Intelligent identification method for ship key part in infrared image

The invention discloses an intelligent identification method for ship key parts in an infrared image, and the method comprises the steps: building a ship priori information database, building a three-dimensional entity model and key parts of each ship under a three-dimensional coordinate system based on the ship priori information database, building an infrared ship detection network model of improved YOLOv7, and carrying out the recognition of the ship key parts in the infrared image. The method comprises the steps of obtaining a ship infrared image, separating a ship from a sea-sky background in the ship infrared image according to a model, and obtaining ship feature information; establishing a ship two-dimensional coordinate system based on the ship feature information; obtaining a separated ship image; carrying out gray scale equalization processing on the ship image; key parts in the ship image are obtained, geometric matching is carried out on the ship key parts under the two-dimensional coordinate syst