中文摘要：

在反求工程中，所研究的重要内容是对待重构实体的质量分布的数据测量和利用软件对其进行实体重构。由于基于体素重构的实体轮廓是不光顺的，因此必须构造曲面对其进行光顺处理。本文阐述了一种根据三维规则体数据场的体素数据进行三维实体重构的方法。详细介绍了基于NUBRS即非均匀有理B样条理论的曲面蒙皮法构造曲面的具体步骤，然后用具体实例说明了光顺效果，最后对误差做了简要分析。

英文摘要：

Three-dimensional solid measurement and reconstruction is an important part in reverse engineering. This paper introduces a rule under the three-dimensional voxel data sets of data reconstruction method of three-dimensional solid. The use of cubic voxel reconstruction of the entity after the outline is a water chestnut and uneven. Therefore, reverse engineering, the last one process is right with the voxel reconstruction of the entity to smooth contours. This paper describes in detail based on NUBRS, is neither uniform rational B-spline method of constructing the theory of surface skin surface methodology steps and using a concrete example of a smooth effect, Finally, a brief analysis of the error.