A new illusion demonstrating the perception of tilted objects is reported. Physically, all the objects in a rotated image should tilt at the same degree. We, however, found that the tilt of objects in a rotated frame is perceived differently. We tested several objects and found that this phenomenon is especially noticeable when an element in the image has a non-geometric shape. A possible mechanism for this illusion is proposed.
KingdomF A AYoonessiAGheorghiuE, 2007“The Leaning Tower illusion: A new illusion of perspective”Perception36475–477
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