2013年世界视错觉大赛前三名

（由于本人英文水平拙劣，就不翻译了，贴出原文大家看看。如果哪位网友能翻译请联系我，谢谢。）

This illusion concerns apparent rotation generated by pure translation. Square patterns consisting of four segments appear to rotate when they move straightly at a constant speed across the grid background. More surprisingly, the rotations in opposite directions can be generated by exactly the same square patterns. This illusion might be explained by

well-known inchworm illusion; inchworm illusion arises at the four segments one after another resulting in the impression of rotation. This illusion is new in the sense that the rotation is generated by pure

translation.

第二名：Tusi or not Tusi

Tusi Motion:In the two figures to the left, each colored dot moves on a straight path along the radial lines—like the point on the circumference of the circle in the manuscript illustration above. Changing the relative phase of the colored dots makes the global percept appear as radiating lines or as a spinning circle.

Not Tusi Motion:In the two figures to the left, each colored dot moves on a circular path—very different from the motion Tusi described. Changing the relative phase of the dots makes the global percept appear as lines spinning around the circle or as a circle that moves around inside the outer circle, but – unlike Tusi motion – the inner circle does not spin.

Tusi or Not Tusi:The motion from Tusi and Not Tusi can be made to overlap. In the figure to the left, all the dots are black except for two.  The blue dot follows a straight path (as in theTusi motion demonstration);the orange dot follows a circular path (as in the Not Tusi motion demonstration). When an observer attends to the blue dot,the inner circle appears to spin as it moves inside the outer circle, and when an observer attends to the orange dot,the inner circle does not appear to spin as it moves inside the outer circle.

第三名：Through the Eyes of Giants

If a giant whose eyes are 200 yards apart look down at your city, how would the city appear to him? We boarded a Cessna and took areal photographs of Boston from viewing points hundreds of yards apart, then converted the shots to anaglyphs. Using 3D glasses, you can now experience Boston through the eyes of a giant. This way, you perceive the city as a miniature 3D model of Boston; a city that is tiny compared to your head size but has all the details of a real city.

这个……带上3D眼镜（红蓝、红绿）来看就会有效果。