Garbage identification method and device based on orthoimage of unmanned aerial vehicle

The invention provides a garbage recognition method and device based on an unmanned aerial vehicle ortho-image, and relates to the technical field of image processing, and the method specifically comprises the steps: segmenting a to-be-recognized unmanned aerial vehicle ortho-image into sub-images of a preset size; processing each sub-image by using a pre-trained garbage scene classification model to obtain a garbage scene classification result of each sub-image, the garbage scene classification result including a probability value of an agricultural production waste scene, a probability value of a water body environment scene, a probability value of a waste sundry scene and a probability value of a disordered scene; processing each sub-image by using a pre-trained garbage recognition model to obtain a garbage recognition result vector of each pixel of each sub-image; and based on the junk scene classification result of the sub-image, further identifying the junk identification result vector of each pixel of