Object detection algorithms have been widely used in important fields such as national defense, military industry and transportation. However, due to the limitation of computing power and power consumption of hardware devices, most of the object detection models deployed in mobile devices are lightweight models, and their detection accuracy can not fully meet the needs of complicated scenes. This paper proposes a new model adding path aggregation and attention mechanism to nanodet, an anchor-free detection model, and improves the detection accuracy with litte cost. On our dataset, tested with RTX 3080TI the AP50 reaches 62.09% and only cost little additional inference time. It has a good reference value for the deployment of lightweight model in engineering practice.
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