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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Phys Med Biol. 2018 May 1;63(9):095005. doi: 10.1088/1361-6560/aabb5b

Fig. 4.

Fig. 4

Filter kernels of size 11 × 11 pixels from convolutional layer, C1. Top: 64 nodes from original DCNN, bottom: 16 nodes from pruned DCNN. C1 layer is frozen during the first stage of transfer learning.