Unmanned aerial vehicle aerial image and satellite image matching method

The invention relates to an unmanned aerial vehicle aerial image and satellite image matching method, in particular to an unmanned aerial vehicle aerial image and satellite image matching method. The objective of the invention is to solve the problem of low matching accuracy caused by great difference of scales and features between images when an unmanned aerial vehicle aerial image is matched with a satellite image in the prior art. The method comprises the following steps: 1, performing direction registration on an aerial image of an unmanned aerial vehicle based on a satellite image; 2, obtaining an unmanned aerial vehicle aerial image after scale space registration; 3, acquiring sub-images of the satellite image; 4, acquiring a trained feature extraction network; 5, extracting the feature vector of the aerial image and the feature vector of the sub-image of the satellite image; and calculating feature response scores of the feature vectors of the aerial image and the feature vectors of the sub-images of t