A parameter-adaptive spectral graph wavelet transform method for wind turbines vibration signal denoising

J Liu, Q Zhang, D Li, Y Teng, S Wu, X Wang - International Journal of …, 2024 - Elsevier
The signal noise can have a negative impact on the accuracy of engineering equipment
condition assessment. However, the choice of decomposition layers and design parameters …

An iterative reconstruction algorithm for unsupervised PET image

S Wang, B Liu, F Xie, L Chai - Physics in Medicine & Biology, 2024 - iopscience.iop.org
Objective. In recent years, convolutional neural networks (CNNs) have shown great potential
in positron emission tomography (PET) image reconstruction. However, most of them rely on …

PET Image Representation and Reconstruction based on Graph Filter

S Guo, Y Sheng, D Xiong… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Due to count limitations, PET image reconstruction from low count data is challenging,
resulting in the reconstructed image with high noise and blurred outline structures. By …