# A-Contrario Horizon-First Vanishing Point Detection Using Second-Order Grouping Laws

Gilles SimonAntoine FondMarie-Odile Berger

We show that, in images of man-made environments, the horizon line can usually be hypothesized based on an a contrario detection of second-order grouping events. This allows constraining the extraction of the horizontal vanishing points on that line, thus reducing false detections... (read more)

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