基于分数阶微分的消除局部强反射的孔径测量方法

唐瑞尹; 王荃; 何鸿鲲; 胡连军

doi:doi:10.5768/jao201738.0503002

应用光学, 2017, 38 (5): 784, 网络出版: 2017-10-12

基于分数阶微分的消除局部强反射的孔径测量方法

Measurement of aperture based on fractional derivative for eliminating local strong reflection

论文大纲

唐瑞尹 ^*王荃何鸿鲲胡连军

作者单位

华北理工大学电气工程学院，河北唐山 063210

分数阶微分强反射面边缘检测孔径测量 fractional differential strong reflecting surface edge detection aperture measurement

摘要

针对视觉测量硬盘圆孔直径易受到圆孔周围高反光面强反射的影响而导致测量精度不高的问题，提出了一种基于分数阶微分的图像去噪声的处理方法。通过分数阶微分算法对相机采集的带有强反射、高反光的硬盘圆孔孔径图像进行处理，消除圆孔周围强反射表面等不相关信息对圆孔边缘提取带来的影响，通过实验分别与Prewitt、Soble、Laplacian算子进行比较，证明分数阶微分可有效减少所要分析的图像信息量，更好地增强圆孔边缘轮廓信息，可达到更好的视觉效果。对分数阶微分算法处理后的圆孔图像进行Canny边缘检测，提取出有效的圆孔边缘，利用最小二乘法对孔径边缘进行直径测量。实验结果表明: 该文算法与其他算法相比，在保证精确提取孔径边缘信息的基础上，对圆孔周围的强反射面进行了抑制，误差控制在0.05 mm左右，保证了测量精度。

Abstract

In order to solve the problem that the hole diameter of the hard disk is easy to be affected by the local strong reflection and the high reflective surface,a method for measuring the diameter of circular parts to removal the noise based on the fractional differential was presented.The fractional-order differential algorithm was used to process the images of the hard disk aperture images with strong reflection and high reflection, so as to eliminate the influence of irrelevant information in strong reflection surface around circular hole on the extraction of the edge of circular hole.Experiments were carried out to compare with the Prewitt, Soble and Laplacian operators.It is proved that the fractional differential can effectively reduce the amount of image information to be analyzed and achieve a better visual effect.Moreover the Canny edge detection was performed for the circular hole image after processed by fractional-order differential algorithm to extract the available circular hole edge.Finally, the least square method was used to measure the hole size.Experimental results show that,compared with other algorithms,in the case of accurately preserving the edge information of the round hole and effectively suppressing the surrounding noise ,the error can be controlled around 0.05 mm,and the the measurement accuracy is guaranteed.

参考文献

[1] Richard K,Jorg G,Gunther N.Adaptive optical 3D-measurement with structured light［J］.SPIE,1999,3824:169-178.

[2] Shinji U, Guy G.Separation of diffuse and sepecular components of surface reflection use of polarization and statistical analysis of images［J］.IEEE Transactions on Pattern Analysis and Machine Intelligence,2004,26(5):639-647.

[3] 张新明,沈兰荪.基于小波的同态滤波器用于图像对比度增强［J］.电子学报,2001,29(4):531-533.

Zhang Xinming, Shen Lansun. Image contrast en-hancement by wavelet based homomorphic filtering［J］. Acta Electronica Sinica, 2001,29(4):531-533.

[4] 陈辉.分数阶微分图像增强技术及在铜浮选监控系统中的应用［D］.长沙: 中南大学,2013.

Chen Hui.Fractional differential image enhancement technology and its application in copper flotation monitoring system［D］.Changsha:Central South University,2013.

[5] 周昌雄,陶文林,尚丽,等.分数阶微分算子增强图像边缘和纹理［J］.激光与红外,2013, 43(1):109-113.

Zhou Changxiong，Tao Wenlin，Shang Li.Fractional differential operator for enhancing edge and texture of image［J］.Laser&Infrared,2013,43(1):109-113.

[6] 张雪,肖旺新,吴坚,等.用二次B样条小波进行图像的自适应阈值边缘检测［J］.红外技术,2003,25(1):19-23.

Zhang Xue,Xiao Wangxin,Wu Jian,et al.Adaptive thresholds edge detection for image based on wavelet transform［J］.Infrared Technology,2003,25(1):19-23.

[7] 吕哲,王福利,常玉清.一种改进的Canny边缘检测算法［J］．东北大学学报:自然科学版，2007，28(12)；1681-1684.

Lyu Zhe,Wang Fuli,Chang Yuqing.An improved canny algorithm for edge detection［J］.Journal of Northeastern University:Natural Science,2007，28(12)；1681-1684.

[8] 许桢英,徐家祥,黄建斌,等.基于Halcon的电连接器壳体零件孔径快速精密测量［J］.制造业自动化,2015,37(11):31-33.

Xu Zhenying,Xu Jiaxiang,Huang Jianbin,et al.Fast precision measurement of the apertures of electric connector shell based on Halcon［J］.Manufacturing Automation,2015,37(11):31-33.

[9] 高俊钗,雷志勇.基于机器视觉的密封件直径测量技术研究［ J］.计算机测量与控制, 2005, 13(12):1320-1321.

Gao Junchai, Lei Zhiyong.Research on diameter detection technology of sealing based on machine vision［J］.Computer Measurement & Control,2005, 13(12):1320-1321.

[10] 熊鑫,孙冬梅,范文,等.光笔式双目视觉测量系统标定技术研究［J］.应用光学, 2015, 36(5):784-790.

Xiong Xin,Sun Dongmei,Fan Wen,et al.Calibration technique of binocular vision measurement system using light pen［J］ .Journal of Applied Optics,2015,36(5):784-790.

唐瑞尹, 王荃, 何鸿鲲, 胡连军. 基于分数阶微分的消除局部强反射的孔径测量方法[J]. 应用光学, 2017, 38(5): 784. Tang Ruiyin, Wang Quan, He Hongkun, Hu Lianjun. Measurement of aperture based on fractional derivative for eliminating local strong reflection[J]. Journal of Applied Optics, 2017, 38(5): 784.

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