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Disparities and Depth

The slightly different perspectives from which our eyes perceive the world lead to different retinal images, with relative displacements of objects (disparities) in the two monocular views of a scene:
Shift of objects in stereo
images

The size and direction of the disparities of an object is a measure of its relative depth; absolute depth-information can be obtained if the geometry of the imaging system is known.

Try it yourself: Calculate disparities from a real stereo image!


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