DETECTING LINEAR FEATURES BY SPATIAL POINT PROCESSES
- 1Institute of Spatial Information Technique, Zhejiang University, China
- 2Institute of Photogrammetry and GeoInformation, Leibniz Universit¨at Hannover, Germany
Keywords: Linear Feature, Feature Detection, Spatial Point Processes, Global Optimization, Simulated Annealing, Markov Chain Monte Carlo
Abstract. This paper proposes a novel approach for linear feature detection. The contribution is twofold: a novel model for spatial point processes and a new method for linear feature detection. It describes a linear feature as a string of points, represents all features in an image as a configuration of a spatial point process, and formulates feature detection as finding the optimal configuration of a spatial point process. Further, a prior term is proposed to favor straight linear configurations, and a data term is constructed to superpose the points on linear features. The proposed approach extracts straight linear features in a global framework. The paper reports ongoing work. As demonstrated in preliminary experiments, globally optimal linear features can be detected.