Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Miscellaneous Techniques › How Did They Do This in Nikon Video? › it looks like mostly they
it looks like mostly they are creating freeze frames from recorded video and then applying motion to the freeze frame.
If you enlarge the freeze frame too much, you will get pixelation, however, this was probably shot in HD. So delivering to web gave them some wiggle room.
It’s not hard to do. Research the Ken Burns effect. I’m sure any editing program can do this.