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《Optical Technique》 2018-05
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Measurement of optical fiber geometric parameters with Canny operator and binaryzation filtering

LI Yiming;TU Jiankun;XIANG Huazhong;JIANG Bin;WANG Cheng;ZHENG Gang;School of Medical Instrument and Food Engineering,University of Shanghai for Science and Technology;Shanghai Cable Research Institute;  
The geometric parameter of optical fiber is an important index for evaluating optical fiber's quality.Optical fiber geometry parameter measurement based on near-field light distribution method is a high-speed non-contact measurement.During the measurement,if the lighting source is fluctuating or the optical fiber end face is not smooth,large measurement errors will be taken place when the edge fitting or grayscale binarization is taken to measure.The edge of the optical fiber end surface is used as the limiting condition for the region binarization,and the geometry parameters of optical fiber were obtained by morphological processing and operation.The integral effect of the equivalent area is used to eliminate the error effects due to the uneven illumination or the roughness of the cut.
【Fund】: 国家自然科学基金青年科学基金(61605114)
【CateGory Index】: TN253
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