title: Measuring straight line segments using HT butterflies.
abstract: This paper addresses the features of Hough Transform (HT) butterflies suitable for image-based segment detection and measurement. The full segment parameters such as the position, slope, width, length, continuity, and uniformity are related to the features of the HT butterflies. Mathematical analysis and experimental data are presented in order to demonstrate and build the relationship between the measurements of segments and the features of HT butterflies. An effective method is subsequently proposed to employ these relationships in order to discover the parameters of segments. Power line inspection is considered as an application of the proposed method. The application demonstrates that the proposed method is effective for power line inspection, especially for corner detection when they cross poles.
authors.affiliation: Department of Electrical and Mining Engineering, University of South Africa, Florida, South Africa. dushengzhi@gmail.com
authors.forename: Shengzhi
authors.initials: S
authors.lastname: Du
authors.forename: Chunling
authors.initials: C
authors.lastname: Tu
authors.forename: Barend J
authors.initials: BJ
authors.lastname: van Wyk
authors.forename: Elisha Oketch
authors.initials: EO
authors.lastname: Ochola
authors.forename: Zengqiang
authors.initials: Z
authors.lastname: Chen
mesh_terms: D000465:Algorithms; D008962:Models, Theoretical; D010363:Pattern Recognition, Automated / Q000379:methods*