| 集群计算环境下的三维表面重建 |
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| 引用本文： | 王静,贾云得,安路平. 集群计算环境下的三维表面重建[J]. 计算机辅助设计与图形学学报, 2005, 17(5): 895-901 |
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| 作者姓名： | 王静 贾云得 安路平 |
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| 作者单位： | 北京理工大学计算机科学与工程系,北京,100081;北京理工大学计算机科学与工程系,北京,100081;北京理工大学计算机科学与工程系,北京,100081 |
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| 基金项目： | 国家自然科学基金 (K60 0 75 0 0 5 ) |
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| 摘 要： | 讨论了一种在集群计算环境下将物体各个方向的表面片拼接起来形成物体完整表面的算法．通过采样计算出体素到每个表面片的最近距离，利用添加策略计算出每个体素的权重距离，再利用行进块算法抽取出物体表面．实验结果表明，该算法在普通的PC集群上并行计算，可以大大减少建模的时间，特别是在大数据量时，加速的效果更加明显。
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| 关 键 词： | 3D表面重建 表面拼接 并行计算 集群计算 |
Parallel Computation of 3D Shape Reconstruction under PC's Cluster |
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| Wang Jing,Jia Yunde,An Luping. Parallel Computation of 3D Shape Reconstruction under PC's Cluster[J]. Journal of Computer-Aided Design & Computer Graphics, 2005, 17(5): 895-901 |
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| Authors: | Wang Jing Jia Yunde An Luping |
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| Abstract: | A volumetric view-merging algorithm to generate a consensus surface of an object from its range images under PC cluster is presented. After resampling the range surface, the signed distance for updating the voxel is computed. Then, the signed distance is combined with the data of voxel already acquired using a simple additive scheme. The surface mesh is extracted using the marching cube algorithm. Computation time for 1,2,4,8 PCs in parallel are recorded at two levels of shape approximation precision. The acceleration rate is nearly linear. |
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| Keywords: | 3D shape reconstruction surface merging parallel computing cluster computing |
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