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首页> 外文会议>International Measurement Confederation XVI IMEKO World Congress (IMEKO 2000) Vol.8, Sep 25-28, 2000, Vienna, Austria >AUTOMATIC INSPECTION OF DRILL-HOLES AND THREADS
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AUTOMATIC INSPECTION OF DRILL-HOLES AND THREADS

机译：钻孔和螺纹的自动检查

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摘要

Due to the cylindrical shape of drill-holes and inner threads the acquisition of high-resolution images has not yet been solved satisfactorily. Different possibilities for taking pictures from the inside of a drilled hole are reviewed and evaluated with respect to the quality of the images. Results show, that a ring-shaped CMOS-Sensor works best for the purpose of automatic inspection. Additionally, the analysis of these images requires a special algorithmic approach, which is able to take care of the cylindriai shape of the object To achieve this, the use of the Z-transformation is recommended for processing of such images, and it is shown to be superior to other image processing operators.
机译：由于钻孔的圆柱形形状和内螺纹，高分辨率图像的采集尚未令人满意。关于图像质量，对从钻孔内部拍摄照片的不同可能性进行了审查和评估。结果表明，环形CMOS传感器最适合用于自动检查。此外，对这些图像的分析需要一种特殊的算法方法，该方法能够处理对象的圆柱形状。为此，建议使用Z变换来处理此类图像，并显示为优于其他图像处理运营商。

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