The Episolar Constraint: Monocular Shape from Shadow Correspondence

CVPR 2013 Austin AbramsKylia MiskellRobert Pless

Shadows encode a powerful geometric cue: if one pixel casts a shadow onto another, then the two pixels are colinear with the lighting direction. Given many images over many lighting directions, this constraint can be leveraged to recover the depth of a scene from a single viewpoint... (read more)

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