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Video of a spinning, patterned paper disc. At a certain speed the sets of spokes appear to slow and rotate in opposite directions. The wagon-wheel effect (alternatively called stagecoach-wheel effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation. The wheel can appear to rotate more slowly ...
Rolling shutter. A Eurocopter EC-120 helicopter – the rotor blades seem to be swept back more than usual due to the rolling-shutter effect. Rolling shutter is a method of image capture in which a still picture (in a still camera) or each frame of a video (in a video camera) is captured not by taking a snapshot of the entire scene at a single ...
Guvcview. Guvcview ( GTK+ UVC Viewer) is a webcam application, i.e. software to handle UVC streams, for the Linux desktop, started by Paulo Assis in 2008. The application is written in C [ 1][ 2] and is free and open-source software released under GPL-2.0-or-later . Guvcview is compatible with all V4L2 camera devices, using the Linux UVC driver ...
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An in-camera effect is any special effect in a video or movie that is created solely by using techniques in and on the camera and/or its parts. The in-camera effect is defined by the fact that the effect exists on the original camera negative or video recording before it is sent to a lab or modified. So effects that modify the original negative ...
Sabattier effect (solarization) (photographic processes) (science of photography) Sachs–Wolfe effect (astronomy) (physical cosmology) Sagnac effect (optics) (relativity) Sailing Ship Effect (business) (economics) Samba effect (Brazil) (economy of Brazil) (history of Brazil) Sandbox effect (Internet technology) (search engine optimization)
A dolly zoom (also known as a Hitchcock shot, [ 1][ 2][ 3] Vertigo shot, [ 4][ 2] Jaws effect, [ 4] or Zolly shot[ 5]) is an in-camera effect that appears to undermine normal visual perception . The effect is achieved by zooming a zoom lens to adjust the angle of view (often referred to as field of view, or FOV) while the camera dollies (moves ...
The mistaken identity (often of one twin for another) is a centuries-old comedic device used by Shakespeare in several of his works. The mistake can be either an intended act of deception or an accident. Modern examples include The Parent Trap; The Truth About Cats and Dogs; Sister, Sister; and the films of Mary-Kate and Ashley Olsen.