This is a cool technique of blending time-lapse (a favorite of mine!) and real-time skateboarders. This turned out very cool – details from PetaPixel:
Upon first glance, Open Horizon by photographer and filmmaker Russell Houghten might look like a pretty ordinary video that shows time-lapse footage mixed with skateboarding videos. Take a closer look, however, and you start to realize somethings not quite right: the world is whizzing by as the skateboarders do their tricks. Houghten spend a great deal of time and effort rotoscoping his skateboarding scenes to show the skateboarders skating in real time while the world around them passes in time-lapse.
