Multi-target detection method in open-air industrial scene

The invention discloses a multi-target detection method in an open-air industrial scene. The method comprises the following steps: acquiring a multi-target detection image in the open-air industrial scene; inputting the to-be-detected image into the multi-target detection model to obtain a target detection result of the to-be-detected image output by the multi-target detection model; wherein the multi-target detection model comprises a residual network, a feature pyramid, an attention module and a detection head; the detection head comprises a feature alignment module and a rotation feature detection module; adding a fog enhancement mechanism for model training at a model input end; the attention module is arranged between the feature extraction network and the detection head, a spatial attention module is applied to a shallow feature layer with a small number of channels, and a combined structure of the spatial attention module and a pixel attention module is applied to a deep feature layer with a large numb