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4th International Computational Imaging Conference, CITA 2024

作者： Ma, Mingxuan Bi, Meihua Zhang, Lu Hu, Miao School of Communication Engineering Hangzhou Dianzi University Xiasha Gaojiaoyuan 2nd Street Zhe Jiang province Hangzhou310018 China State Key Laboratory of Advanced Optical Communication System and Networks Department of Electronic Engineering Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai200240 China College of Information Science and Electronic Engineering Zhejiang University Zhe Jiang province Hangzhou310018 China

ISBN: (纸本)9781510688834

A novel communication-centric integrated sensing and communication waveform design method is proposed. The sensing mutual information is introduced as a metric to evaluate system sensing performance. By combining the established mathematical system model, the crosstalk between communication and sensing is theoretically minimized, while the mutual information carried by the sensing signal regarding the sensing target is theoretically maximized. The sensing signal spectrum distribution is designed based on the optimization results, ultimately forming the water-filling-based integrated waveform design method. This approach maximizes overall system performance, enabling a high-performance integrated sensing and communication system. Using the proposed waveform design method, the frequency-division ISAC-OF system simultaneously achieves 25-Gbit/s data transmission and meter-level localization of fiber fault points over a 20-km single-mode fiber link. Simulation experiments verify that the proposed integrated waveform design method achieves the combination of high-speed optical fiber communication with high-precision optical fiber sensing. © 2025 SPIE.

关键词： Single mode fibers

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Deep Joint Source-Channel Coding for Person Re-Identification With Related Image Sources 23

Deep Joint Source-Channel Coding for Person Re-Identificatio...

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23rd IEEE International Conference on Communication Technology, ICCT 2023

作者： Chu, Zhihang Chen, Wei Wang, Ning Ai, Bo State Key Laboratory of Advanced Rail Autonomous Operation Beijing Jiaotong University China School of Electronic and Information Engineering Beijing Jiaotong University Beijing China Frontiers Science Center for Smart High-speed Railway System China Key Laboratory of Railway Industry of Broadband Mobile Information Communications China School of Information Engineering Zhengzhou University Zhengzhou China

ISBN: (纸本)9798350325959

In this paper, we propose a deep learning based joint source-channel coding (JSCC) scheme for wireless transmission of multiple related image sources in person re-identification tasks. Our network utilizes parameter sharing for the encoder at the transmitter and adopts a joint decoding architecture for the decoder at the receiver, reducing storage space and computational resource consumption. By leveraging object-related information from multiple perspectives, the decoder fuses richer features to perform corresponding re-identification tasks. Experimental results demonstrate that the performance of our proposed method degrades gracefully as available bandwidth resources decrease, and the proposed multi-transmitter JSCC scheme achieves significant gains under low bandwidth and low signal-to-noise ratio conditions, compared with the existing approach. This work shows the potential of the JSCC-based approach for efficient and robust wireless transmission of related image sources in person re-identification scenarios. © 2023 IEEE.

关键词： deep joint source and channel coding image retrieval person re-identification

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A Road Damage Segmentation Method for Complex Environment Based on Improved UNet 12th

A Road Damage Segmentation Method for Complex Environment Ba...

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12th International Conference on Image and Graphics, ICIG 2023

作者： Liu, Pengyu Yuan, Jing Chen, Shanji Faculty of Information Technology Beijing Institute of Technology Beijing100124 China Beijing Laboratory of Advanced Information Networks Beijing100124 China Beijing Key Laboratory of Computational Intelligence and Intelligent System Beijing University of Technology Beijing100124 China School of Physics and Electronic Information Engineering Qinghai Minzu University Xining810007 China

ISBN: (纸本)9783031463044

Detecting and repairing road damage timely is crucial for ensuring traffic safety and reducing hazards. Cracks and potholes are the primary indications of early-stage road damage. However, existing deep learning-based methods for road damage detection often have limited feature extraction capabilities and only perform well in specific detection environments. To address these challenges, this paper proposes an improved UNet-based road damage segmentation method for complex environments. This method incorporates Atrous Spatial Pyramid Pooling (ASPP) and Coordinate Attention (CA) into the network, enhancing its ability to capture features of various sizes and to localize feature information. The proposed model effectively detects both cracks and potholes under different road environments, such as concrete, asphalt, and gravel. Experimental results demonstrate that the proposed network achieves 78.8% and 88.57% segmentation Intersection over Union (IoU) for cracks and potholes, respectively, outperforming classical semantic segmentation networks such as UNet, PSPNet, Attention UNet, UNet++, DANet, SegFormer, and TransUNet. This model can be applied to intelligent road inspection and maintenance to improve inspection efficiency. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

关键词： Semantics

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HALS-770 interlayer simultaneously block internal and external degradation paths of perovskite for stability and high efficiency perovskite solar cells

HALS-770 interlayer simultaneously block internal and extern...

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第十一届新型太阳能材料科学与技术学术研讨会

作者： Lina Hu Chenxi Zhang Yukun Wu Shiqi Li Fan Zhang Jingkun Ren Yang Hao Qinjun Sun Yulin Wang Yuying Hao College of Electronic Information and Optical Engineering Key Lab of Advanced Transducers and Intelligent Control SystemTaiyuan University of Technology School of Physics and Optoelectronic Engineering Faculty of Information Science and EngineeringOcean University of China

The stability of perovskite solar cells （PSCs） is a major problem limiting their ***,we proposed a feasible solution using bis（2,2,6,6-tetramethyl-4-piperidyl） sebacate（HALS-770） as top protection layer of ***-770 interlayer can not only improve the antioxidant ability of perovskite by removing superoxide (O) with help of hindered amine groups,but also suppress the internal and external degradation path of perovskite due to the co-existence of hydrophilic and hydrophobic ***,it can block volatilization of organic cation and the migration of Agand I,thus improve thermal stability of perovskite and alleviate destruction of Ag *** addition,the heterocycles N atom and carbonyl group in HALS-770 interact with the under-coordinated Pb,reducing the interface *** a result,the unencapsulated device maintains excellent stability over95%of its initial efficiency after 30 days in ambient condition with about 25–50%humidity,and possesses remarkable continuous operation stability with projected T80>1400 h at maximum power point tracking in glove box,much higher than those of the pristine ***,HALS-770 enable the PCE of 21.88%for PSC （0.06 cm）,which is among the highest efficiencies for MAPbI based PSCs with p-i-n structure,and the PCE of 19.07%for PSM （4 cm）.And it is also suitable for FAMA-based devices with n-i-p structure,enabling an efficiency of 23.03%（0.06 cm） and excellent stability.

关键词： Perovskite solar cell External degradation Internal degradation Stability

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Scalable parallel ultrafast optical random bit generation based on a single chaotic microcomb

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Light(Science & Applications) 2024年第4期13卷 637-644页

作者： Pu Li Qizhi Li Wenye Tang Weiqiang Wang Wenfu Zhang Brent ELittle Sai Tek Chu KAlan Shore Yuwen Qin Yuncai Wang Institute of Advanced Photonics Technology School of Information EngineeringGuangdong University of TechnologyGuangzhou 51006China. Key Laboratory of Photonic Technology for Integrated Sensing and Communication Ministry of Education of ChinaGuangdong University of TechnologyGuangzhou 51006China. Guangdong Provincial Key Laboratory of Information Photonics Technology Guangdong University of TechnologyGuangzhou 51006China. Key Laboratory of Advanced Transducers andIntelligent Control System Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China. State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China. Department of Physics and Materials Science City University of Hong KongHong KongChina. School of Electronic Engineering Bangor UniversityBangorWales LL571UTUK

Random bit generators are critical for information security,cryptography,stochastic modeling,and *** and scalability are key challenges faced by current physical random bit ***,we propose a massively parallel scheme for ultrafast random bit generation towards rates of order 100 terabit per second based on a single micro-ring resonator.A modulation-instability-driven chaotic comb in a micro-ring resonator enables the simultaneous generation of hundreds of independent and unbiased random bit streams.A proof-of-concept experiment demonstrates that using our method,random bit streams beyond 2 terabit per second can be successfully generated with only 7 comb *** bit rate can be easily enhanced by further increasing the number of comb lines *** approach provides a chip-scale solution to random bit generation for secure communication and high-performance computation,and offers superhigh speed and large scalability.

关键词： resonator random chaotic

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Measurement of Absorption Current of Polyester Coated Enameled Wires with Q(t) meter

Measurement of Absorption Current of Polyester Coated Enamel...

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2023 International Symposium on Electrical Insulating Materials, ISEIM 2023

作者： Watanabe, Akinao Fukuma, Masumi Sekiguchi, Yoitsu Advanced Electronic and Information Systems Course National Institute of Technology Matsue College Matsue Japan Department of Electrical Engineering and Computer Science National Institute of Technology Matsue College Matsue Japan Energy and Electronics Materials R&D Laboratories Sumitomo Electric Industries Osaka Japan

ISBN: (纸本)9784886864376

A Q(t) meter is used to measure electrical properties in insulating materials. Here, Q(t) is the integral value of circuit current with time t. It is possible to measure the Q(t) of the insulation material of a capacitor and a cable by using Q(t) meter. The current through an insulating material is divided into an instantaneous charging current, an absorption current and an equilibrium leakage current. It is considered that the absorption current is related to charge accumulation in the insulating materials. In this paper, an enameled wire (1.6 PEW) is used to prepare a cable sample, the Q(t) of the coated polyester (PEs) is measured, and extraction of absorption current components from measured Q(t) are reported. © 2023 The Institute of Electrical Engineers of Japan.

关键词： Insulating materials

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Simultaneously realizing thermal and electromagnetic cloaking by multi-physical null medium

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Opto-electronic Science 2024年第2期3卷 45-59页

作者： Yichao Liu Xiaomin Ma Kun Chao Fei Sun Zihao Chen Jinyuan Shan Hanchuan Chen Gang Zhao Shaojie Chen Key Lab of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi ProvinceCollege of Electronic Information and Optical EngineeringTaiyuan University of TechnologyTaiyuan 030024China

Simultaneously manipulating multiple physical fields plays an important role in the increasingly complex integrated systems,aerospace equipment,biochemical productions,*** on-chip systems with high integration level,the precise and efficient control of the propagation of electromagnetic waves and heat fluxes simultaneously is particularly *** this study,we propose a graphical designing method(i.e.,thermal-electromagnetic surface transformation)based on thermal-electromagnetic null medium to simultaneously control the propagation of electromagnetic waves and thermal fields according to the pre-designed paths.A thermal-electromagnetic cloak,which can create a cloaking effect on both electromagnetic waves and thermal fields simultaneously,is designed by thermal-electromagnetic surface transformation and verified by both numerical simulations and experimental *** thermal-electromagnetic surface transformation proposed in this study provides a new methodology for simultaneous controlling on electromagnetic and temperature fields,and may have significant applications in improving thermal-electromagnetic compatibility problem,protecting of thermal-electromagnetic sensitive components,and improving efficiency of energy usage for complex onchip systems.

关键词： transformation optics multi-physical cloak null medium

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Human action recognition using a time-delayed photonic reservoir computing

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Science China(information Sciences) 2023年第11期66卷 309-310页

作者： Chao KAI Pu LI Yi YANG Bingjie WANG K.Alan SHORE Yuncai WANG Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education Taiyuan University of Technology Guangdong Provincial Key Laboratory of Photonics Information Technology School of Information Engineering School of Computer Science and Electronic Engineering Bangor University

Human action recognition(HAR) has important applications, including video retrieval, entertainment, autonomous navigation systems, and visual surveillance systems [1]. Unfortunately, accurate and efficient HAR remains a challenging task in the field of computer vision because its modeling and characteristic representation belong to threedimensional space-time instead of common two-dimensional space [2].

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Femtosecond laser-induced nanoparticle implantation into flexible substrate for sensitive and reusable microfluidics SERS detection

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International Journal of Extreme Manufacturing 2024年第4期6卷 262-274页

作者： Yongxiang Hu Yu Zhou Guohu Luo Dege Li Minni Qu State Key Laboratory of Mechanical System and Vibration School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240People's Republic of China School of Mechanical and Power Engineering Nanjing Tech UniversityNanjing 211816People's Republic of China Center for Advanced Electronic Materials and Devices School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240People's Republic of China

Surface-enhanced Raman spectroscopy(SERS)microfluidic system,which enables rapid detection of chemical and biological analytes,offers an effective platform to monitor various food contaminants and disease *** efficacy of SERS microfluidic systems is greatly dependent on the sensitivity and reusability of SERS detection substrates to ensure repeated use for prolonged *** study proposed a novel process of femtosecond laser nanoparticle array(NPA)implantation to achieve homogeneous forward transfer of gold NPA on a flexible polymer film and accurately integrated it within microfluidic chips for SERS *** implanted Au-NPA strips show a remarkable electromagnetic field enhancement with the factor of 9×108 during SERS detection of malachite green(MG)solution,achieving a detection limit lower than 10 ppt,far better than most laser-prepared SERS ***,Au-NPA strips show excellent reusability after several physical and chemical cleaning,because of the robust embedment of laser-implanted NPA in flexible *** demonstrate the performance of Au-NPA,a SERS microfluidic system is built to monitor the online oxidation reaction between MG/NaClO reactants,which helps infer the reaction *** proposed method of nanoparticle implantation is more effective than the direct laser structuring *** provides better performance for SERS detection,robustness of detection,and substrate flexibility and has a wider range of applications for microfluidic systems without any negative impact.

关键词： femtosecond laser-induced transfer nanoparticle array surface-enhanced Raman spectrum microfluidic system

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Automatic Prompt Generation Based on Combinatorial Relationships in Reasoning Problems

Automatic Prompt Generation Based on Combinatorial Relations...

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Natural Language Processing (ICNLP), International Conference on

作者： Tong Wu Hao He School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai China State Key Lab of Advanced Optical Communication System and Network School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai China

ISBN: (数字)9798350349115

ISBN: (纸本)9798350349122

The effectiveness of Large Language Models (LLMs) in tasks involving reasoning is significantly influenced by the structure and formulation of the prompts, contemporary research in prompt engineering aims to help LLMs better understand the paradigms of reasoning question (e.g., CoT). However, these efforts have either struggled to effectively incorporate external knowledge into single prompt or integrating entire corpus information, often fails to significantly enhance the reasoning capabilities of LLMs. This paper introduces a novel prompting method that incorporates implicit hints that represent logical combinatorial relationships between known conditions in reasoning problems, guiding LLMs to think correctly in the initial steps of reasoning for such problems. Extensive and comprehensive experiment results on four different reasoning problem datasets indicate that our proposed method improved accuracy while maintaining efficiency.

关键词： Accuracy Large language models Predictive models Cognition Natural language processing Prompt engineering

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