提高基于CCD测量精度的新方法
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摘要
为了提高基于CCD测量系统的测量精度,对传统的基于CCD的测量方法和测量精度进行了研究。当CCD成像平面与被测物体成一夹角α时,导出空间距离与图像像素之间的非线性关系。提出了通过标定和校准来提高基于CCD测量精度的新方法。实际结果表明,该方法可满足对大尺寸物体的高精度测量。
For improving measurement accuracy of the measurement system based on CCD,the traditional measurement systems are analyzed.As the CCD imaging plane inclined an angle as α with the object to be measured,the nonlinear relation between the space distance and image pixel is turned up.By demarcating and calibrating,a new higher accuracy method is brought out.The result shows that the method can gain high accuracy for large-sized object measurement.
For improving measurement accuracy of the measurement system based on CCD,the traditional measurement systems are analyzed.As the CCD imaging plane inclined an angle as α with the object to be measured,the nonlinear relation between the space distance and image pixel is turned up.By demarcating and calibrating,a new higher accuracy method is brought out.The result shows that the method can gain high accuracy for large-sized object measurement.
引文
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[7]江育民,黄惟公,杨益.基于提高线阵CCD测量系统测量精度的研究[J].电子测量技术,2010,33(6):98—101.Jiang Y M,Huang W G,Yang Y.Research on the accuracy improve-ment of linear array CCD measuring system[J].Electronic MeasurementTechnology.2010,33(6):98—101.
[8]王和顺,陈华.一种提高CCD测量精度的新方法[J].四川大学学报(工程科学版),2001,33(5):63—65.Wang H S,Chen H.New method for high accuracy in CCD measure-ment[J].Journal of Sichuan University(Engineering Science Edition),2001,33(5):63—65.
[9]王和顺,陈次昌,黄惟公.提高CCD测量精度的方法研究[J].光电子.激光,2010,21(1):63—65.Wang H S,Chen C C,Huang W G.Research the method to improveCCD measurement accuracy[J].Journal of Optoelectronics.Laser,2010,21(1):63—65.
[10]王和顺,陈次昌,黄惟公.CCD测量误差的研究[J].光学技术,2009,35(3):402—405.Wang H S,Chen C C,Huang W G.Research on the error of CCD[J].Optical Technique,2009,35(3):402—405.
[11]金杰,徐锡林.提高CCD分辨力的一种尝试[J].现代计量测试,1997,5(3):37—41.Jin J,Xu X L.A New way to improve the resolution of CCD[J].Mod-ern Measurement and Test,1997,5(3):37—41.
[12]苏波,王纪龙,王云才.CCD高精度测径系统的研究[J].太原理工大学学报,2002,33(5):506—509.Su B,Wang J L,Wang Y C.Research on high accuracy diametermeasurement system with CCD[J].Journal of Taiyuan University ofTechnology,2002,33(5):506—509.
[13]张进秋,李帼,图像像素距离与空间距离变换公式的求解[J].软件导刊,2009,8(12):179—180.Zhang J Q,Li G.Solution of transform formula between image pixeldistance and space distance[J].Software Guide,2009,8(12):179—180.
[2]唐土生,陈绚青,徐强.温度对基于线阵CCD测长系统的影响[J].冶金自动化,2011,35(3):72—75.Tang T S,Chen X Q,Xu Q.Effect of temperature to CCD-based lengthmeasurement system[J].Metallurgical Industry Automation,2011,35(3):72—75.
[3]杨博雄.CCD细分技术及其应用研究[D].武汉:中国地震局地球物理研究所,2005.Yang B X.CCD subdivision technology and its application research[D].Wuhan:China Seismological Bureau Earth Physics Research Insti-tute,2005.
[4]刘丽,刘秉琦,武东生,等.一种校正CCD摄像系统非线性的新方法[J].微计算机信息,2006,22(7-1):160—161.Liu L,Liu B Q,Wu D S,et al.An approach to nonlinear emendationof CCD camera system[J].Micro Computer Information,2006,22(7-1):160—161.
[5]吴福田,冯书文.CCD尺寸测量光学系统设计原理[J].应用光学,1994,15(5):20—24.Wu F T,Feng S W.The design principle of an optical system for CCDsize measurement[J].Journal of Applied Optics,1994,15(5):20—24.
[6]王和顺,陈次昌,黄惟公.用低精度CCD获得高精度测量方法的研究[J].光学学报,2005,25(11):1488—1492.Wang H S,Chen C C,Huang W G.Research on the method of high ac-curacy measurement by use of low accuracy CCD[J].Acta Optica Sini-ca,2005,25(11):1488—1492.
[7]江育民,黄惟公,杨益.基于提高线阵CCD测量系统测量精度的研究[J].电子测量技术,2010,33(6):98—101.Jiang Y M,Huang W G,Yang Y.Research on the accuracy improve-ment of linear array CCD measuring system[J].Electronic MeasurementTechnology.2010,33(6):98—101.
[8]王和顺,陈华.一种提高CCD测量精度的新方法[J].四川大学学报(工程科学版),2001,33(5):63—65.Wang H S,Chen H.New method for high accuracy in CCD measure-ment[J].Journal of Sichuan University(Engineering Science Edition),2001,33(5):63—65.
[9]王和顺,陈次昌,黄惟公.提高CCD测量精度的方法研究[J].光电子.激光,2010,21(1):63—65.Wang H S,Chen C C,Huang W G.Research the method to improveCCD measurement accuracy[J].Journal of Optoelectronics.Laser,2010,21(1):63—65.
[10]王和顺,陈次昌,黄惟公.CCD测量误差的研究[J].光学技术,2009,35(3):402—405.Wang H S,Chen C C,Huang W G.Research on the error of CCD[J].Optical Technique,2009,35(3):402—405.
[11]金杰,徐锡林.提高CCD分辨力的一种尝试[J].现代计量测试,1997,5(3):37—41.Jin J,Xu X L.A New way to improve the resolution of CCD[J].Mod-ern Measurement and Test,1997,5(3):37—41.
[12]苏波,王纪龙,王云才.CCD高精度测径系统的研究[J].太原理工大学学报,2002,33(5):506—509.Su B,Wang J L,Wang Y C.Research on high accuracy diametermeasurement system with CCD[J].Journal of Taiyuan University ofTechnology,2002,33(5):506—509.
[13]张进秋,李帼,图像像素距离与空间距离变换公式的求解[J].软件导刊,2009,8(12):179—180.Zhang J Q,Li G.Solution of transform formula between image pixeldistance and space distance[J].Software Guide,2009,8(12):179—180.
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