*3.1. Framework Overview*

The overview of proposed approach is shown in Figure 1, where the green cubes denote image feature extracting process, the pink cube denote MB-RPN module and purple cube denote classification/regression networks for finetune. Table 1 shows the details of the network. The specific steps are as follows:


**Figure 1.** Architecture of Proposed Method.


**Table 1.** Details of Network.
