Fig. 23
From: A variant of the Hough Transform for the combined detection of corners, segments, and polylines
Ratio between NS c (number of detected segments matching the ground truth data) and NS d (total number of detected segments) for the whole dataset considering d S =3 (distance between ground truth and detected line segments). Higher values of this ratio can be observed in most of the test images for the proposed method when comparing with the other two approaches. This indicates a better performance of HT3D in relation to LSD and PPHT. In addition, the low values associated to PPHT are indicative of a high number of false detections