Feature matching method and device and scene reconstruction method and device

The invention provides a feature matching method and device and a scene reconstruction method and device, and relates to the technical field of image processing. The feature matching method comprises the steps of determining relative motion transformation information between a first image frame and a second image frame based on the first image frame and the second image frame of a target scene acquired by image acquisition equipment of an aircraft; determining respective overlapping regions of the first image frame and the second image frame based on the relative motion transformation information; and determining feature matching information corresponding to the first image frame and the second image frame based on the respective overlapping areas of the first image frame and the second image frame. Characteristic matching is carried out through the overlapping areas of the first image frame and the second image frame, the matching search area is effectively limited, the number of key feature points extracted