Passive visual system-based molten pool edge extraction method
A passive vision and edge extraction technology, applied in image data processing, instrumentation, computing, etc., can solve problems such as inability to accurately extract the edge of the molten pool
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[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below.
[0040] A kind of melting pool edge extraction method based on passive vision system of the present invention, specifically its specific operation steps are:
[0041] 1) Model the regions and edges of the melt pool image separately. When modeling image regions, see figure 1 , figure 2 , where 11 is solder splash, 12 is edge of molten pool, 13 is molten pool, and 14 is arc light. Divide the image region into interior regions p in (x) and the outer region p out (x), combined with its grayscale histogram features, to model the inner and outer regions as a Gaussian mixture model:
[0042] p ( x ) = Σ i = 1 N π i ...
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