On Reconstruction of Revolution
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摘要: 提出了一种新的旋转体三维重建方法。在该方法的实现过程中,首先利用旋转平台获取了旋转体的影像,然后基于物方的空间圆重建方法精确测量旋转体的上口,从而得到旋转体的旋转轴,再根据影像的方位元素对影像进行纠正,使得旋转体的轮廓线在影像上的成像左右对称,最后直接用纠正后的影像精确计算旋转体的形状。在理论上讲,利用一张影像就可以实现旋转体的三维重建,但在本文中使用了多张照片,主要是为了获取整个旋转体的纹理。对实际的旋转体进行三维重建,结果证明该方法是有效的。Abstract: In the process of reconstruction of textured 3D models of revolution from images,the precise 3D shape of the revolution must be obtained in advance.This can be done using computer vision technique and from symmetry property of potteries.The problem of recovering the 3D shape of a surface of revolution from images is addressed.The algorithm makes use of the symmetry properties of a surface of revolution and its silhouette to rectify the image such that the resulting silhouette exhibits bilateral symmetry.The revolution axis of the surface of revolution is calculated by image parameters and top circle of revolution.The rectified image is then used to recover the contour generator and the object is reconstructed.Experimental results on real images are presented,which demonstrate the effectiveness of the approach.
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Keywords:
- revolution /
- 3D reconstruction /
- meridian curve /
- latitude circle /
- contour
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