| 基于ICT图像的工件壁厚和圆度误差测量 |
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| 引用本文： | 陈平生,邹斌. 基于ICT图像的工件壁厚和圆度误差测量[J]. 渝西学院学报(自然科学版), 2010, 0(2): 58-61,65 |
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| 作者姓名： | 陈平生 邹斌 |
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| 作者单位： | 绍兴托普信息职业技术学院; |
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| 摘 要： | 研究基于工业计算机断层成像技术（ICT）图像的工件壁厚和圆度误差测量方法．首先采用Facet模型对ICT图像进行边缘提取，其次采用Freeman链表法将边缘图像中待测壁厚的工件内外壁边缘或待测圆度误差的工件近似圆边缘跟踪出来，最后通过求取内壁链表各点到外壁链表各点的最小距离的平均值得到工件壁厚，或通过最小区域法求得工件圆度误差．通过对仿真和实际的ICT图像进行实验表明：该方法能够准确地求得ICT图像中工件截面的壁厚和圆度误差，特别适合测量工件中封闭内腔的壁厚和内孔的圆度误差．该方法可用于工件制造质量控制，也可用于逆向制造中工件几何尺寸的测量．
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| 关 键 词： | 逆向制造 工业计算机断层成像 壁厚 圆度 Facet模型 |
Wall thickness and roundness error measurements of workpieces based on ICT images |
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| CHEN Ping-sheng,ZOU Bin. Wall thickness and roundness error measurements of workpieces based on ICT images[J]. , 2010, 0(2): 58-61,65 |
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| Authors: | CHEN Ping-sheng ZOU Bin |
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| Affiliation: | CHEN Ping-sheng,ZOU Bin(TOP Vocational Institute of Information & Technology of Shaoxing,Shaoxing Zhejiang 312000,China) |
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| Abstract: | Methods for wall thickness and roundness error measurements of workpieces based on Industrial CT images(ICT) were studied.Firstly,Facet model was used for the ICT images edge detection.Next,both inside and outside edge of the wall in the workpieces edge image were tracked out with Freeman list method,the similar round edge of workpiece was also tracked out,then the minimum distances between each points in the inside wall list and each points in the outside wall list were calculated.Finally,the wall thicknes... |
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| Keywords: | inverse manufacturing industrial computed tomography wall thickness roundness Facet model |
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