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Instance segmentation algorithms based on deep learning are capable of helping intelligent vehicles to obtain accurate perception information. However, due to the limitation of manufacturing cost, the computing resources on intelligent vehicles are usually limited. In order to obtain highprecision recognition and segmentation under limited computing resources, the algorithm itself is required to make full use of the extracted features. Meanwhile, although the onestage instance segmentation algorithm has a relative fast inference speed, it has poor performance in accuracy. To this end, structural improvement based on the onestage instance segmentation algorithm SparseInst is conducted to enhance the model's utilization of effective features. Specifically, firstly, residual connection is added inside the basic building block of the backbone. Secondly, a threescale feature fusion module is designed to overcome the problem of indirect interaction of crossscale features in the encoder. A decoupled instance activation module is designed to enhance the model's ability to learn instance features. In addition, the improved algorithm makes full use of detail features to refine the mask features to improve the quality of the generated masks. Finally, the kernel is used to initialize the score of the target object, which improves the utilization rate of the extracted features. The improved algorithm surpasses similar algorithms in mask accuracy on multiple datasets and has strong realtime performance. To further verify the effectiveness of the improved algorithm, experiments using data
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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