Here, the resolution of 1.37 x 1.37 x 5 mm overestimated the true volume of resin pockets. To estimate the volume of resin pockets in one log with a coefficient of error of less than 10% requires a step length of 80 mm between transverse sections or ten radial longitudinal sections 18 degrees apart. varying sample size and sampling intensity. The precision of the estimates is illustrated with varying step length between sections, i.e. Stereology applied on wood has to consider both the linear orientation of tracheids and rays, and the circular, lamellar oriented structure of annual rings. The Cavalieri theorem was applied for transverse sections and the Pappus theorem was applied for longitudinal radial sections. Stereological methods for the volume estimation of resin pockets in saw logs were studied using computed tomography (CT) and image analysis.
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