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The Spinning Dancer, also known as the Silhouette Illusion, is a kinetic, bistable, animated optical illusion originally distributed as a GIF animation showing a silhouette of a pirouetting female dancer. The illusion, created in 2003 by Japanese web designer Nobuyuki Kayahara, [1] [2] involves the
Spinning_Dancer_Optical_Illusion_(2040_frames).ogv (Ogg Theora video file, length 1 min 1 s, 300 × 400 pixels, 673 kbps, file size: 4.91 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
For instance, the rotating circles illusion [5] and the rotating dots visualization [6] (which is similar in principle to the projected wireframe demonstration mentioned above) rely strongly on the previous knowledge that objects (or parts thereof) further from the observer appear to move more slowly than those that are closer.
The Hollow-Face illusion is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face. Hybrid image: A Hybrid image is an optical illusion developed at MIT in which an image can be interpreted in one of two different ways depending on viewing distance. Illusory contours
When it was introduced in the French newspaper Le Figaro in June 1833, the term 'phénakisticope' was explained to be from the root Greek word φενακιστικός phenakistikos (or rather from φενακίζειν phenakizein), meaning "deceiving" or "cheating", [2] and ὄψ óps, meaning "eye" or "face", [3] so it was probably intended loosely as 'optical deception' or 'optical illusion'.
Optical illusion is also used in film by the technique of forced perspective. Op art is a style of art that uses optical illusions to create an impression of movement, or hidden images and patterns. Trompe-l'œil uses realistic imagery to create the optical illusion that depicted objects exist in three dimensions.
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The Motograph Moving Picture Book was published in London at the start of 1898 by Bliss, Sands & Co. [4] It came with a "transparency" with black stripes to add the illusion of motion to the pictures in the book (13 in the original black and white edition and 23 in the later color edition). The illustrations were credited to "F.J. Vernay ...