Video stitching method and device

A video stitching device, comprising:

• a memory;
• and
• a processor,
• wherein executable instructions are stored in the memory, and the executable instructions can be executed by the processor to implement a video stitching method,
• the video stitching method is applicable for stitching a first video and a second video, and comprises:
• extracting features respectively from a first target frame of the first video and a second target frame of the second video, performing feature matching on the features respectively extracted from the first target frame and the second target frame, and screening matched features, so as to obtain a first feature point pair set between the first target frame and the second target frame;
• performing forward tracking of a forward feature point pair set between the first target frame and the second target frame on the first target frame and the second target frame, so as to obtain a second feature point pair set between the first target frame and the second target frame;
• performing backward tracking of a backward feature point pair set between the first target frame and the second target frame on the first target frame and the second target frame, so as to obtain a third feature point pair set between the first target frame and the second target frame;
• and
• calculating a geometric transformation relationship between the first target frame and the second target frame according to a union of the first feature point pair set, the second feature point pair set and the third feature point pair set between the first target frame and the second target frame.