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- Leaning_tower_illusion abstract "The leaning tower illusion is a visual illusion seen in a pair of identical images of the Leaning Tower of Pisa photographed from below. Although the images are duplicates, one has the impression that the tower on the right leans more, as if photographed from a different angle. The illusion was discovered by Frederick Kingdom, Ali Yoonessi and Elena Gheorghiu at McGill University, and won first prize in the Best Illusion of the Year Contest 2007.The authors suggest that the illusion occurs because of the way the visual system takes into account perspective. When two identical towers rise in parallel but are viewed from below, their corresponding outlines converge in the retinal image due to perspective. The visual system "corrects" for the perspective distortion and sees the towers correctly, i.e. rising in parallel. However in the two identical images of the Pisa tower, the corresponding outlines do not converge but are parallel, and hence the towers are perceived as non-parallel, i.e. as diverging. The illusion reveals that the visual system is obliged to treat the two images as part of the same scene, in other words the "Twin Towers of Pisa".Although the Pisa tower demonstrates the illusion and provides a pun for its name, the illusion can be seen in any pair of (identical) images of a receding object.".
- Leaning_tower_illusion thumbnail Pisa.tower04.jpg?width=300.
- Leaning_tower_illusion wikiPageID "14682410".
- Leaning_tower_illusion wikiPageLength "1970".
- Leaning_tower_illusion wikiPageOutDegree "7".
- Leaning_tower_illusion wikiPageRevisionID "663368521".
- Leaning_tower_illusion wikiPageWikiLink Best_Illusion_of_the_Year_Contest.
- Leaning_tower_illusion wikiPageWikiLink Category:Optical_illusions.
- Leaning_tower_illusion wikiPageWikiLink Leaning_Tower_of_Pisa.
- Leaning_tower_illusion wikiPageWikiLink McGill_University.
- Leaning_tower_illusion wikiPageWikiLink Optical_illusion.
- Leaning_tower_illusion wikiPageWikiLink Visual_illusion.
- Leaning_tower_illusion wikiPageWikiLink File:Pisa.tower04.jpg.
- Leaning_tower_illusion wikiPageWikiLinkText "Leaning tower illusion".
- Leaning_tower_illusion hasPhotoCollection Leaning_tower_illusion.
- Leaning_tower_illusion wikiPageUsesTemplate Template:Psychology-stub.
- Leaning_tower_illusion wikiPageUsesTemplate Template:Reflist.
- Leaning_tower_illusion subject Category:Optical_illusions.
- Leaning_tower_illusion hypernym Illusion.
- Leaning_tower_illusion type Film.
- Leaning_tower_illusion type Illusion.
- Leaning_tower_illusion comment "The leaning tower illusion is a visual illusion seen in a pair of identical images of the Leaning Tower of Pisa photographed from below. Although the images are duplicates, one has the impression that the tower on the right leans more, as if photographed from a different angle.".
- Leaning_tower_illusion label "Leaning tower illusion".
- Leaning_tower_illusion sameAs 斜塔錯視.
- Leaning_tower_illusion sameAs Schevetorenillusie.
- Leaning_tower_illusion sameAs m.03gsz_5.
- Leaning_tower_illusion sameAs Q2451309.
- Leaning_tower_illusion sameAs Q2451309.
- Leaning_tower_illusion wasDerivedFrom Leaning_tower_illusion?oldid=663368521.
- Leaning_tower_illusion depiction Pisa.tower04.jpg.
- Leaning_tower_illusion isPrimaryTopicOf Leaning_tower_illusion.