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西安交通大学 机械制造系统工程国家重点实验室,陕西 西安,710049
收稿日期:2006-12-17,
修回日期:2007-01-12,
网络出版日期:2007-06-30,
纸质出版日期:2007-06-30
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王权岱, 段玉岗, 丁玉成, 等. 压印对正系统中标记图像几何畸变的校正[J]. 光学精密工程, 2007,15(3):422-427.
WANG Quan-dai, DUAN Yu-gang, DING Yu-cheng, et al. Mark image geometric distortion calibration in alignment system for multilevel imprint lithography[J]. Optics and precision engineering, 2007, 15(3): 422-427.
在综合分析了多种线性及非线性畸变后
建立了三次多项式图像系统畸变模型。采用基于控制点偏差目标函数最小优化法进行畸变模型的求解
并通过计算自标定偏差均方差与互标定偏差均方差对标定结果进行了评定。结果表明
模型求解误差为0.22 μm
通过校正标记图像几何畸变引入的定位误差由2.5 μm降低到0.25 μm
可实现压印对正系统中标记图像几何畸变的校正
实现精确定位。
A distortion model based on cubic polynomial is established concerning various linear and nonlinear distortions in the alignment system based on video image for multi-level imprint lithography and a calibration technique based on controlled points is adopted to solve the model. By minimizing the error object function
the indeterminate coefficients of the distortion model are obtained. The calibration results are evaluated by the standard deviation of calibration error
and the results show that the fitting error is 0.22 μm. By introducing distortion correction based on this model
the alignment error due to image geometric distortion in the alignment system is reduced from 2.5 μm to 0.25 μm
which meets the requirement of precise positioning of alignment marks.
. 王权岱,段玉岗,卢秉恒,等. MEMS多层压印工艺中的视频图像对准系统[J]. 光电工程,2005,32(10):84-88. WANG Q D, DUAN Y G, LU B H, et al..Alignment system based on video images for MEMS multi-layer imprint fabrication process[J]. Opto-Electron. Eng., 2005,32(10):84-88.(in Chinese)
. 于起峰,陆宏伟,刘肖琳.基于图像的精密测量与运动测量[M]. 北京:科学出版社,2002. YU Q F, LU H W, LIU X L.Accurate Measurement and Motion Detection Based on Image[M].Beijing:Science Press,2002. (in Chinese)
. 王向军,韩双来. 弹落点坐标测量系统的快速校准方法及精度分析[J]. 光学 精密工程,2005,13(6):686-690. WANG X J,HAN SH L. A high speed camera calibration method in coordinate measurement of bomb-fall and its precision analysis[J]. Opt. Precision Eng.,2005,13(6):686-690.(in Chinese)
. TSAI R Y.A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV camera and lenses[J]. IEEE J. Robot. Autom., RA-3(4), 1987:323-344.
. SHIH S W, HUNG Y P, LIN W S. When should we consider lens distortion in camera calibration[J]. Pattern Recogn., 1995, 28(3):447-461.
. WONG K Y K, MENDONCA P R S, CIPOLLA R. Camera calibration from surfaces of revolution[J]. IEEE Trans. Pattern Anal. Mach. Intell., 2003, 25(2):147-161.
. ZHU J G,LI Y J,YE SH H. Calibration of line structured light vision system based on camera's projective center[J].Opt. Precision Eng.,2005,13(5):584-591.
. 史泽林,康娇,孙锐. 基于BP神经网络的大视场成像畸变校正方法[J]. 光学 精密工程,2005,13(3):348-353. SHI Z L, KANG J, SUN R.BP NN-based method for lens distortion correction of large-field imaging[J]. Opt. Precision Eng., 2005, 13(3):348-353.(in Chinese)
. WENG J Y, COHEN P, HERNIOU M. Camera calibration with distortion models and accuracy evaluation[J]. IEEE Trans. Pattern Anal. Mach. Intell., 1992, 14(10):965-980.
. BACAKOGLU H, KAMEL M S. A three-step camera calibration method . IEEE Trans. Instrum. Meas., 1997, 46(5):1165-1172.
. 吴晓波,安文斗,杨钢. 图像测量系统中的误差分析及提高测量精度的途径[J]. 光学 精密工程,1997,5(1):133-141. WU X B, AN W D, YANG G.Error analysis and approaches of improving measuring precision in image measuring system[J]. Opt. Precision Eng., 1997, 5(1):133-141.(in Chinese)
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