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Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Feedback model of a flatness control system. Figure Legend: From: Real-time flatness.

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Presentation on theme: "Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Feedback model of a flatness control system. Figure Legend: From: Real-time flatness."— Presentation transcript:

1 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Feedback model of a flatness control system. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

2 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Longitudinal fibers of a steel strip: (a) Strip without irregularities during rolling, (b) theoretical defects, and (c) real flatness defects. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

3 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Common steel strip flatness defects: (a) Bad leveling, (b) wavy edges, and (c) center buckle. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

4 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Computation of flatness indices and flatness profiles. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

5 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Flatness profiles computed from a steel strip during manufacturing: (a) Bad leveling, (b) wavy edges, and (c) center buckle and wavy edges. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

6 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Flatness map computed from a steel strip during manufacturing. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

7 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Flatness inspection system layout. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

8 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Images acquired by the camera of the proposed flatness inspection system: (a) Laser stripe projected in the background of the scene, (b) laser stripe projected onto the uneven surface of a rolled product showing laser degradation, and (c) laser stripe projected onto the surface of a rolled product showing spurious noise in the image. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

9 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Laser peak detection: (a) Luminance of different laser profiles and (b) proposed laser peak detection method. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

10 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Laser stripe extraction: (a) Laser stripe projected onto a rolled product with the areas used in local and global search, (b) laser peak detection onto the surface of a rolled product, (c) laser peak linking using Akima splines, and (d) laser stripe extracted from the surface of a rolled product. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

11 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Set of images used for computing intrinsic parameters of the camera of the proposed flatness inspection system. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

12 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Example of an image used for computing extrinsic parameters of the camera of the proposed flatness inspection system. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

13 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Flatness profile computation: (a) Intraframe processing stage and (b) interframe processing stage. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

14 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Approximation of the length of a rolled product fiber. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

15 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Tuning of the laser stripe extraction method: (a) Flatness inspection system under working conditions, (b) video recording service for registration of real manufacturing conditions, and (c) offline tuning of the laser stripe extraction method using real manufacturing conditions. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987

16 Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Factors and metrics considered in multimedia container and compression algorithm performance evaluation experiments. Figure Legend: From: Real-time flatness inspection of rolled products based on optical laser triangulation and three-dimensional surface reconstruction J. Electron. Imaging. 2010;19(3):031206-031206-14. doi:10.1117/1.3455987


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