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Secure covert communication in hostile environments requires simultaneously achieving invisibility, provable security guarantees, and robustness against informed adversaries. This paper presents a novel hybrid steganographic framework that…

Cryptography and Security · Computer Science 2025-07-08 Obinna Omego , Michal Bosy

A novel learning solution to image steganalysis based on the green learning paradigm, called Green Steganalyzer (GS), is proposed in this work. GS consists of three modules: 1) pixel-based anomaly prediction, 2) embedding location…

Image and Video Processing · Electrical Eng. & Systems 2023-06-08 Yao Zhu , Xinyu Wang , Hong-Shuo Chen , Ronald Salloum , C. -C. Jay Kuo

We theoretically implement a strategy from quantum computation architectures to simulate Stuart-Landau oscillator dynamics in all-to-all connected networks, also referred to as complete graphs. The technique builds upon the triad structure…

Quantum Physics · Physics 2023-01-31 Stella L. Harrison , Helgi Sigurdsson , Pavlos G. Lagoudakis

In the realm of advanced steganography, the scale of the model typically correlates directly with the resolution of the fundamental grid, necessitating the training of a distinct neural network for message extraction. This paper proposes an…

Cryptography and Security · Computer Science 2024-06-05 Zhong Yangjie , Liu Jia , Ke Yan , Liu Meiqi

Multi-label image recognition is a fundamental yet practical task because real-world images inherently possess multiple semantic labels. However, it is difficult to collect large-scale multi-label annotations due to the complexity of both…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Tianshui Chen , Tao Pu , Hefeng Wu , Yuan Xie , Liang Lin

Spectral computed tomography (CT) is an emerging technology, that generates a multienergy attenuation map for the interior of an object and extends the traditional image volume into a 4D form. Compared with traditional CT based on…

Medical Physics · Physics 2022-07-27 Xiang Chen , Wenjun Xia , Ziyuan Yang , Hu Chen , Yan Liu , Jiliu Zhou , Yi Zhang

The field of steganography has experienced a surge of interest due to the recent advancements in AI-powered techniques, particularly in the context of multimodal setups that enable the concealment of signals within signals of a different…

Cryptography and Security · Computer Science 2023-03-16 Jaume Ros , Margarita Geleta , Jordi Pons , Xavier Giro-i-Nieto

Sparse-view computed tomography (CT) is an effective method to reduce the radiation exposure in medical imaging. To reduce the severe streaking artifacts that occur in reconstructed images due to violation of the Nyquist/Shannon sampling…

Medical Physics · Physics 2026-03-17 Huiying Li , Yizhuang Song

Sparse-view computed tomography (CT) is known as a widely used approach to reduce radiation dose while accelerating imaging through lowered projection views and correlated calculations. However, its severe imaging noise and streaking…

Image and Video Processing · Electrical Eng. & Systems 2021-01-20 Yitong Liu , Ken Deng , Chang Sun , Hongwen Yang

In recent years, arbitrary image style transfer has attracted more and more attention. Given a pair of content and style images, a stylized one is hoped that retains the content from the former while catching style patterns from the latter.…

Computer Vision and Pattern Recognition · Computer Science 2023-01-03 Chiyu Zhang , Jun Yang , Zaiyan Dai , Peng Cao

In this paper, we introduce a new heuristics for global optimization in scenarios where extensive evaluations of the cost function are expensive, inaccessible, or even prohibitive. The method, which we call Landscape-Sketch-and-Step (LSS),…

Machine Learning · Computer Science 2023-10-06 Rafael Monteiro , Kartik Sau

Text-to-image models have recently made significant advances in generating realistic and semantically coherent images, driven by advanced diffusion models and large-scale web-crawled datasets. However, these datasets often contain…

Machine Learning · Computer Science 2025-10-29 Byeonghu Na , Mina Kang , Jiseok Kwak , Minsang Park , Jiwoo Shin , SeJoon Jun , Gayoung Lee , Jin-Hwa Kim , Il-Chul Moon

A two-step shape reconstruction method for diffuse optical tomography (DOT) is presented which uses adjoint fields and level sets. The propagation of near-infrared photons in tissue is modeled by the time-dependent linear transport…

Numerical Analysis · Mathematics 2025-10-20 Oliver Dorn

A steganographic method based on the chaotic fractional map and in the DCT domain is proposed. This method embeds a secret message in some high frequency coefficients of the image using a 128-bit private key and a chaotic fractional map…

Multimedia · Computer Science 2019-08-30 A. Soria-Lorente , E. Pérez-Michel , E. Avila-Domenech

Self-training via pseudo labeling is a conventional, simple, and popular pipeline to leverage unlabeled data. In this work, we first construct a strong baseline of self-training (namely ST) for semi-supervised semantic segmentation via…

Computer Vision and Pattern Recognition · Computer Science 2022-03-04 Lihe Yang , Wei Zhuo , Lei Qi , Yinghuan Shi , Yang Gao

Image steganography is widely used to protect user privacy and enable covert communication. However, it can also be abused by the adversary as a covert channel to bypass content moderation, disseminate harmful semantics, and even hide…

Cryptography and Security · Computer Science 2026-05-08 Zhen Sun , Zongmin Zhang , Leyi Sheng , Yule Liu , Yifan Liao , Ke Li , Xinhu Zheng , Jiaheng Wei , Wenyuan Yang , Xinlei He

Recent work (Baluja, 2017) showed that using a pair of deep encoders and decoders, embedding a full-size secret image into a container image of the same size is achieved. This method distributes the information of the secret image across…

Cryptography and Security · Computer Science 2019-01-29 Parisa Babaheidarian , Mark Wallace

Hyperspectral image (HSI) denoising is a crucial preprocessing procedure for the subsequent HSI applications. Unfortunately, though witnessing the development of deep learning in HSI denoising area, existing convolution-based methods face…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Miaoyu Li , Ying Fu , Yulun Zhang

Spatio-temporal graph neural networks (STGNN) have emerged as the dominant model for spatio-temporal graph (STG) forecasting. Despite their success, they fail to model intrinsic uncertainties within STG data, which cripples their…

Machine Learning · Computer Science 2024-03-12 Haomin Wen , Youfang Lin , Yutong Xia , Huaiyu Wan , Qingsong Wen , Roger Zimmermann , Yuxuan Liang

Deep learning-based image compression has made great progresses recently. However, many leading schemes use serial context-adaptive entropy model to improve the rate-distortion (R-D) performance, which is very slow. In addition, the…

Image and Video Processing · Electrical Eng. & Systems 2023-09-07 Haisheng Fu , Feng Liang , Jie Liang , Yongqiang Wang , Guohe Zhang , Jingning Han