| 不规则形体表面点三维重建方法 |
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| 引用本文： | 王佳生,苏莉莉,唐好选.不规则形体表面点三维重建方法[J].东北林业大学学报,2008,36(8). |
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| 作者姓名： | 王佳生 苏莉莉 唐好选 |
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| 作者单位： | 1. 哈尔滨工程大学,哈尔滨,150001
2. 哈尔滨工业大学 |
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| 摘 要： | 为实现形体的快速三维重建,在分析现有各类重建算法的基础上,针对不规则形体给出了一种三维表面点的重建方法。首先进行摄像机自定标,求取相机的内、外参数,然后对采集的图像进行处理,得到物体的轮廓,最后使用地毯式的搜索算法搜索并重建了物体的表面点。分析了不同搜索步长情况下算法的执行效率,在综合考虑逼真度和执行速度的情况下,给出了优化的步长选择,为表面的三角网格化和纹理恢复提供了依据。
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| 关 键 词： | 不规则形体 三维重建 摄像机自定标 表面点 |
3D Surface Point Reconstruction of Irregular Object |
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| Wang Jiasheng,Su Lili,Tang Haoxuan.3D Surface Point Reconstruction of Irregular Object[J].Journal of Northeast Forestry University,2008,36(8). |
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| Authors: | Wang Jiasheng Su Lili Tang Haoxuan |
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| Abstract: | A three dimensional surface-point reconstruction method suitable for irregular object is given on the basis of analyzing the current image-based 3D reconstruction methods in order to realize fast modeling of objects.Firstly,realize the camera self-calibration and get the intrinsic and extrinsic parameters of the camera.Secondly,the contour of objects is calculated by collected image processing.Finally,the carpet-search algorithm is used to search and reconstruct the surface points of objects.The effect of this algorithm at different search steps was analyzed and an optimal step-selection was given by comprehensive consideration of fidelity and execution speed,which provide some bases for triangle-grid and texture recovery of the surface. |
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| Keywords: | Irregular objects 3D reconstruction Camera self-calibration Surface points |
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