The Application of Semisupervised Attentional Generative Adversarial Networks in Desert Seismic Data Denoising

Abstract

For imaging and interpretation, high-quality seismic data are necessary. However, noise, which is strong in field desert seismic data, inevitably diminishes the quality of the data and reduces the signal-to-noise ratio. Moreover, the effective signals and noise in field desert seismic data are mostly distributed in the low-frequency band, which leads to severe spectral aliasing. Recently, some deep learning methods have improved the quality of desert seismic data in certain aspects. However, due to limitations of their networks and the serious spectral aliasing of desert seismic data, the denoising results usually show some false seismic reflections. To solve the above problems, we introduce Unsupervised Generative Attentional Networks with Adaptive Layer-Instance Normalization for Image-to-Image Translation (U-GAT-IT) to the denoising of desert seismic data in a semisupervised manner. U-GAT-IT is an unsupervised attentional generative adversarial network (GAN) combined with an attention module guided by the class activation map (CAM). The attention module guided by the CAM can guide the model to better distinguish between noise and effective signals. The experiment shows that the U-GAT-IT can effectively suppress desert seismic noise. Also, the denoising result has fewer false seismic reflections.