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

Figure 6

The prediction process of the feature layer. (a) The original SSD predictor: obtain the score of each category and the change of the prior box after two convolution routes. (b) The improved predictor: add the residual structure on the basis of (a) to obtain the prediction result.

(a)

(b)