A Method of Hole Center Positioning in Building Steel Plate Image

DOI

10.2991/icmce-14.2014.130How to use a DOI?

Keywords

Region of Interest, Sobel, Ellipse Best Fitting, Bundle Adjustment

Abstract

Detection technology research about the steel plate of high-rise buildings has practical application value in building survey. In order to obtain center positions of circular holes in steel plate, Close-range Photogrammetry with advantages of non-contact, high accuracy is employed. According to the coordinate of control points, regions of interest of holes in steel plate image are confirmed. Then the holes’ edge is detected by Sobel operator after binarization in respective regions of interest. Finally, the center coordinates of each hole are localized precisely by ellipse best fitting, and the space coordinates of holes are calculated by bundle adjustment. Test results show that the method can meet the requirement of accuracy.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xin LI
AU  - Mei-Xiu LIU
AU  - Xi LI
AU  - Fan-Tao ZENG
AU  - Xiao-Yu LU
AU  - Yuan-Fu GONG
PY  - 2014/12
DA  - 2014/12
TI  - A Method of Hole Center Positioning in Building Steel Plate Image
BT  - Proceedings of the 2014 International Conference on Mechanics and Civil Engineering
PB  - Atlantis Press
SP  - 742
EP  - 746
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmce-14.2014.130
DO  - 10.2991/icmce-14.2014.130
ID  - LI2014/12
ER  -