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doi:10.1016/0031-3203(90)90014-C 
Copyright © 1990 Published by Elsevier Science B.V.
Robust line-drawing extraction for polyhedra using weighted polarized hough transform
Received 7 February 1989;
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Abstract
The weighted polarized Hough transform (WPHT) and a new linking algorithm which will be shown to give benefits in robustness and speed are proposed for the line-drawing extraction of polyhedra. Unlike the standard Hough transform, the WPHT restricts the transform mapping to within a polarizing zone of the local fitting line, thus eliminating noisy votes on parameter space. A new line-drawing linking algorithm based on a hypothesis and verification strategy then operates on the recovered point sets of straight lines to establish a resulting construct. A major feature of our algorithm is that straight-line extraction and line-drawing linking are successfully associated to make the method work stably and reliably.
Author Keywords: Scene analysis; Polyhedra; Hough transform; Line fitting; Line-drawing extraction; Model-driven search; Hypothesis and verification
