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Camera orientation and 3D-deformation measurement by use of cross gratings
The orientation of stereo cameras in a close range environment is derived by a modified bundle block adjustment, using the cross coordinates of a shifted high quality grating. By means of the HOUGH-transform, approximate grating coordinates are determined, which are used to calculate the final coord...
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Published in: | Optics and lasers in engineering 1995, Vol.22 (3), p.215-226 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The orientation of stereo cameras in a close range environment is derived by a modified bundle block adjustment, using the cross coordinates of a shifted high quality grating. By means of the HOUGH-transform, approximate grating coordinates are determined, which are used to calculate the final coordinates fully automatically with a correlation filter technique. The stereo setup is applied to measure the
3D-deformation on the surface of a cold welded
CuAl tension specimen supplied with a titanium dioxide cross grating. |
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ISSN: | 0143-8166 1873-0302 |
DOI: | 10.1016/0143-8166(94)00047-E |