Automatic detection of circular defects during ultrasonic inspection

摘要: In the non-destructive testing of materials, use imagery allows for more than only a qualitative representation results. Imagery can aid in automatically carrying out operations detection, location and sizing defects present structure. The rapidity calculators their graphic performance allow us to classical tools image processing today, even though they require large number calculations. This work consists applying Hough transform detect inclusions material by analyzing an ultrasonic c-scan image. first step, this is binarized using −6dB method, which reduces real sizes. then applied edges circular forms that characterize inclusions.