| 金龙，张旭，章海波.基于高斯图的截面数据精确分段及重构[J].轻工机械,2016,34(1): |
| 基于高斯图的截面数据精确分段及重构 |
| Accurate Segmentation and Reconstruction of the Cross Section Data Based on Gauss Figure |
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| DOI：IO.3969/j.issn.1005-2895.2016.01.008 |
| 中文关键词: 反求工程 截面特征 高斯图 分段点 |
| 英文关键词:reverse engineering cross section feature Gauss figure segmentation point |
| 基金项目:国家自然科学基金资助项目( 51205246)；浙江省自然科学基金项目(Y1100073) |
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| 中文摘要: |
| 针对反求工程中截面重构时由于分段点提取不精确造成重构结果不理想的问题，提出一种分段点精确提取方
法。基于截面数据的法向量信息构建高斯图，将分段点确定在一个区间内，根据区间端点将截面数据分为不同的特征
段；优先重构直线特征，再根据约束重构自由特征，并在自由特征重构过程中建立动态搜索模型，用二次插值法动态搜索
精确分段点。实验表明该方法提高了分段点的提取精度和截面重构的精度，重构的结果很好地还原了产品模型的初始
设计意图。 |
| 英文摘要: |
| Due to poor segmentation of the cross section data , resulting in sectional curve reconstruction accuracy poor in
the process of reverse engineering, a accurate segmentation method of the cross section data was proposed. Built Gauss
figure through the vector information of the cross section data. determined the interval of segmentation points, and
divided the cross section data into different features by the regional end point; reconstructed the line first. then
reconstructed the free features based on constraint, dynamically search model was set up in the process of free feature
reconstruction. searched optimal points dynamically by using the quadratic interpolation method. Experiments show that
this method improves the precision of segmentation point extraction and the reconstruction precision of section. The
reconstruction result restore the initial design intent of the product model very well. |
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