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An Online Visual Inspection System for Oil-Seal Dimension

机译：油封尺寸在线视觉检查系统

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Adoption of machine vision inspection and computer image processing technology, an oil-seal dimension measuring system was developed to meet the requirement of online production and real time inspection. The makeup and principle of the system were introduced, as well as its working process and design requirements were described on detailed. The technique of quadratic filtering for image preprocessing combined with the principle of three points determining a circle, point Hough transform and the least squares was employed for image processing algorithm, and high precision sub-pixel edge detection was achieved. The measuring results of experiments demonstrated that the inspection goal on 100 percents of products could be realized successfully, and with many advantages such as noncontact, on-line, real time, appropriate precision and low cost, the system can be applied widely in other production fields.
机译：采用机器视觉检查和计算机图像处理技术，开发了一种油封尺寸测量系统，以满足在线生产和实时检验的要求。介绍了系统的化妆和原理，以及其工作过程和设计要求。用于图像预处理的二次滤波的技术与确定圆的三个点的原理相结合，用于图像处理算法，实现了高精度子像素边缘检测。实验的测量结果表明，可以成功实现100个产品的检查目标，并且在不可接触的，在线，实时，适当的精度和低成本等许多优点，该系统可以广泛应用于其他生产字段。

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