Article: Effect of moisture content variation on CT image classification to identify internal defects of sugar maple logs.

Abstract

Sugar maple logs (Acer saccharum Marsh.) were scanned with a medical x-ray scanner in order to evaluate the relationship between the moisture content (MC) and the performance of a parametric supervised classification procedure to detect internal defects. A first group of logs coming from five trees harvested at the end of May was scanned after 0, 2, 6, 10, and 14 weeks of storage. A second group of logs coming from five trees harvested at the end of August was scanned only once, immediately after felling. The CT images selected from each log were classified and filtered in order to identify and separate the sapwood from other internal characteristics. ...

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