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vanishing point

The single point in an image where lines that are parallel in real life appear to converge because of perspective.

A vanishing point is the point in an image where lines that are parallel in the real world appear to meet. It shows up whenever a projective transform's freed bottom row makes the perspective divide depend on position; a fixed-bottom-row affine transform can never produce one.

Examples

  • A photo of parallel railroad tracks shows them converging toward a single vanishing point near the horizon, something no affine transform can ever produce.

See also

projective transform parallel lines
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