Using AI to animate historical photos

I have started to find videos someone has created using an historical photo and AI to animate the image.
The videos animate both the subjects within the frame and the camera itself, so the camera in some case pans or moves on tracks. This one is from Civil War photos.
This is kind of a cool use of the tech. Moving the camera requires AI to guess what the area not in the original photo will look like, but this is not too difficult in the scenes shown.
I have...

Using AI to animate historical photos