Astronaut Visual Tracking of Flying Assistant Robot in Space Station Based on Deep Learning and Probabilistic Model

Figure 6

Prior bounding boxes and proposals on the main prediction layers.

(a) Prior bounding boxes at each cell

(b) Proposals on 10 × 10 layer Concat7

(c) Proposals on 5 × 5 layer Concat8

(d) Proposals on 3 × 3 layer Concat9