Research Article
A Marine Object Detection Algorithm Based on SSD and Feature Enhancement
Table 1
Performance of sea urchin recognition under different test models with or without feature enhancement.
| Model | Input size | (4th channel) | AP (%) |
| SSD | | NO | 73.4 |
| ISSD | | Sobel operator 2 directions | 82.9 | Prewitt operator 2 directions | 82.1 | Prewitt operator 4 directions | 82.3 | Prewitt operator 8 directions | 82.3 | Prewitt operator 16 directions | 83.1 | Laplace operator unidirectional | 82.4 |
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