-capacity scheme for separable reversible data hiding in encrypted images. At the sender side, the original uncompressed image is encrypted using an encryption key. One or several data hiders use the MSB of some…

Cryptography and Security · Computer Science 2016-12-14 M. Hassan Najafi , David J. Lilja

Neural channel decoder, as a data-driven channel decoding strategy, has shown very promising improvement on error-correcting capability over the classical methods. However, the success of those deep learning-based decoder comes at the cost…

Information Theory · Computer Science 2026-05-20 Chengwei Zhang , Yifan Du , Siyu Liao

In this paper we propose a novel image encryption scheme. The proposed method is based on the chaos theory. Our cryptosystem uses the chaos theory to define a dynamic chaotic Look-Up Table (LUT) to compute the new value of the current pixel…

Cryptography and Security · Computer Science 2016-02-11 Med Karim Abdmouleh , Ali Khalfallah , Med Salim Bouhlel

Neural network inference typically operates on raw input data, increasing the risk of exposure during preprocessing and inference. Moreover, neural architectures lack efficient built-in mechanisms for directly authenticating input data.…

Cryptography and Security · Computer Science 2025-06-04 Peter David Fagan

To protect image contents, most existing encryption algorithms are designed to transform an original image into a texture-like or noise-like image, which is, however, an obvious visual sign indicating the presence of an encrypted image,…

Computer Vision and Pattern Recognition · Computer Science 2018-01-03 Xintao Duan , Haoxian Song , En Zhang , Jingjing Liu

Deep neural networks (DNNs) are demonstrated to be vulnerable to universal perturbation, a single quasi-perceptible perturbation that can deceive the DNN on most images. However, the previous works are focused on using universal…

Cryptography and Security · Computer Science 2023-11-06 Donghua Wang , Wen Yao , Tingsong Jiang , Xiaoqian Chen

While disk encryption is suitable for use in most situations where confidentiality of disks is required, stronger guarantees are required in situations where adversaries may employ coercive tactics to gain access to cryptographic keys.…

Cryptography and Security · Computer Science 2021-10-12 Kyle Fredrickson , Austen Barker , Darrell D. E. Long

A channel should be built to transmit information from one place to another. Imaging is 2 or higher dimensional information communication. Conventionally, an imaging channel comprises a lens and free spaces of its both sides. The transfer…

Cryptography is always very important in data origin authentications, entity authentication, data integrity and confidentiality. In recent years, a variety of chaotic cryptographic schemes have been proposed. These schemes have typical…

Cryptography and Security · Computer Science 2012-02-08 Sodeif Ahadpour , Yaser Sadra , Zahra ArastehFard

A cascaded phase-only mask architecture (or an optical diffractive neural network) can be employed for different optical information processing tasks such as pattern recognition, orbital angular momentum (OAM) mode conversion, image…

Computer Vision and Pattern Recognition · Computer Science 2020-02-26 Yang Gao , Shuming Jiao , Juncheng Fang , Ting Lei , Zhenwei Xie , Xiaocong Yuan

Digital steganography or data hiding has emerged as a new area of research in connection to the communication in secured channel as well as intellectual property protection for multimedia signals. The redundancy in image representation can…

Cryptography and Security · Computer Science 2012-07-12 Tirtha sankar Das , Ayan K. Sau , V. H. Mankar , Subir K. Sarkar

The vulnerability of machine learning systems to adversarial attacks questions their usage in many applications. In this paper, we propose a randomized diversification as a defense strategy. We introduce a multi-channel architecture in a…

Machine Learning · Computer Science 2019-04-02 Olga Taran , Shideh Rezaeifar , Taras Holotyak , Slava Voloshynovskiy

We consider the problem of securely and robustly embedding covert messages into an image-based diffusion model's output. The sender and receiver want to exchange the maximum amount of information possible per diffusion sampled image while…

Cryptography and Security · Computer Science 2025-12-22 Luke A. Bauer , Wenxuan Bao , Vincent Bindschaedler