Dual-Band Maritime Imagery Ship Classification Based on Multilayer Convolutional Feature Fusion

Figure 2

An example of two improved RNN architectures. (a) Multilayer Block RNN merges convolutional feature into a parent vector through multiple layers and blocks of children in the end. (b) One-layer Block RNN merges convolutional feature into a parent vector through one layer and one block of children. Note that and .

(a) Multilayer Blocks RNN

(b) One-layer Block RNN