NDLI: A fast image stitching algorithm in the endless hot rolling process

Content Provider	IEEE Xplore Digital Library
Author	JongSeok Lee NamWoong Kong JinWoo Yoo PooGyeon Park
Copyright Year	2011
Description	Author affiliation: Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Korea (JongSeok Lee; NamWoong Kong; JinWoo Yoo) \|\| Department of Electrical Engineering and the Division of Information Technology Convergence Engineering, Pohang University of Science and Technology (POSTECH), Korea (PooGyeon Park)
Abstract	Camber is one of the most important defects in the endless hot-rolling process, and can be defined as the longitudinal curvature of a slab or strip in the plan view. To obtain a value of the camber for a steel bar, the overall shape of a slab or strip is required. However, the strip is too long to capture overall image at once. In order to obtain precise information on the overall shape of the bar, two area-scan charge-coupled device (CCD) cameras to obtain partial bar images and the image stitching algorithm are needed. This paper proposes a fast algorithm to obtain the overall shape of a steel bar in the endless hot rolling process. The proposed algorithm reduces the computational complexity and the running time of the image stitching process by adaptively selecting the search region to find feature points in steel bar images. The algorithm consists of three parts: generating the feature points and descriptors of the selected regions of continuous images for the steel bar, choosing the overlapped region between the present image and the next image, and stitching the partial bar images after calibrating them. The proposed stitching algorithm based on adaptive selection of the search region improves the performance of the camber measurement system during the image stitching process.
Starting Page	1264
Ending Page	1268
File Size	1740972
Page Count	5
File Format	PDF
ISBN	9781457708350
ISSN	20937121
e-ISBN	9788993215038
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-26
Publisher Place	Korea (South)
Access Restriction	Subscribed
Rights Holder	ICROS
Subject Keyword	Industries Strips bar Shape image stitching endless hot-rolling process Cameras Feature extraction camber Sensors Steel
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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