3D Reconstruction Method of Bent Tube with NURBS Curve

Tian Zhang; Jian Hua Liu; Cheng Tong Tang; Shao Li Liu

doi:10.4028/www.scientific.net/AMM.300-301.112

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 300-3013D Reconstruction Method of Bent Tube with NURBS...

3D Reconstruction Method of Bent Tube with NURBS Curve

Abstract:

To solve the difficulty and low efficiency of three-dimensional reconstruction of complex spatial form bent tube, a stereo vision method with NURBS curve to achieve three-dimensional reconstruction of bent tube is presented. This method first extracts central axis and the edge line of bent tube by the grayscale image, and the outer diameter of bent tube is calculated through the edge line extracted. On the premise of affine camera model, NURBS curve has been chosen as the primitive of reconstruction, and by using its affine invariance, according to the principle of binocular vision, the central axis of bent tube is reconstructed through reconstructing the control points. Finally, the three-dimensional model of bent tube is reconstructed by three-dimensional modeling technique. Experimental results show that, relative to the traditional methods, this method makes a big improvement on the efficiency and accuracy of three-dimensional reconstruction of bent tube.

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Periodical:

Applied Mechanics and Materials (Volumes 300-301)

Pages:

112-118

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.300-301.112

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Online since:

February 2013

Authors:

Tian Zhang, Jian Hua Liu, Cheng Tong Tang, Shao Li Liu

Keywords:

Bent Tube, NURBS Curve, Stereo Vision, Three-Dimensional Reconstruction

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