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Images super-resolution using improved generative adversarial networks 3

Images super-resolution using improved generative adversaria...

3rd International Conference on Intelligent control, measurement and Signal Processing and Intelligent Oil Field, ICMSP 2021

作者： Hu, Yuliang Jing, Mingli Jiao, Yao Sun, Kun Xi'An Shiyou University School of Electrical Engineering Xi'an China Shaanxi Provincial Key Lab of Oil and Gas Well Measurement and Control Technology Xi’an China

ISBN: (纸本)9781665437158

Image super-resolution (ISR) is an important image processing technology to improve image resolution in computer vision tasks. The purpose of this paper is to study the super-resolution reconstruction of single image based on the depth learning method. Aiming at the problem that the existing pixel loss-based super-resolution image reconstruction algorithms have poor reconstruction effect on high-frequency details, such as textures, a lighter algorithm is proposed on the basis of the existing deep learning method (SRGAN). Firstly, the feedback structure is applied in the generator to process the feedback information and enhance the high frequency information of the image. Secondly, a general residual feature aggregation framework (RFA), is applied to make full use of the residual information of each layer to improve the quality of the SR image. Finally, the solution space of the function is further reduced and the image quality is improved by using a new loss function. The algorithms are implemented on pytorch framework. The experimental results on VOC2012 data sets show that, compared with the original SRGAN algorithm, the peak signal-to-noise ratio (PSNR) and structural similarity (SSIM) of the proposed algorithm on the benchmark data set Set5 are improved by 0.83dB and 0.028, respectively, on Set14, the PSNR and SSIM of the proposed algorithm are improved by 0.56dB and 0.009, on Urban100, the PSNR and SSIM of the proposed algorithm are improved by 0.51dB and 0.031, on BSD100, the PSNR and SSIM of the proposed algorithm are improved by 0.33dB and 0.014, and compared with other improved algorithms, the effect of this algorithm is also better than other algorithms. © 2021 IEEE.

关键词： Generative adversarial networks

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Hough Circle Detection Method for Shaking Instruments in Drilling Field 4

Hough Circle Detection Method for Shaking Instruments in Dri...

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4th International Conference on Computer Network, Electronic and Automation, ICCNEA 2021

作者： Ma, Bo Liu, Hailong Zhang, Qizhi School Of Electronic Engineering Xi'an Shiyou University Xi’an China Shaanxi Provincial Key Lab Of Oil And Gas Well Measurement And Control Technology Xi’an China

ISBN: (纸本)9781665444866

At present, the real-time performance of data acquisition has become the key to the development of intelligent drilling. Due to the limitation of stay wire and power supply, the stability of data transmission is not high. In view of the data cannot be collected effectively, machine vision is introduced into the drilling field to automatically judge and read the instruments, there are often fuzzy images of vibration instability in the acquired instrument images. By analyzing the reasons and rules of instrument jitter, a new scheme is proposed. The dithering image is blurred by Wiener filter, and the template matching is made for the initial frame picture. The disc and the center of the circle are obtained from the matched stable image by improved Hough transform, and then they are drawn on the deblurring image. The experiment shows that the error of the circle obtained in this scheme is more stable than the traditional algorithm. © 2021 IEEE.

关键词： Hough transforms

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Industrial Semantic communications for Tool Wear Monitoring in Industrial IoT Networks

Industrial Semantic Communications for Tool Wear Monitoring ...

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IEEE International Conference on communications in China Workshops (ICCC)

作者： Mingqiang Zhang Yajuan Yang Baokun Song Zexin Chen Xiaocong Ma Dongyang Li Na Li Feng Cao Yanping Zhang Haixia Zhang School of Cyber Science and Engineering Qufu Normal University Qufu China College of Oceanography and Space Informatics China University of Petroleum (East China) Huangdao China School of Intelligent Manufacturing and Control Engineering Qilu Institute of Technology Jinan China School of Computer and Information Engineering Qilu Institute of Technology Jinan China School of Control Science and Engineering Shandong University Jinan China Shandong Key Laboratory of Intelligent Communication and Sensing-Computing Integration Shandong University Jinan China

ISBN: (数字)9798350377675

ISBN: (纸本)9798350377682

In this paper, we propose an Industrial Semantic communications (ISC) framework to ensure efficient and in-telligent communication in Industrial Internet-of-Things (IIoT) networks, and further apply the proposed framework to the task of tool wear monitoring. A semantic-aware tool wear monitoring network (TWM-Net) is designed to accurately identify the idling state from tool wear data, thus assisting the semantic data transmission process of the ISC framework. Then, a demo software system is implemented to verify the delay performance of the proposed ISC framework. Experimental results demonstrated that the proposed ISC framework can facilitate the semantic information exchange between edge industrial system and cloud platform together with the deep compressed sensing method, and significantly reduce the amount of data transmissions in IIoT networks. The source code and dataset is available through https://***/pnixsoft/TWM-Net.

关键词： Vibrations Source coding Software systems Multitasking Delays Data communication Monitoring Information exchange Industrial Internet of Things Testing

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Research of Boost Converter Sliding Mode control Method Based on Exponential Reaching Law 4

Research of Boost Converter Sliding Mode Control Method Base...

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4th International Conference on Computer Network, Electronic and Automation, ICCNEA 2021

作者： Dang, Chunyong Zhang, Qizhi Xi'an Shiyou University School Of Electronic Engineering Xi’an China Shaanxi Provincial Key Lab Of Oil And Gas Well Measurement And Control Technology Xi’an China

ISBN: (纸本)9781665444866

Due to the nonlinear structure of boost converter, the traditional PI controller can ensure the boost converter to work stably near the rated point, and achieve good dynamic and steady-state performance. When the working state of boost converter deviates greatly from the rated point, its stability cannot be guaranteed. Therefore, in order to solve the problem that the dynamic performance and stability of boost converter are insufficient when it deviates from the rated working state, the mathematical model of third-order sliding mode controller is established by adding voltage dynamic error state variable on the basis of second-order sliding mode boost converter. The exponential reaching law is applied to the third-order sliding mode controller, which can effectively reduce the overshoot in the start-up phase;when the input voltage changes suddenly, the load has strong robustness. The paper built the Simulink module, and through the Matlab/Simulink, the effectiveness of the algorithm is verified. © 2021 IEEE.

关键词： Sliding mode control

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IR Net: information restriction and information recovery for accurate binary neural networks

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Neural Computing and Applications 2023年第19期35卷 14449-14464页

作者： Xue, Ping Lu, Yang Chang, Jingfei Wei, Xing Wei, Zhen School of Computer Science and Information Engineering Hefei University of Technology Hefei China Anhui Mine IOT and Security Monitoring Technology Key Laboratory Hefei China Engineering Research Center of Safety Critical Industrial Measurement and Control Technology Ministry of Education Hefei University of Technology Hefei China Intelligent Manufacturing Institute of Hefei University of Technology Hefei China

Weight and activation binarization can efficiently compress deep neural networks and accelerate model inference, but they cause severe accuracy degradation. Existing optimization methods for binary neural networks (BNNs) focus on fitting full-precision networks to reduce quantization errors and suffer from a tradeoff between accuracy and efficiency. In contrast, considering information loss and the mismatch between model capacity and input information quantity caused by network binarization, we propose Information Restriction and Information Recovery Network (IR $$^2$$ Net) to stimulate the potential of BNNs and achieve improved network accuracy by restricting the input information and recovering feature information. The proposed approach includes (1) information restriction, which evaluates the feature information extracted from the input by a BNN, discards some of the information it cannot focus on, and reduces the amount of the input information to match the model capacity; and (2) information recovery: due to the information loss incurred during forward propagation, the extracted feature information of the network is not sufficient for supporting accurate classification. Shallow feature maps with richer information are selected, and these feature maps are fused with the final feature maps to recover the extracted feature information and further enhance the model capacity to match the amount of input information. In addition, the computational cost is reduced by streamlining the information recovery method to strike a better tradeoff between accuracy and efficiency. Experimental results demonstrate that our approach still achieves comparable accuracy even with a $$\sim$$ 10x floating-point operations (FLOPs) reduction for ResNet-18. The models and code are available at https://***/pingxue-hfut/IR2Net .

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Joint Computation Offloading and Resource Allocation for LEO Satellite Networks Using Hierarchical Multi-Agent Reinforcement Learning

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IEEE Transactions on Cognitive communications and Networking 2024年

作者： Lai, Junyu Liu, Huashuo Xu, Guoyao Jiang, Weiwei Wang, Xiong Jiang, Dingde University of Electronic Science and Technology of China School of Aeronautics and Astronautics China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Laboratory of Sichuan Province Chengdu611731 China University of Electronic Science and Technology of China School of Aeronautics and Astronautics Chengdu611731 China Ministry of Education Key Laboratory of Universal Wireless Communications China Beijing University of Posts and Telecommunications School of Information and Communication Engineering Beijing100876 China University of Electronic Science and Technology of China School of Information and Communication Engineering Chengdu611731 China

The integration of edge computing with LEO satellite broadband networks (LSBNs) offers a transformative potential, yet remains underexplored in the optimization of joint computation offloading and resource allocation (JCORA). This problem is compounded by the issues of load imbalance and hybrid action spaces. To tackle them, we firstly propose a multi-level edge computing architecture that leverages the inter-satellite links to enable collaborative offloading among neighboring satellites, thereby enhancing global resource utilization and load balance in LSBNs. Moreover, existing studies demonstrate the benefits of deep reinforcement learning (DRL) for JCORA optimization but struggle with the complexities of hybrid action spaces. To address this, we elaborate a novel hierarchical multi-agent DRL (HMADRL) framework that decomposes the JCORA problem into two-layered subproblems, namely global computation offloading and local resource allocation. This decomposition effectively mitigates the challenge posed by hybrid action spaces. The computation offloading subproblem is formulated as a delayed-reward partially observable Markov decision process, optimized by using multi-agent deep Q-networks specialized in discrete action outputs. Meanwhile, the resource allocation subproblem is addressed through the deep deterministic policy gradient model, adept at handling continuous actions. Extensive experiments validate our approach, demonstrating improvements in delay reduction, outrage rate, and load balancing compared to baselines. © 2015 IEEE.

关键词： Markov processes

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Parameters Estimation of Cole-Cole Bio-Impedance Model with a Minimum Number of Frequencies

Parameters Estimation of Cole-Cole Bio-Impedance Model with ...

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IEEE Instrumentation and measurement technology Conference

作者： Nour Ammar Cherif Ouni Ahmed Yahia Kallel Ahmed Fakhfakh Nabil Derbel Olfa Kanoun Measurement and Sensor Technology Faculty of Electrical Engineering and Information Technology Chemnitz University of Technology Chemnitz Germany Control and Energy Management Laboratory National Engineering School of Sfax University of Sfax Sfax Tunisia Laboratory of Signals Systems Artificial Intelligence and Networks Digital Research Centre of Sfax National School of Electronics and Telecommunications of Sfax Sfax Tunisia

ISBN: (数字)9798350380903

ISBN: (纸本)9798350380910

Wearable bioimpedance devices are becoming increasingly popular due to their portability and non-invasiveness. However, these devices consume a lot of energy during measurement time, limiting the operating time. The number of frequencies must be reduced to reduce the measurement time and energy. In this paper, we propose using three frequencies and investigating their optimal values for accurate measurement. The remaining two frequencies at high frequencies are chosen by eliminating the high frequencies that have a high deviation. Lastly, a third frequency is optimally chosen based on a combination of the frequencies whose non-linear least-squares fitting parameters results lead to the smallest deviations. First, a simulation is used to validate the results, where a Cole-Cole model is used with different noise levels. Two high frequencies in combination with a frequency close to the characteristic frequency yielded the best results, regardless of the presence of noise. Second, the measurement was experimentally validated in STM32 with a physical Cole-Cole model, which confirmed the results, where 7.94 kHz, close to the characteristic frequency, had mean deviations of 2.43% in $R_{l}$ , 3.7% in $R_{E}$ , and 2.55% in C. Using three points reduces the measurement time from 9.7 ms to 0.41 ms.

关键词： Time-frequency analysis Accuracy Biological system modeling Fitting Energy measurement Time measurement Frequency estimation

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End-to-End Three-Dimensional Reconstruction of Transparent Objects with Multiple Optimization Strategies Under Limited Constraints

SSRN

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SSRN 2023年

作者： Sha, Xiaopeng Si, Xiaopeng Li, Wenchao Zhu, Yujie Wang, Shuyu Zhao, Yuliang School of Control Engineering Northeastern University at Qinhuangdao Qinhuangdao066004 China Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology Qinhuangdao066004 China

Reconstructing transparent objects with limited constraints has long been considered a highly challenging problem. Due to the complex interaction between transparent objects and light, which involves intricate refraction and reflection relationships, traditional three-dimensional (3D) reconstruction methods are less than effective for transparent objects. To address this issue, this study proposes a 3D reconstruction method specifically designed for transparent objects. Incorporating multiple optimization strategies, the method works under limited constraints to achieve the end-to-end reconstruction of transparent objects with only a few transparent object images in any known environment, without the need for specific data collection devices or environments. The proposed method makes use of automatic image segmentation and modifies the network interface and structure of the PointNeXt algorithm to introduce the TransNeXt network, which enhances normal features, optimizes weight attenuation, and employs a preheating cosine annealing learning rate. We use several steps to reconstruct the complete 3D shape of transparent objects. First, we initialize the transparent shape with a visual hull reconstructed with the contours obtained by the TOM-Net. Then, we construct the normal reconstruction network to estimate the normal values. Finally, we reconstruct the complete 3D shape using the TransNeXt network. Multiple experiments show that the TransNeXt network exhibits superior reconstruction performance to other networks and can effectively perform the end-to-end reconstruction of transparent objects even under limited constraints. © 2023, The Authors. All rights reserved.

关键词： Image segmentation

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Sparsity-enhanced Convolutional Neural Network for IoT Cyberattacks Detection 17

Sparsity-enhanced Convolutional Neural Network for IoT Cyber...

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17th International Conference on Computational Intelligence and Security, CIS 2021

作者： Kang, Yingyun Feng, Yongxin Chen, Yongqun Wang, Wei School of Information Science and Engineering Shenyang Ligong University Shenyang China Science and Technology on Communication Information Security Control Laboratory Jiaxing China

ISBN: (纸本)9781665494892

The Internet of Things (IoT) is a collection of interconnected devices that can be linked without the need for human interaction. IoT will have a significant impact on our lives in terms of economics, commerce, and society. IoT network nodes are typically resource-constrained, which makes them attractive targets for cyberattacks. However, due to the unique properties of IoT nodes, current solutions are insufficient to cover the complete security spectrum of IoT networks. A more intelligent IoT network security solution is required. Artificial intelligence is one of the most suited computing paradigms for providing embedded intelligence in IoT and is being used to address various security issues. To detect IoT cyber threats, we introduce a sparsity-enhanced convolutional neural network in this paper. Recently published IoT datasets are used for experiments. The proposed neural network is effective by experimental results and analysis. © 2021 IEEE.

关键词： Internet of things

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Experimental demonstration of 8190-km long-haul semiconductor-laser chaos synchronization induced by digital optical communication signal

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光：科学与应用（英文版） 2025年第2期14卷 333-343页

作者： Anbang Wang Junli Wang Lin Jiang Longsheng Wang Yuncai Wang Lianshan Yan Yuwen Qin Key Laboratory of Photonic Technology for Integrated Sensing and Communication Ministry of Education of ChinaGuangdong University of TechnologyGuangzhou 510006China Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi ProvinceTaiyuan 030024China Institute of Advanced Photonics Technology School of Information EngineeringGuangdong University of TechnologyGuangzhou 510006China Guangdong Provincial Key Laboratory of Information Photonics Technology Guangdong University of TechnologyGuangzhou 510006China Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi ProvinceTaiyuan 030024China College of Physics and Optoelectronics Taiyuan University of TechnologyTaiyuan 030024China Center for Information Photonics and Communications Southwest Jiaotong UniversityChengdu 610031China Key Laboratory of Photonic Technology for Integrated Sensing and Communication Ministry of Education of ChinaGuangdong University of TechnologyGuangzhou 510006China Institute of Advanced Photonics Technology School of Information EngineeringGuangdong University of TechnologyGuangzhou 510006China Guangdong Provincial Key Laboratory of Information Photonics Technology Guangdong University of TechnologyGuangzhou 510006China

Common-signal-induced synchronization of semiconductor lasers have promising applications in physical-layer secure transmission with high speed and compatibility with the current fiber ***,we propose an ultra-long-distance laser synchronization scheme by utilizing random digital optical communication signal as the common drive *** utilizing the long-haul optical coherent communication techniques,high-fidelity fiber transmission of the digital drive can be achieved and thus ultra-long-distance synchronization is *** were implemented with distributed feedback lasers injected by a random-digital phase-modulated drive *** show that high-quality synchronization can be achieved as the drive signal rate is larger than the laser relaxation frequency and the transmission bit error ratio is below a critical *** synchronization over 8191-km fiber transmission was experimentally *** to traditional common-signal-induced synchronization using analog drive signal such as chaos,the distance is increased by 8 times,and complicated hardware devices for channel impairment compensation are no longer *** addition,the proposed method does not sacrifice communication capacity like traditional methods which need a channel to transmit analog drive *** is therefore believed that this common-digital-signal induced laser synchronization paves a way for secure backbone and submarine transmission.

关键词： communication semiconductor synchronization signal digital chaos laser demonstration experimental induced

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