The use of the acoustic tomograph and digital image analysis in the qualitative assessment of harvested timber – case study

Abstract Accurate qualitative evaluation of grown and harvested wood is a key issue from the point view its subsequent economic evaluation. With current trend global climate change large volumes damaged by harmful agents, automated methods quality assessment are becoming more important. The work aimed to verify applicability significance results using acoustic tomograph for selected tree species logs. Ten samples log sections non-coniferous coniferous trees were evaluated, on which an image analysis features was performed cross-section their digital photograph output software. compared with each other accuracy feature identification evaluated. At same time, through STN EN 1309-3. It shown that, when evaluated according Standard, overestimated average 29.19% 28.22% photograph. use confirmed good level in even logs wood, although it primarily intended standing trees.