Pyramid Residual Neural Network with Attention for Seismic Data Denoising

In recent years, seismic data processing based on deep convolutional neural networks (CNN) has made great progress. However, most of these methods rely on the feature information on the same scale and cannot make full use of the self-similarity of seismic data. In order to solve this problem, this paper proposes a novel Pyramid Attention Residual Neural Network (PARNet) for seismic data denoising. Specifically, the main framework of the network includes the residual block (ResBlock), the residual block with multi-core convolutional layer, the parallel space and channel attention (MSCARB) and the pyramid module(Pyramid Module). Among them, MSACRB can not only extract more abundant features, but also focus on the features of channel and spatial dimension, so as to achieve stronger feature representation. The pyramid module captures multi-scale features through dilated convolution with different expansion rates. At the same time, the global context module can capture the global information of the feature map. The combination of the above two modules can achieve the purpose of capturing multi-scale global context features. This method has been verified on synthetic seismic data and field seismic data. The experiments use PSNR and SSIM as evaluation indicators. A large number of experiments have demonstrated that PARNet has efficient denoising ability and a competitive advantage compared with the latest seismic data denoising methods.