Recognizing geometric primitives in 3D point clouds of mechanical CAD objects

Instant Segmentation and Fitting of Excavations in Subsurface Utility Engineering

“…A Hough transform is commonly used for shape detection [36,61] in 2D images, but was also extended to 3D. Planes, cylindrical shapes [40] and other primitives [41] can be used in a Hough transform. Kurdi et al [55] found that RANSAC generally outperforms Hough-based alignment on 3D scans.…”