1. Brief description
The Harris corner and edge detector is an old technology, said to be old because it was invented in 1988. The following is the address of the paper. Although the technology has been around for a long time, it does not mean that it is useless. In many scenarios where neural networks cannot play a role, similar technologies will still be popular.
https://web.stanford.edu/class/cs231m/references/harris-stephens.pdf 
https://web.stanford.edu/class/cs231m/references/harris-stephens.pdf The original purpose of the Harris corner detector is to detect corners and edges for motion analysis throughout the image sequence. The reason for tracking edges is that they enable high-level features to be obtained, as they provide insights into different objects, surfaces, and textures. However, matching edges from frame to frame is a very