OTLines: A Novel Line-Detection Algorithm without the Interference of Smooth Curves
We proposed an orientation transformation(OT) algorithm in this paper. OT maps the points in each edge chain into an orientation space and detects corners. With OT, the circular arcs are mapped to a series of oblique lines. After OT, line segments and arcs can be detected simultaneously by using PCA method. The proposed algorithm can avoid taking a smooth curve as many straight segments.
feature extraction line detection arc detection corner detection principal component analysis