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The application of recognition for the weld seam and its initial position in a complicated environment based on the image pattern match technology has been discussed. According to adopting the two-step pattern match method, the recognition speed and accuracy have been improved, and the error points have been wiped off during the global pattern match stage by using the area analysis method. The initial position can be accurately recognized by using the method that dynamically adjusts the search area during the local pattern match stage in the area that is near the end of the weld. The results of the experiments prove that this method not only has the characters that include anti-jamming, fast running speed and high recognition, but also has a preferably practical value.
The International Journal of Advanced Manufacturing Technology – Springer Journals
Published: Oct 1, 2005
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