Taught data setting method in a visual sensor system

Details Taught data setting method in a visual sensor system Taught data setting method in a visual sensor system

1993-07-14

1996-10-15

Couso, Jose L.

Image analysis

Learning systems

382141, G06K 962

Patent

active

055662471

ABSTRACT:
A taught data setting method in a visual sensor system, capable of automatically and rapidly setting optimum taught data. An image of a single circular sample is subject to image processing to determine formal setting values of first to sixth parameters (P1-P6), respectively corresponding to circle diameter, circumference, area and deformation degree, and types of a smoother filter and an emphasizing filter. Many sample images are then subject to image processing which utilizes the formal setting values, to thereby determine set center positions of the respective images. An optimum value of the first parameter enough to minimize the sum of the squares of the errors between the set center positions and image center positions is automatically determined (100), the image center positions being detected while the first parameter is changed, with the second to fourth parameters kept fixed at their formal setting values. Similarly, optimum values of the second to fourth parameters are determined (100-103). Image processing is further performed while changing filter types and keeping the first to fourth parameters fixed at their optimum values, thereby determining optimum values of the fifth and sixth parameters (108,109).

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