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Optical Remote Sensing Image Ship Detection Method for Improving EfficientDet

To address the false alarm and missed detection problems caused by large differences in ship types, ships side by side and complex backgrounds in optical remote sensing images, a High-Efficiency Channel Attention Network (HECAN) model is proposed in this paper. We enhance the detection capability of the model for small-scale ships based on the EfficientDet model by using an efficient channel attention optimized feature extraction network to solve the channel information loss problem. Meanwhile, the Soft-NMS is used to improve the non-maximum suppression algorithm of the model to improve the recall rate of side-by-side ships. The results are compared with other object detection models and show that the HECAN model detects better on small-scale and side-by-side ships with an average precision of 92.46% and and a recall rate of 4.75% higher than the original EfficientDet.