YOLO-DFD: A Lightweight Method for Dog Feces Detection Based on Improved YOLOv4

Table 1

Backbone network structure.

Layers	Operator	Operator size	Input size
1	Conv	3,16,3
2	Bneck	3,16,16
3	Bneck	3,16,24
4	Bneck	3,24,24
5	Bneck	5,24,40
6	Bneck	5,40,40
7	Bneck	5,40,40
8	Bneck	3,40,80
9	Bneck	3,80,80	26 × 26 × 80
10	Bneck	3,80,80
11	Bneck	3,80,80
12	Bneck	3,80,112
13	Bneck	3,112,112
14	Bneck	5,112,160
15	Bneck	5,160,160
16	Bneck	5,160,160