Automatic visual inspection has gradually found its way into the forest industry. There are plenty of inspection tasks in sawmills as well as in the secondary wood industry, e.g. production of furniture and construction components, such as windows, beams, etc. Regardless of where in the production chain the systems are used, the primary task is to find various defects on the lumber surface, such as knots, cracks, stain, resin pockets, and dimension faults, etc.

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