Lei Zhang

ORCID: 0000-0003-0727-3135
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About
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Research Areas
  • Video Surveillance and Tracking Methods
  • Image Processing Techniques and Applications
  • Advanced Image Processing Techniques
  • Human Pose and Action Recognition
  • Video Analysis and Summarization
  • Gait Recognition and Analysis
  • Image and Signal Denoising Methods
  • Computer Graphics and Visualization Techniques
  • Infrared Target Detection Methodologies
  • Robotics and Sensor-Based Localization
  • Fuzzy Logic and Control Systems
  • Image Enhancement Techniques
  • Medical Imaging Techniques and Applications
  • Advanced X-ray Imaging Techniques
  • Advanced Optical Sensing Technologies
  • Advanced Vision and Imaging
  • Advanced X-ray and CT Imaging
  • Advanced Neural Network Applications
  • Medical Image Segmentation Techniques
  • Automotive and Human Injury Biomechanics
  • Cellular and Composite Structures
  • Image and Video Quality Assessment
  • Advanced Image Fusion Techniques
  • Generative Adversarial Networks and Image Synthesis
  • Software Engineering Techniques and Practices

Yangzhou University
2024

China Medical University
2024

Beihang University
2004-2023

Jilin Agricultural University
2023

Jilin University
2023

Shandong University of Science and Technology
2021

Nanyang Technological University
2016

Nanjing University
2007-2016

Sun Yat-sen University
2013

UtopiaCompression (United States)
2011

As the Internet-of-Things (IoT) and edge computing have been major paradigms for distributed data collection, communication, processing, smart city applications in real world tend to adopt IoT broadly. Today, more machine learning algorithms would be deployed into front-end sensors, devices, centres rather than centralised cloud centres. However, sensors devices are usually not so capable as those units huge centres, this sake, practice, engineers choose compromise limited capacity of...

10.3390/s19091987 article EN cc-by Sensors 2019-04-28

Different from the dominant view of treating fuzzy reasoning as generalization classical logical inference, in this paper is treated a control problem. A new method proposed that employs an explicit feedback mechanism to improve robustness reasoning. The rule base given priori serves controlled object, and corresponding controller. constitute system may be open loop or closed loop, depending on underlying goals/constraints. base, method, goals/constraints define three distinct ingredients...

10.1109/tfuzz.2007.896275 article EN IEEE Transactions on Fuzzy Systems 2008-06-01

Fuzzy reasoning methods are extensively used in intelligent systems and fuzzy control. Most existing follow rules of logical inference. In this article, is treated as an optimization problem. The idea optimal reviewed three new given by using objective functions. robustness reasoning, that is, how errors premises affect conclusions evaluated a probabilistic or statistical context the Monte Carlo simulation method. Six comparison with CRI method terms robustness. © 2004 Wiley Periodicals,...

10.1002/int.20035 article EN International Journal of Intelligent Systems 2004-01-01

10.1016/j.nima.2007.03.008 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2007-03-15

To prepare a stable complex of doxycycline (Doxy) and hydroxypropy-β-cyclodextrin (HP-β-CD) for ophthalmic delivery, the optimum formulation preparation conditions were investigated using response surface methodology (RSM), artificial neural network (ANN) support vector machine (SVM) modeling. The molar ratios HP-β-CD/Doxy Mg2+/Doxy, inclusion time temperature selected as independent variables (X1–X4) efficiency stability Doxy-HP-β-CD dependent (response) (Y1 Y2). optimal predicted by...

10.1016/j.apsb.2013.01.002 article EN cc-by-nc-nd Acta Pharmaceutica Sinica B 2013-03-13

Vehicle re-identification (re-id) plays an important role in intelligent surveillance. Since difference vehicle models may have similar appearances, together with the problem of image scale variations, re-id remains long-term challenging. We present a novel multi-scale framework using self-adapting label smoothing regularization (SLSR). It integrates appearance information from images to alleviate influence changes caused by perspectives. To enhance generalization ability feature...

10.1109/icassp.2019.8682599 article EN ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2019-04-17

Support Vector Machine (SVM) and information fusion technology based on D-S evidence theory are used to diagnose wear fault of AC engines. Firstly, a number frequently oil sample analysis methods for detecting engine fault, establish corresponding sub SVM classifier. The classifier can reflect the mapping relation between symptoms types achieve result single diagnosis item. And then, use make over item so as diagnosis. With serving example, example testing is performed. shows that in...

10.4304/jcp.7.9.2292-2297 article EN Journal of Computers 2012-09-01

Terrain rendering is an important issue in Geographic Information Systems and other fields. During large-scale, real-time terrain rendering, complex structure increasing amount of data decrease the smoothness rendering. Existing methods rarely use features to optimize This paper presents a method increase performance through precomputing roughness self-occlusion information making GIS-based Digital Analysis. Our based on GPU tessellation. We quadtrees manage patches take surface Analysis as...

10.3390/ijgi10100666 article EN cc-by ISPRS International Journal of Geo-Information 2021-10-01

In this paper, a simplified constellation architecture consisting of only two navigation satellites located around the Earth-Moon L 1,2 libration points is obtained for Universe Lighthouse. order to determine feasible constellations that can achieve continuous global coverage lunar orbits, an exhaustive search over all possible combinations point orbits performed first. With use fitting procedure, amplitude relations between 1 and 2 are derived by polynomial interpolation. After that,...

10.1017/s0373463316000114 article EN Journal of Navigation 2016-04-05

This paper describes an auto-parking system, which is based on the binocular theory and bidirectional path-planning method. At first, according to theory, two CCD cameras are used get image information of their surroundings then constraint extracted via three-dimensional reconstruction techniques. Second, a method applied design optimal path. last, simulation OpenCV platform carried out result relatively good.

10.1109/iciea.2011.5975589 article EN 2011-06-01

Deformable registration plays a fundamental and crucial role in scenarios such as surgical navigation image-assisted analysis. While deformable methods based on unsupervised learning have shown remarkable success predicting displacement fields with high accuracy, many existing networks are limited by the lack of multi-scale analysis, restricting comprehensive utilization global local features images. To address this limitation, we propose novel network called feature extraction-integration...

10.3389/fnins.2024.1364409 article EN Frontiers in Neuroscience 2024-04-12

Although many ground motion prediction equations have been proposed for both the horizontal and vertical spectral accelerations of shallow crustal earthquakes in Western China, few established vertical-to-horizontal acceleration (V/H) ratios this region. Therefore, study derived a new model V/H China. First, predictive accuracies overseas ratio models were evaluated using earthquake records from China; results confirmed that obtained predictions significantly differed records. Next, effects...

10.2139/ssrn.4845523 preprint EN 2024-01-01

The human population is growing at an extremely rapid rate, the demand of food supplies for survival and sustainability life a gleaming challenge.Each living being in planet gets bestowed with healthy to remain active healthy.Agriculture domain which important as it provides fundamental resources terms supplying thus economy entire world highly dependent on agricultural production.The production often affected by various environmental geographical factors are difficult avoid part...

10.17559/tv-20230530000682 article EN cc-by Tehnicki vjesnik - Technical Gazette 2023-09-05

Hyperspectral imaging can capture detailed spectra of materials, but due to conditions and equipment limitations, the cost hyperspectral data collection is extremely high. Leveraging low-priced easy-obtainable RGB images generate (HSIs) has gradually become a trend. Benefiting from advantages denoising diffusion probability model (DDPM) in natural image super-resolution tasks, we consider structural characteristics HSI design novel spectral algorithm, named R2H-CCD, which imagery generation...

10.1109/igarss52108.2023.10281589 article EN IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium 2023-07-16

Person re-identification (reid) aims at matching pedestrians observed from non-overlapping camera views. It has important applications in surveillance video analysis such as human retrieval, tracking and activity analysis. Although a large number of effective feature learning distance metric optimizing approaches have been proposed, it still suffers pedestrian appearance variations caused by pose changing. Most the previous methods address this problem pose-invariant descriptor subspace. In...

10.1109/icpr48806.2021.9411999 article EN 2022 26th International Conference on Pattern Recognition (ICPR) 2021-01-10

10.1016/j.jvcir.2021.103220 article EN Journal of Visual Communication and Image Representation 2021-07-20
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