Length of Lines (View of Street)

Estimation 10 October 2012 0 Comments

This is an excellent example of the way in which our eyes deceive us.  In the street view shown below, the line AB looks to be much longer than line CD.  If you measure them, however, you will find that they are exactly the same length.

Length of Lines (View of Street) - Estimation Illusion

This image is a scan of one of twenty-five optical illusion cards from 1923 released by Ogden’s, a branch of the Imperial Tobacco Co.

The Ponzo illusion is another line illusion that uses linear perspective to confuse the viewer.

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