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CNNs perform remarkably well when the training and test distributions are i.i.d, but unseen image corruptions can cause a surprisingly large drop in performance. In various real scenarios, unexpected distortions, such as random noise,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Tonmoy Saikia , Cordelia Schmid , Thomas Brox

Recently, an image encryption scheme based on a compound chaotic sequence was proposed. In this paper, the security of the scheme is studied and the following problems are found: (1) a differential chosen-plaintext attack can break the…

Cryptography and Security · Computer Science 2009-12-21 Chengqing Li , Shujun Li , Guanrong Chen , Wolfgang A. Halang

We present a novel approach to post-quantum cryptography that employs directed-graph decryption of noise-enhanced high-memory convolutional codes. The proposed construction generates random-like generator matrices that effectively conceal…

Cryptography and Security · Computer Science 2025-12-04 Meir Ariel

This paper proposes a video encryption algorithm using RSA and Pseudo Noise (PN) sequence, aimed at applications requiring sensitive video information transfers. The system is primarily designed to work with files encoded using the Audio…

Cryptography and Security · Computer Science 2020-09-07 Aman Chadha , Sushmit Mallik , Ankit Chadha , Ravdeep Johar , M. Mani Roja

We introduce a paradigm for nonlocal sparsity reinforced deep convolutional neural network denoising. It is a combination of a local multiscale denoising by a convolutional neural network (CNN) based denoiser and a nonlocal denoising based…

Image and Video Processing · Electrical Eng. & Systems 2018-08-15 Cristóvão Cruz , Alessandro Foi , Vladimir Katkovnik , Karen Egiazarian

Massive human-related data is collected to train neural networks for computer vision tasks. A major conflict is exposed relating to software engineers between better developing AI systems and distancing from the sensitive training data. To…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Fusheng Hao , Fengxiang He , Yikai Wang , Fuxiang Wu , Jing Zhang , Jun Cheng , Dacheng Tao

Recently, a chaotic image encryption algorithm based on perceptron model was proposed. The present paper analyzes security of the algorithm and finds that the equivalent secret key can be reconstructed with only one pair of…

Cryptography and Security · Computer Science 2011-11-08 Yu Zhang , Chengqing Li , Qin Li , Dan Zhang , Shi Shu

Deep neural networks (DNNs) have achieved remarkable success in a variety of computer vision tasks, where massive labeled images are routinely required for model optimization. Yet, the data collected from the open world are unavoidably…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Peng Cui , Yang Yue , Zhijie Deng , Jun Zhu

Supervised deep networks have achieved promisingperformance on image denoising, by learning image priors andnoise statistics on plenty pairs of noisy and clean images. Unsupervised denoising networks are trained with only noisy images.…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Jun Xu , Yuan Huang , Ming-Ming Cheng , Li Liu , Fan Zhu , Zhou Xu , Ling Shao

Deep neural networks, although shown to be a successful class of machine learning algorithms, are known to be extremely unstable to adversarial perturbations. Improving the robustness of neural networks against these attacks is important,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-29 Seyed-Mohsen Moosavi-Dezfooli , Ashish Shrivastava , Oncel Tuzel

Image denoising is an essential part of many image processing and computer vision tasks due to inevitable noise corruption during image acquisition. Traditionally, many researchers have investigated image priors for the denoising, within…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Jae Woong Soh , Nam Ik Cho

The rise of digital medical imaging, like MRI and CT, demands strong encryption to protect patient data in telemedicine and cloud storage. Chaotic systems are popular for image encryption due to their sensitivity and unique characteristics,…

Cryptography and Security · Computer Science 2025-10-14 Junhua Zhou , Quanjun Li , Weixuan Li , Guang Yu , Yihua Shao , Yihang Dong , Mengqian Wang , Zimeng Li , Changwei Gong , Xuhang Chen

Recently, an image encryption algorithm using block-based scrambling and image filtering has been proposed by Hua et al. In this paper, we analyze the security problems of the encryption algorithm in detail and break the encryption by a…

Cryptography and Security · Computer Science 2019-01-01 Feng Yu , Xinhui Gong , Hanpeng Li , Xiaohong Zhao

In this paper, detection of deception attack on deep neural network (DNN) based image classification in autonomous and cyber-physical systems is considered. Several studies have shown the vulnerability of DNN to malicious deception attacks.…

Image and Video Processing · Electrical Eng. & Systems 2020-07-10 Darpan Kumar Yadav , Kartik Mundra , Rahul Modpur , Arpan Chattopadhyay , Indra Narayan Kar

Recently deep learning-based methods have been applied in image compression and achieved many promising results. In this paper, we propose an improved hybrid layered image compression framework by combining deep learning and the traditional…

Image and Video Processing · Electrical Eng. & Systems 2022-06-22 Haisheng Fu , Feng Liang , Bo Lei , Nai Bian , Qian zhang , Mohammad Akbari , Jie Liang , Chengjie Tu

Hyperspectral image (HSI) denoising is a crucial preprocessing procedure to improve the performance of the subsequent HSI interpretation and applications. In this paper, a novel deep learning-based method for this task is proposed, by…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Qiangqiang Yuan , Qiang Zhang , Jie Li , Huanfeng Shen , Liangpei Zhang

Recently, Deep Convolutional Neural Networks (DCNNs) including the ResNet-20 architecture have been privately evaluated on encrypted, low-resolution data with the Residue-Number-System Cheon-Kim-Kim-Song (RNS-CKKS) homomorphic encryption…

Cryptography and Security · Computer Science 2024-01-30 Vivian Maloney , Richard F. Obrecht , Vikram Saraph , Prathibha Rama , Kate Tallaksen

Robust efficient loop closure detection is essential for large-scale real-time SLAM. In this paper, we propose a novel unsupervised deep neural network architecture of a feature embedding for visual loop closure that is both reliable and…

Robotics · Computer Science 2018-05-28 Nate Merrill , Guoquan Huang

Convolutional neural networks (CNNs), one of the key architectures of deep learning models, have achieved superior performance on many machine learning tasks such as image classification, video recognition, and power systems. Despite their…

Machine Learning · Computer Science 2024-07-17 Hanxiao Lu , Zeyu Huang , Ren Wang

It is known that chaotic systems have widely been used in cryptography. Generally, floating point simulations are used to generate pseudo-random sequence of numbers. Although, it is possible to find some works on the degradation of chaotic…

Cryptography and Security · Computer Science 2018-12-27 L. G. Nardo , A. M. Lima , E. G. Nepomuceno , J. Arias-Garcia
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