Fig. 3
From: A variant of the Hough Transform for the combined detection of corners, segments, and polylines

Representation of two segments of a line l(d l ,θ l ) in the 3D Hough space
From: A variant of the Hough Transform for the combined detection of corners, segments, and polylines
Representation of two segments of a line l(d l ,θ l ) in the 3D Hough space