范文编号:DZXX073 范文字数:12818,页数:39 摘要 工业CT图像直接三维重建是近年来工业CT技术研究的前沿领域,医学图像数据的三维重建和手术模拟是当今科学计算可视化的一个研究热点。计算机三维绘制技术通常研究简单原始几何型体的显示,更加复杂的结构可以通过这些简单结构的组合来获得,然而,这种方式不能表达离散数据描述的曲面。为了从三维数据场中提取物体表面信息,William E.Lorensen和Harvey E.Cline设计了MC算法。三维重构的应用越来越广泛,而面重构过程中问题的解决直接影响到三维实体的精度。本文按照几何中心及轮廓线搭接面积进行匹配和多轮廓线的面积比率将多分支转化若干个单分支来解决分支问题,从而提高了重构质量、简化了重构算法、节约了时间和成本。 关键词:三维重构,MC算法,CT图像 ABSTRACT Industrial direct three-dimensional reconstruction of CT images in recent years, CT technology industry cutting-edge field of research, medical image data of the three-dimensional reconstruction and surgical simulation is the visualization in scientific computing a research hotspot. MC algorithm is actually the basic principle of the space divided into a series of cubes. Algorithm for each mobile in the three-dimensional data cube farm, and the apex of the cube to determine the surface and the equivalent comparison, the number of polygons used to replace the right cube, all polygons will be generated by the formation of many surface contour, which is on the input surface Approximate expression data. The increasing application of three-dimensional reconstruction of extensive facial reconstruction process and issue a direct impact on the accuracy of three-dimensional entities. In this paper, in accordance with the geometric center and a lap area of contour matching and multi-contour the area ratio of the multi-branch into a number of branches of a single branch to resolve the issue, thereby enhancing the quality of the reconstruction and simplifies the reconstruction algorithm, the time and cost savings。 摘要 I
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