Application of inertia ellipse in code marker matching |
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Authors: | Fang Xu Weiwei Jiang Qing He Xiaobin Hu |
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Institution: | (1) Institute of Photogrammetry and GeoInformation, Leibniz University Hannover, Hannover, Germany; |
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Abstract: | In close-range photogrammetry, 3D information acquisition is based on image matching. The application of code marker helps
to improve the level of automatic matching and the matching accuracy. This paper investigates the application of inertia ellipse
algorithm to code marker matching. We can calculate the inertia ellipse of a target with a certain boundary. First, the method
is applied to a single code marker; the angle and scaling are valid. Then, the paper introduces the multi code markers matching
method by the inertia ellipse. Rotation and scaling changes of homonymy images can be calculated by inertia ellipse algorithm.
These parameters can be used for code marker matching in arbitrary attitude close-range photogrammetry. |
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Keywords: | |
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