A5050951227- Advanced X-ray Imaging Techniques
- Advanced X-ray and CT Imaging
- Medical Imaging Techniques and Applications
- Advanced Machining and Optimization Techniques
- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Advanced Electron Microscopy Techniques and Applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Optical measurement and interference techniques
- Corrosion Behavior and Inhibition
- Industrial Vision Systems and Defect Detection
Nanjing University of Aeronautics and Astronautics
2023-2024
Institute of High Energy Physics
2021-2023
Chinese Academy of Sciences
2021-2023
Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing
2023
University of Chinese Academy of Sciences
2021-2023
X-ray tomography has been widely used in various research fields thanks to its capability of observing 3D structures with high resolution non-destructively. However, due the nonlinearity and inconsistency detector pixels, ring artifacts usually appear tomographic reconstruction, which may compromise image quality cause nonuniform bias. This study proposes a new artifact correction method based on residual neural network (ResNet) for tomography. The uses complementary information each wavelet...
Nano-resolution full-field transmission X-ray microscopy has been successfully applied to a wide range of research fields thanks its capability non-destructively reconstructing the 3D structure with high resolution. Due constraints in practical implementations, nano-tomography data is often associated random image jitter, resulting from imperfections hardware setup. Without proper registration process prior reconstruction, quality result will be compromised. Here deep-learning-based jitter...
X-ray tomography is widely used in diverse research domains owing to its capacity for observing high-resolution three-dimensional structures nondestructively. However, ring artifacts appear the tomographic reconstruction because of inconsistent response detector pixels, seriously affecting image quality and causing nonuniform bias. To solve this problem, a method correction based on Swin-Conv-U-Net proposed x-ray tomography. When applied simulation experimental data, achieves high accuracy...
Driven by the development of advanced x-ray optics such as Fresnel zone plates, nano-resolution full-field transmission microscopy (Nano-CT) has become a powerful technique for non-destructive volumetric inspection objects and long been developed at different synchrotron radiation facilities. However, Nano-CT data are often associated with random sample jitter because drift or radial/axial error motion rotation stage during measurement. Without proper correction process prior to...
The structured light (SL)-based 3D measurement techniques with deep learning have been widely studied, among which speckle projection profilometry (SPP) and fringe (FPP) are two popular methods. However, they generally use a single pattern for reconstruction, resulting in order ambiguity or poor reconstruction accuracy. To alleviate these problems, we propose parallel dual-branch Convolutional Neural Network (CNN)-Transformer network (PDCNet), to take advantage of convolutional operations...
A new co-rotating electrochemical machining method is presented to machine the complex structure inside annular parts such as flame tubes and aero-engine casings. Due unique shape motion of electrodes, it difficult accurately compute electric field intensity in area. In this paper, model simplified by conformal transformation, analytical solution exactly calculated. material removal built on basis model, dynamic simulation process realized. The effects cathode radius, applied voltage, feed...
Abstract X‐ray computed tomography (CT) is widely used as a non‐destructive inspection technology. However, due to various limitations such sample dimensions and blocking of in‐situ instruments, projections can be acquired only in limited‐angle range during CT acquisition. When are reconstructed with conventional algorithms, the details contours deteriorated by artefacts lack information at certain view angles. To address this problem, we propose reconstruction method based on...
A new co-rotating electrochemical machining method is presented to machine the complex structure inside annular parts such as flame tubes and aero-engine casings. Due unique shape motion of electrodes, it difficult accurately compute electric field intensity in area. In this paper, model simplified by conformal transformation, analytical solution exactly calculated. material removal built on basis model, dynamic simulation process realized. The effects cathode radius, applied voltage, feed...
Driven by the development of X-ray optics, spatial resolution full-field transmission microscope (TXM) has reached tens nanometers and plays an important role in promoting biomedicine materials science. However, due to thermal drift radial/axial motion error rotation stage, TXM computed tomography (CT) data are often associated with random image jitter errors along horizontal vertical directions during CT measurement. A nano-resolution 3D structure information reconstruction is almost...