The Multiscale Line Segment Detector

Yohann Salaün (1) , Renaud Marlet (2, 3, 4) , Pascal Monasse (4, 3, 2)

1 CentraleSupélec
2 imagine [Marne-la-Vallée]
3 LIGM - Laboratoire d'Informatique Gaspard-Monge
4 ENPC - École des Ponts ParisTech

We propose a multiscale extension of a well-known line segment detector, LSD. We show that its multiscale nature makes it much less susceptible to over-segmentation and more robust to low contrast and less sensitive to noise, while keeping the parameter-less advantage of LSD and still being fast. We also present here a dense gradient filter that disregards regions in which lines are likely to be irrelevant. As it reduces line mismatches, this filter improves the robustness of the application to structure-from-motion. It also yields a faster detection.

Domaines: Vision par ordinateur et reconnaissance de formes [cs.CV]

Yohann Salaün, Renaud Marlet, Pascal Monasse. The Multiscale Line Segment Detector. 1st Workshop on Reproducible Research in Pattern Recognition, Dec 2016, Cancun, Mexico. pp.167 - 178, ⟨10.1007/978-3-319-56414-2_12⟩. ⟨hal-01571615⟩