Good resolutions for Hough Transform

Author

Tu, Chunling ; Djouani, Karim ; Van Wyk, Barend Jacobus ; Hamam, Yskandar ; Du, Shengzhi

Author_Institution

French South Africa Inst. of Technol. (F´´SATI), Tshwane Univ. of Technol., Pretoria, South Africa

fYear

2012

fDate

6-8 July 2012

Firstpage

4916

Lastpage

4920

Abstract

This paper demonstrates the relationship between detection errors and resolutions (ρ- and θ- directions) when the Hough Transform (HT) is employed to detect straight segments in images. The inflexion of the error-resolution curve was uncovered. To comprehensively study the location of the inflexion, the effects of several factors are considered, such as the positions (ρ and θ), widths and lengths of straight segments, noise level, and the ratio of resolutions. An error surface according to ρ- and θ- resolutions is obtained in the paper to guide seeking of the best resolutions. The area containing “good” resolution settings is uncovered and modelled.

Keywords

Hough transforms; curve fitting; error detection; image resolution; image segmentation; θ- resolution; ρ-resolution; Hough transform; error detection; error surface; error-resolution curve; image segmentation; inflexion; noise level; Accuracy; Belts; Educational institutions; Image resolution; Image segmentation; Quantization; Transforms; Hough Transform; Resolutions; Straight Line Detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation (WCICA), 2012 10th World Congress on

Conference_Location

Beijing

Print_ISBN

978-1-4673-1397-1

Type

conf

DOI

10.1109/WCICA.2012.6359409

Filename

6359409