Abstract
In 3D objects recovering, geometry features of 3D contour curves were analyzed, method of 3D contour curves matching based geometry features was presented. Contour curves of 3D objects were extracted and represented by B-spline. According to geometry features of 3D contour, curvatures and torsions of point on curves were calculated after filtering and smoothing contour curves. Eigenvectors of 3D contours were constructed by curvatures and torsions. Features of corresponding points on two contour curves were compared to judge similarity of contour. Matching relation of contour was determined between tow contour curves based on similarity between two contours. Fragments mosaicing were realized for recovering broken objects based on contour curves matching. Experimental results show that that this method has high speed, accuracy and validity.
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