First-Arrival Picking for Microseismic Monitoring Based on Deep Learning

Figure 16

First-arrival picking results of the forward modeling profile with -8-dB Gaussian noise added. (a) The noisy profile formed by adding the Gaussian noise with the SNR of -8-dB to the profile shown in Figure 6. (b) The noisy profile intermediate features extracted by C5 layer of the UNet++. (c) First-arrival prediction results obtained by the UNet++ and the U-Net.