基于辐射标定的机械零件精密测量方法研究
Research on Precision Measurement of Machine Part Based on Radiometric Calibration

作者: 毕德学 * , 李相旭 :天津科技大学机械工程学院; 刘咏梅 :北京出入境检验检疫局;

关键词: 机器视觉辐射标定响应函数非接触测量Machine Vision Radiometric Calibration Response Function Non-Contact Measurement

摘要:
提出了一种基于辐射标定的机械零件精密测量方法。通过辐射标定求出摄像机CCD传感器的响应函数,建立图像灰度值与传感器收集的辐射能量之间非线性映射关系,恢复了图像中机械零件的真实场景,使机械零件的边缘轮廓更加接近实际。实验表明,该方法有效地提高了机器视觉的测量精度,在机械零件非接触测量领域具有重要的意义。

Abstract:
In this paper, a precision measurement method of machine part based on radiometric calibration was proposed. According to radiometric calibration, the response function of our camera’s CCD sensor was obtained, and the non-linear mapping relations between image gray value and the radiant energy of machine part were established. Based on this, the real size of machine part in image was restored. The experiments showed that this method can effectively improve the measurement accuracy, and it would be of great importance in non-contact measurement field of machine part.

文章引用: 毕德学 , 李相旭 , 刘咏梅 (2013) 基于辐射标定的机械零件精密测量方法研究。 计算机科学与应用, 3, 216-221. doi: 10.12677/CSA.2013.34037

参考文献

[1] 冈萨雷斯. 数字图像处理(第三版)[M]. 北京: 电子工业出版社, 2011: 26-29.

[2] 祁晓玲, 赵霞霞, 靳武银. 基于机器视觉的轴类零件几何尺寸测量[J]. 组合机床与自动化加工技术, 2013, 1: 65-67.

[3] 高飞, 辛镝, 石米娜, 谭庆昌. 基于机器视觉的机械零件自动精密测量[J]. 试验技术与试验机, 2006, 46(6): 28-31.

[4] 贺振兴. 基于机器视觉的精密锡膏印刷设备精度研究[D]. 华南理工大学, 2012.

[5] 罗钧, 黄俊. 基于机器视觉的二维小尺寸精密测量系统[J]. 计算机测量与控制, 2007, 15(1): 11-13.

[6] C. Steger, M. Ulrich and C. Wiedeman. 机器视觉算法与应用[M]. 北京: 清华大学出版社, 2008: 101-111.

[7] S. Lin, J. Gu, Shuntaro, S. Yamazaki and H. Shum. Radiometric calibration from a single image. IEEE Computer Society Conference on Computer Vision and Pattern Recognition, Washington DC, 27 June-2 July 2004, 938-945.

[8] 董敏, 朱虹, 邢楠, 赵朝杰. 核密度估计的单幅图像相机响应逆函数求解方法[J]. 计算机工程与应用, 2012, 48(10): 177- 174.

[9] S. Mann, R. Mann. Quantigraphic imaging: Estimating the camera response and exposures from differently exposed images. Proceedings of the 2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 8-14 December 2001, 842-849.

[10] S. Mann. Comparametric equations with practical applications in quantigraphic image processing. IEEE Transactions on Image Processing, 2000, 9(8): 1389-1406.

[11] 张广军. 机器视觉[M]. 北京: 科学出版社, 2005: 84-87.

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