| 基于改进型傅氏变换轮廓术检测螺纹钢肋径 |
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| 引用本文： | 吕银环,王汝笠,吴航行,雷存栋.基于改进型傅氏变换轮廓术检测螺纹钢肋径[J].光学技术,2004,30(3):299-302. |
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| 作者姓名： | 吕银环 王汝笠 吴航行 雷存栋 |
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| 作者单位： | 中国科学院上海技术物理研究所,上海,200083;中国科学院上海技术物理研究所,上海,200083;中国科学院上海技术物理研究所,上海,200083;中国科学院上海技术物理研究所,上海,200083 |
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| 摘 要： | 采用改进型傅氏变换轮廓(I FTP)术,提出了一种实用化的非接触式三维测量系统。通过计算机建模仿真,证明了该技术用于三维测量的可行性。采用了一种局部滤波的方法,通过滤波修正测量结果,使得测量精度明显提高。利用该系统对螺纹钢肋径进行实际测量,获得了良好的实验结果,经与实际值对比,并进行误差分析,验证了该系统具有实用价值和开发前景。
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| 关 键 词： | 改进型傅氏变换轮廓术 余弦光栅 半周期相移 变形光栅模式 |
| 文章编号： | 1002-1582(2004)03-0299-04 |
| 修稿时间： | 2003年9月1日 |
Measurement for the rib diameter of thread steel based on the improved Fourier transform profilometry |
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| LU Yin-huan,WANG Ru-li,WU Hang-xing,LEI Cun-dong.Measurement for the rib diameter of thread steel based on the improved Fourier transform profilometry[J].Optical Technique,2004,30(3):299-302. |
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| Authors: | LU Yin-huan WANG Ru-li WU Hang-xing LEI Cun-dong |
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| Abstract: | A practicality non-touch 3D measurement system based on the improved Fourier transform profilometry is proposed. Its feasibility is verified by the computer modeling simulation. A kind of part filtering algorithm is used for modifying the metrical result and make the metrical precision improved clearly. The rib diameters of thread steel are measured practically by this system and the good results are obtained. The results are compared with the truth values and the error analysis is given. So the practicable merit and developable future are validated. |
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| Keywords: | improved Fourier transform profilometry cosine grating pi-shifting deformed grating pattern |
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