Intelligent splicing and positioning control method and system for ceramic and wooden components

Abstract

The application relates to the technical field of industrial component splicing, and discloses an intelligent splicing and positioning control method and system for ceramic and wooden components, which constructs a mapping relationship between a splicing direction coordinate and time by establishing a pixel relationship and a tape running speed, generates a splicing master graph, extracts a splicing seam of the master graph and calculates a structure tensor, obtains a condition number, a main direction angle and a tangent angle, constructs a scalar along the splicing direction and calculates a second-order curvature average, generates a monotone decreasing target weight based on an absolute value of a second-order derivative, performs weighted minimization on a splicing transformation residual error to reevaluate the splicing transformation, extracts a sub-pixel edge along a normal direction of the splicing seam, obtains an actual seam width by combining the pixel relationship, and compensates by using a sensitivity coefficient and a second-order derivative; the difference between the compensated seam width and a target seam width is taken as a control error, proportional integral image servo control is adopted, and a second-order curvature feedforward is introduced, so that high-precision intelligent splicing and positioning of the ceramic and wooden components are realized.

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