Fig. 4.

Block diagram of the proposed method, where $F{W}_j(I)$ and $F{P}_j(I)$ represents the foreground features extracted from jth pooling layers ($j\in \{3,4\}$) at whole-level and part-level, respectively. Similarly, $B{W}_j(I)$ and $B{P}_j(I)$ represents the background features extracted from the jth pooling layer at whole-level and part-level, respectively