A5101815141- Optical measurement and interference techniques
- Advanced Vision and Imaging
- Robotics and Sensor-Based Localization
- Advanced Measurement and Metrology Techniques
- Mechanical Behavior of Composites
- 3D Surveying and Cultural Heritage
- Analytical Chemistry and Sensors
- Photoacoustic and Ultrasonic Imaging
- Composite Material Mechanics
- Textile materials and evaluations
- Advanced Measurement and Detection Methods
- Remote Sensing and LiDAR Applications
- Image and Object Detection Techniques
- Image Processing Techniques and Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Industrial Vision Systems and Defect Detection
- Robotic Path Planning Algorithms
- Astronomical Observations and Instrumentation
- Optical Systems and Laser Technology
- Spectroscopy and Chemometric Analyses
- Advanced Optical Sensing Technologies
- Electrochemical sensors and biosensors
- Topology Optimization in Engineering
- Infrastructure Maintenance and Monitoring
- Welding Techniques and Residual Stresses
Northwestern Polytechnical University
2021-2025
Shanghai Jiao Tong University
2015-2024
Jiangxi Copper (China)
2024
Communication University of China
2024
Harbin Institute of Technology
2021
Xihua University
2020
Guangzhou Institute of Geography
2014
Jinzhou Medical University
2013
Dalian Polytechnic University
2013
Chenguang Research Institute of Chemical Industry
2012
Railway inspection is an important task in railway maintenance to ensure safety. The fastener a major part of the which fastens tracks ground. current article presents efficient method detect fasteners on basis image processing and pattern recognition techniques, can be used absence corresponding track high-speed(up 400 km/h). Direction Field extracted as feature descriptor for recognition. In addition, appropriate weight coefficient matrix presented robust rapid matching complex...
Nowadays, lateral flow immunochromatographic assays are increasingly popular as a diagnostic tool for point-of-care (POC) test based on their simplicity, specificity, and sensitivity. Hence, quantitative detection pluralistic application urgently needed in medical examination. In this study, smartphone-based dual-modality imaging system was developed of color or fluorescent strips, which can be operated anywhere at any time. system, the white ultra-violet (UV) light optical device designed,...
The rapid developments of mobile robotics and autonomous navigation over the years are largely empowered by public datasets for testing upgrading, such as sensor odometry SLAM tasks. Impressive demos benchmark scores have arisen, which may suggest maturity existing techniques. However, these results primarily based on moderate structured scenario testing. When transitioning to challenging unstructured environments, especially in GNSS-denied, texture-monotonous, dense-vegetated natural...
A line-structured laser scanner is widely applied for 3D reconstruction in industrial environments with ubiquitous various luminance, complicated background, diverse objects, and instable lasers. These elements will show up as noise the obtained stripe images. Therefore, basic key point a to accurately extract from noise. This paper proposes an effective extraction procedure two steps. First, novel center method based on geometry information correlation stripe, designed significantly...
This article presents a distance accuracy technique for zero-offset industrial robot calibration based on 3-D positioning and posture (3DPP) sensor along with modified Denavit–Hartenberg (MDH) kinematics identification. Industrial robots' tend to diminish rapidly due repetitive tasks heavy loads. Many aspects can be involved in reducing the of robot; therefore, using proper sensors identification methods is essential increase or restore back original state. Normally, maintenance requires...
The increasing train speed on railways generates an urgent need for more powerful automatic inspection of railway tracks, including real-time fastening component inspection. To obtain better high-speed performance with lower cost, this paper has proposed a novel structured light method based motion image (SLMMI) moving object images in the are insensitive to motion, abundant information, and easy process, resulting low requirement hardware. Compared conventional unstructured method, inherits...
Interior fibers in yarns of plain woven carbon fiber-reinforced composite are distributed randomly, which further influences the mechanical properties yarns. To explore stochastic nature fibers’ distribution yarn and its effect on yarn, this study proposes a new perturbation algorithm named Sequential Random Perturbation to reconstruct microstructure randomly fibers, based representative volume element micromechanical models consisting three phases accurately predict established. The is...
Leaf extraction is an important step for automatic feature extraction, leaf classification and plant species identification, etc. But it still a challenging problem especially from the images with complicated background such as some interferents overlaps between two adjacent leaves. In this paper, we have developed algorithm to extract target background. algorithm, marker-controlled watershed segmentation method applied on gradient of hue, intensity saturation HSI color space, separately....
Quantitative photoacoustic tomography (qPAT) holds great potential in estimating chromophore concentrations, whereas the involved optical inverse problem, aiming to recover absorption coefficient distributions from images, remains challenging. To address this we propose an extractor-attention-predictor network architecture (EAPNet), which employs a contracting-expanding structure capture contextual information alongside multilayer perceptron enhance nonlinear modeling capability. A spatial...
Diabetes mellitus (DM) is a chronic disease affecting nearly 400 million people worldwide. In order to manage the disease, patients need monitor blood glucose level by puncturing finger several times day, which uncomfortable and inconvenient. We present here potential non-invasive monitoring method based on velocity of ultrasonic waves generated in solution photoacoustic principal, can recognize concentration down 20mg/dL. apply this warm bodies, we carefully designed experiment performed...
Noninvasive blood glucose determination has received considerable attention in the past from both patients and scientists all over world, it is becoming increasingly important as a research focus. The two most difficult problems leading to no breakthrough this area are sensitivity specificity determination. In order obtain reliable measurement results of levels, we propose new liquid photoacoustic resonance theory that can significantly enhance intensity signal improve sensitivity. This...
Abstract Uncertainty analysis is an effective methodology to acquire the variability of composite material properties. However, it hard apply hierarchical multiscale uncertainty complex materials due both quantification and propagation difficulties. In this paper, a novel framework combined R-vine copula with sparse polynomial chaos expansions proposed handle problems. According strength correlations, two different strategies are complete propagation. If variables weakly correlated or...
Gene transfection has been widely applied in genome function and gene therapy. Although many efforts have focused on designing carrier materials methods, the influence of mechanical stimulation efficiency rarely studied. Herein, dielectric elastomer actuator (DEA)-based bioreactors are designed to generate tensile contractile stress cells simultaneously. With example EGFP transfection, with high membrane tension stretching regions had lower efficiency, while compressing tended increase....
The measurement of an object with a short arc is widely encountered in scientific research and industrial production. As the most classic method fitting, least squares fitting suffers from low precision when it used for arcs smaller central angles fewer sampling points. shorter arc, lower accuracy. In order to improve arcs, parameter constrained based on four-parameter circle equation proposed this paper. generalized Lagrange function was introduced together optimization by gradient descent...