Determination of stacking factors and wood volume stacked through digital image processing

Determination of stacking factors and wood volume stacked through digital image processing

Authors

DOI:

10.34062/afs.v9i3.13470

Abstract

This study aimed to evaluate the use of digital photographs in determining the stacking factor and stacked wood volume. Wood stacks consisting of logs from six planting spacings (3.0 m x 0.5 m; 3.0 m x 1.0 m; 3.0 m x 1.5 m; 3.0 m x 2.0 m; 3.0 m x 2.5 m and 3.0 m x 3.0 m) were evaluated. To determine the stacked wood volume (stereo) and stacking factors and to obtain digital photographs, 18 wood piles were built, three piles for each spacing. The data obtained was analyzed using Digitora software, and the stacking factor and volume were obtained based on counting the number of points distributed on the photograph. With this each point was observed and classified as an empty point, half point and null point. The accuracy of the photographic method was verified by calculating the percentage differences between the actual values (obtained in the field) and those estimated by the photograph and by graphically analyzing the distribution of the percentage differences by pile and spacing. Additionally, it was verified, by applying the t-test for paired data, if the values obtained by Digitora differed statistically, at 95% confidence probability, from the real values. It was verified that both the stacking factor and the volume, for each spacing, obtained by digital photographs were statistically equal to the value obtained in the field.

Published

2022-10-04

Issue

Section

Short Communication