Melamine Faced Panels (Plywood,MDF,CHIPBOARD ) Defect Classification beyond the Visible Spectrum

Melamine Faced Panels (Plywood,MDF,CHIPBOARD ) Defect Classification beyond the Visible Spectrum

Problem Description In essence, a melamine board is a particle board (Plywood,MDF,Blockboard)  coated with a decorative sheet impregnated with melamine resins.  We focus on classifying five different types of defects, paper scrap, stains, white stops, paper displacement, and bubbles . Each one of those defects appears due to one or more of the following reasons, the presence of dust or suspension particles, dirt or zones without adhesives .

Example of different defects that can appear in melamine boards ((a)Paper scrap, (b) Stains, (c) White spots, (d) Paper displacement, (e) Bubbles).

 

The classification of the previously described defects is key to the commercialization of the product in demanding markets. Nowadays these detection and classification problems are manually performed, or with equipment that just uses VS cameras. Thus in this work, we test following hypotheses: The usage of images from different spectrum could improve the classification performance of defects, in contrast with the sole use of images from the visible spectrum.

Melamine board defects
Melamine board defects
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