Xun Wu

ORCID: 0009-0004-8001-0205
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Research Areas
  • Image Enhancement Techniques
  • Image and Signal Denoising Methods
  • Advanced Image Processing Techniques
  • Advanced Image Fusion Techniques
  • Advanced Computational Techniques and Applications
  • Millimeter-Wave Propagation and Modeling
  • Rocket and propulsion systems research
  • Advanced Sensor and Control Systems
  • Advanced Algorithms and Applications
  • Advanced Vision and Imaging
  • Photosynthetic Processes and Mechanisms
  • Direction-of-Arrival Estimation Techniques
  • Advanced Fiber Optic Sensors
  • Advanced Decision-Making Techniques
  • Engineering and Test Systems
  • Multimodal Machine Learning Applications
  • Quantum Computing Algorithms and Architecture
  • Biocrusts and Microbial Ecology
  • Antenna Design and Optimization
  • Advanced Image and Video Retrieval Techniques
  • Algal biology and biofuel production
  • Advanced Measurement and Detection Methods
  • Photonic and Optical Devices
  • VLSI and Analog Circuit Testing
  • Geoscience and Mining Technology

Hubei Normal University
2024-2025

Tsinghua University
2022-2024

Stomatology Hospital
2024

Southern Medical University Shenzhen Hospital
2024

Shihezi University
2024

Nanjing University of Science and Technology
2022-2024

Wuhan University of Technology
2019-2024

Southern University of Science and Technology
2022-2023

Shenzhen University
2022-2023

Donghua University
2023

In this letter, we study efficient near-field beam training design for the extremely large-scale array (XL-array) communication systems. Compared with conventional far-field method that searches best direction only, is more challenging since it requires a search over both angular and distance domains due to spherical wavefront propagation model. To reduce beam-training overhead based on two-dimensional exhaustive search, propose in letter new two-phase decomposes into two sequential phases....

10.1109/lwc.2022.3212344 article EN IEEE Wireless Communications Letters 2022-10-06

A compact surface plasmon resonance sensor based on an H-shaped optical fiber is proposed and demonstrated. The was fabricated experimentally by using hydrofluoric acid to controllably corrode the polarization-maintaining fiber. satisfactory distance between outer of core can be achieved, then effect excited coating a metal film appropriate thickness This technology realize preparation multiple samples at one time, compared traditional side-polishing technique. obtained from corrosion...

10.3390/bios12030141 article EN cc-by Biosensors 2022-02-25

Video moment retrieval aims at localizing a specific from an untrimmed video by sentence query. Most methods rely on heavy annotations of moment-query pairs. Recent zero-shot reduced annotation cost, yet they neglected the global visual feature due to separation and text learning process. To avoid lack features, we propose Prompt-based Zero-shot Moment Retrieval (PZVMR) method. Motivated frame prompt learning, design two modules: 1) Proposal Prompt (PP): We randomly masks sequential frames...

10.1145/3503161.3548004 article EN Proceedings of the 30th ACM International Conference on Multimedia 2022-10-10

Broadband beamforming technology is an effective solution in millimeter-wave (mmWave) massive multiple-input-multiple-output (MIMO) systems to counteract severe path loss via gains. One classic approach implementing adaptive broadband through spatio-temporal structure. In this paper, a method based on the complex convolutional neural network (CCNN) proposed, namely, prediction complex-valued (BBPCNet), which can solve performance degradation problem of traditional methods under circumstance...

10.1109/tvt.2024.3366971 article EN IEEE Transactions on Vehicular Technology 2024-07-01

ABSTRACT Ultraviolet (UV) A radiation (315–400 nm) is the predominant component of solar UV that reaches Earth’s surface. However, underlying mechanisms positive effects UV-A on photosynthetic organisms have not yet been elucidated. In this study, we investigated growth, ability, and metabolome edible cyanobacterium Nostoc sphaeroides . Exposures to 5–15 W m −2 (15–46 µmol photons s −1 ) 4.35 (20 μmol visible light for 16 days significantly increased growth rate biomass production N. cells...

10.1128/aem.02110-23 article EN Applied and Environmental Microbiology 2024-02-23

In an effort to improve the soil covering effect of tree planting machines and reduce lodging rate seedlings, this paper analyzes process working principle device designs a with adjustable width. With help discrete element simulation software EDEM, orthogonal test was designed width inclination angle as factors backfill response index. The regression analysis results carried out by Design-expert, optimal parameter combination determined follows: soil: 600 mm, forward angle: 45°, depth 20 mm....

10.3390/agriculture14030346 article EN cc-by Agriculture 2024-02-22

The power of photovoltaic (PV) is related to many factors, and prediction vital significance maintain the stable operation system. A model PV based on EEMD-IWOA-LSTM proposed herein. EEMD decomposition used decompose historical generation, various factors such as wind speed IMF component obtained by plate temperature are dimensions train LSTM network. Meanwhile, parameters optimized an improved whale optimization algorithm. We pick best model. comparison results show that accuracy generation...

10.1109/eebda60612.2024.10485724 article EN 2024-02-27

Adaptive Laguerre processing is an attractive spatio-temporal method of designing broadband beamformers. In this letter, a novel approach directly obtaining the low-dimensional frequency-constrained matrix adaptive beamforming, namely, non-uniform decomposition beamformer (NUDM-FCLB), proposed. The NUDM-FCLB utilizes to rapidly construct without adding any computational complexity. More importantly, proposed constrained guarantees beamformer's distortion-less response signals interest....

10.1109/lwc.2022.3169089 article EN IEEE Wireless Communications Letters 2022-04-21

Compared with the rich studies on motor brain-computer interface (BCI), recently emerging affective BCI presents distinct challenges since brain functional connectivity networks involving emotion are not well investigated. Previous recognition based electroencephalography (EEG) signals mainly rely single-channel-based feature extraction methods. In this paper, we propose a novel emotion-relevant critical subnetwork selection algorithm and investigate three EEG network features: strength,...

10.48550/arxiv.2004.01973 preprint EN other-oa arXiv (Cornell University) 2020-01-01

RGBW, a newly emerged type of Color Filter Array (CFA), possesses strong low-light photography capabilities. RGBW CFA shows significant application value when sensitivity is critical, such as in security cameras and smartphones. However, the majority commercial image signal processors (ISP) are primarily designed for Bayer CFA, research pertaining to very rare. To address above limitations, this study, we propose two-phase framework named OTST Joint Denoising Remosaicing (RGBW-JRD) task. For...

10.1109/cvprw59228.2023.00284 article EN 2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) 2023-06-01

This paper based on gender difference emotions perception, reasoning in the perception of clustering from existing differentiation driving anger, further environment factors road-rage are divided into two sorts include cognitive construct and sensibility by means discriminant analysis, then discussing influence these kinds male female respectively. And set up questionnaire interview to get data verify hypothesis. Finally come conclusion that such as traffic congestion, wrong road sign can...

10.1109/iscid.2015.136 article EN 2015-12-01

Developing and integrating advanced image sensors with novel algorithms in camera systems are prevalent the increasing demand for computational photography imaging on mobile platforms. However, lack of high-quality data research rare opportunity an in-depth exchange views from industry academia constrain development intelligent (MIPI). With success 1st MIPI Workshop@ECCV 2022, we introduce second challenge, including four tracks focusing algorithms. This paper summarizes reviews RGBW Joint...

10.1109/cvprw59228.2023.00289 article EN 2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) 2023-06-01

We propose a Mach-Zehnder interferometer based on an in-fiber ZnO microwire structure for ultraviolet sensing. The device undergoes femtosecond laser micromachining and chemical etching single-mode optical fiber initially, creating microgroove that extends to half of the core's depth, into which single is transferred. remaining core are used as sensing arm reference arm, respectively, forming interferometer. To enhance stability sensitivity, nanoparticles filled after fabricated exhibits...

10.1364/ol.506796 article EN Optics Letters 2023-11-09

10.1007/s12613-010-0355-z article EN International Journal of Minerals Metallurgy and Materials 2010-10-01

Recent demosaicing approaches are not effective and efficient enough as they do make full use of these two factors: (1) Capturing long-range spatial dependencies effiently. (2) Reducing the computational costs when utilizing channel attention. To take them into consideration, we propose an Efficient Compressed Multibranch Transformer (ECMT) to handle problem on various color filter arrays (CFA). There key specifically designed components: First, a Local-Global Spatial-wise Multi-head...

10.1109/icassp48485.2024.10447776 article EN ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2024-03-18
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