NSD-SSD: A Novel Real-Time Ship Detector Based on Convolutional Neural Network in Surveillance Video

Table 3

The specific parameters of prior bounding boxes in the SSD algorithm.

Feature map	Size	Numbers
Conv4_3	38 × 38	4	1, 2
FC7	19 × 19	6	1, 2, 3
Conv8_2	10 × 10	6	1, 2, 3
Conv9_2	5 × 5	6	1, 2, 3
Conv10_2	3 × 3	4	1, 2
Conv11_2	1 × 1	4	1, 2