ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A fully automatic and rather flexible mobile vision 3D coordinate online measurementsystem is presented and analyzed. The system is composed of a high resolution CCD camera,retro-reflective feature points, and an external orientation device. The feature points, which fixed onthe measured object and external orientation device, are imaged by camera in several locations andorientations. The initial external locations and orientations of the camera relative to the fixed externalorientation device are determined by pose estimate algorithm, and the feature points coordinates, i.e.measured points coordinates on the object, are calculated by bundle adjustment algorithm based oncollinear constraint. To improve the measurement accuracy, the locations of the imaging featurepoints are determined by bilinear centroid sub-pixel algorithm. The effectiveness of the proposedsystem has been tested by experiments
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.381-382.87.pdf
Permalink