The automated surface inspection system for hot slab

Author

ChangHyun Park ; HoMoon Bae ; JongPil Yun ; SungWok Yun

Author_Institution

Eng. Res. Center, POSCO, Pohang, South Korea

fYear

2013

fDate

20-23 Oct. 2013

Firstpage

1733

Lastpage

1735

Abstract

The inspection for hot slab is an important issue to quality operators in steel industry. This paper introduces the automated inspection system for hot slab using interlaced lighting technology. We extract the depth information from surface images so that it make easier to overcome the unclear and noisy backgrounds and detect defects. The test results show 100% and 86% for crack and corner burst defects respectively. The false detection rate is less than 0.1% for each defect. The results imply that the proposed inspection system is very effective and promising method for inspecting hot slab.

Keywords

computer vision; cracks; inspection; production engineering computing; quality control; slabs; steel industry; automated inspection system; automated surface inspection system; corner burst defect; crack defect; defect detection; false detection rate; hot slab inspection; interlaced lighting technology; quality operators; steel industry; vision-based inspection system; Lighting; Slabs; CCD; crack; defect; illumination; interlaced; surface inspection;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems (ICCAS), 2013 13th International Conference on

Conference_Location

Gwangju

ISSN

2093-7121

Print_ISBN

978-89-93215-05-2

Type

conf

DOI

10.1109/ICCAS.2013.6704216

Filename

6704216