Method for detecting adhesion penetration of corrugated board based on multispectral imaging

Abstract

The application relates to the corrugated paperboard production technical field and discloses a corrugated paperboard adhesion permeability detection method based on multispectral imaging, which comprises the following steps: S1, acquiring the diffuse reflection intensity of different pixel points of corrugated paperboard under signal wavelengths and reference wavelengths, the signal wavelengths being in a strong absorption wave band of glue, and the reference wavelengths being in a weak absorption wave band of glue; S2, performing preliminary screening on the pixel points according to the diffuse reflection intensity under the signal wavelengths and the reference wavelengths; when the preliminary screening fails, calculating the glue permeation depth of the pixel points, and performing fine screening on the pixel points according to the glue permeation depth; and S3, performing process abnormality diagnosis according to the positions and the glue permeation depths of all fine screening failed pixel points. The diffuse reflection intensity of the corrugated paperboard under the double-wavelength spectrum is acquired, the adhesion state can be judged, the abnormal pixel points are integrated and comprehensively judged, and the adhesion failure problem can be traced.

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