Wanjie Li

IHCP: Image Hiding Against Blind Compression Based on Quality Prediction

Hao Cao, Hongxia Wang, Yulin He, Wanjie Li

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Constructing Immune-Cover for Improving Holistic Security of Spatial Adaptive Steganography

Yijing Chen, Hongxia Wang, Wanjie Li

The cover image with strong resistance against embedding distortion has promise for improving the holistic security of steganography. However, existing methods use the vulnerability of Convolutional Neural Network (CNN) to construct the enhanced cover which can only deceive the target CNN-based steganalyzer, …

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A Steganography Immunoprocessing Framework Against CNN-Based and Handcrafted Steganalysis

Yijing Chen, Hongxia Wang, Wanjie Li, Wenshan Li

Performing post-processing on the stego image has promise for improving the steganography security. Nevertheless, the existing post-processing schemes neglect the characteristics of the stego image, which lack strong theoretical interpretability. Moreover, existing schemes do not fully consider the holistic steganography security against …

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From Cover to Immucover: Adversarial Steganography via Immunized Cover Construction

Wanjie Li, Yijing Chen

Recent advancements in image steganography demonstrate that reasonable cover enhancement approaches can effectively improve the security performance of steganography. However, the existing proposals based on adversarial steganography against targeted steganalyzers are insufficient in terms of eliminating or reducing anomalous pixels caused by …

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Content-adaptive Adversarial Embedding for Image Steganography Using Deep Reinforcement Learning

Jie Luo, Peisong He, Jiayong Liu, Hongxia Wang et autres

Recently, adversarial perturbations have been used to reassign cost which can enhance the security of steganography, called as adversarial embedding. However, existing methods selected costs to be modified by self-defined rules which were hard to achieve the optimal security against steganalyzers. In …

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Constructing Immunized Stego-Image for Secure Steganography via Artificial Immune System

Wanjie Li, Yijing Chen, Sani M. Abdullahi, Jie Luo

Adaptive image steganography is the process of embedding secret messages into undetectable regions of a cover image through the design of a distortion function by a steganographer. Since the state-of-the-art steganalyzers are mainly based on image residual analysis, it is reasonable to …

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Cost Reassignment for Improving Security of Adaptive Steganography Using an Artificial Immune System

Yijing Chen, Wanjie Li, Jie Luo

The cost function is crucial to the security of adaptive image steganography, However, some existing cost functions are heuristically designed and hard to be optimal in the undetectability against the evolving steganalyzer. In this letter, we propose a cost reassignment algorithm for …

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Study on AC Harmonic Characteristics of Netherland ±525kV/2GW MMC-HVDC System for Offshore Wind Farms Integration

Junhui Ren, Wanjie Li, Shunan Zhang

At present, Modular Multilevel Converter based High Voltage Direct Current (MMC-HVDC) is the typical solution for large-scale and long-distance offshore wind farms integration. And study on AC harmonic characteristics of MMC-HVDC is one of the important contents to ensure that the system …

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Experimental research on a novel optic fiber sensor based on OTDR for landslide monitoring

Yong Zheng, Zheng-Wei Zhu, Wanjie Li, Dongming Gu et autres

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Investigation on the multi‐DoF 3‐D model and levitation behaviour of radial‐type superconducting magnetic bearing

Liwang Ai, Guomin Zhang, Wanjie Li, Qingquan Qiu et autres

It is crucial to calculate the levitation force and model the levitation behaviour in the designation of superconducting magnetic bearing (SMB). At present, the related research focuses on the single degree of freedom (DoF) levitation behaviour of the SMB independently, for instance …

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Review and comparative study of strain-displacement conversion methods used in fiber Bragg grating-based inclinometers

Yong Zheng, Zheng-Wei Zhu, Xing Yi, Wanjie Li

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Experimental study on a parallel-series connected fiber-optic displacement sensor for landslide monitoring

Yong Zheng, Da Yu Huang, Zheng-Wei Zhu, Wanjie Li

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