Monday, November 2, 2015

Shape Constancy


Shape constancy allows us to see an object as a constant shape despite the fact that the object's shape on our retinas is different. For example, in the above image we see 4 angles of the same window. Because we are familiar with windows, we see these images as rectangles. In reality, the image of the window is not a rectangle on our retinas but varying parallelograms. Because we know windows to be rectangles or similarly window-shaped, this window is automatically perceived as a rectangle due to shape constancy.

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