Target identification method and device

The embodiment of the invention provides a target identification method and device, and the method comprises the steps: inputting a to-be-identified image into a backbone network of a target detection model, and obtaining a first mask feature of the to-be-identified image outputted by the backbone network, and a circumscribed rectangle feature of a to-be-identified object in the to-be-identified image; processing the external rectangle feature and the first mask feature to obtain a second mask feature of the to-be-identified object; and inputting the second mask feature into a cascade detection head of the target detection model, and identifying the to-be-identified target through the cascade detection head to obtain an identification result. Through the method and the device, the problem that polygons in the image cannot be identified is solved, and the effect of overcoming the limitation caused by the fact that only rectangular detection frames can be output in the target detection technology is achieved. 本