Superresolution Reconstruction Algorithm of Ultrasonic Logging Images Based on High-Frequency Enhancement

Figure 7

Feature map comparison: (a) is the 64-channel feature map extracted from the 16th residual block of SRResNet; (c), (e), and (g) are the amplification display of the feature map of the 4th, 42nd, and 55th channels, respectively; (b) is the 64-channel feature map extracted from the 16th block of the multiscale cavity convolution block proposed in this paper; and (d), (f), and (h) are the enlarged display of the feature map of the 4th, 42nd, and 55th channels, respectively.

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