3D Reconstruction of the Tree Internal Decay Based on Radar Waves

TRU Tree Radar is a new tool for the non-destructive testing of trees. In this work, two-dimensional images of the internal defect cross-section of a tree were reconstructed to provide a theoretical basis for accurately judging the shape and position of the internal decay, rationally using wood, and...

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Bibliographic Details
Published in:Bioresources 2022-11, Vol.17 (4), p.6277-6292
Main Authors: Meng Li, Yong Xiang Kang, Van Quy Nguyen, Xu Zhen Gao, Li Li Zhang, Jin Ling Wang, Xiao Qiang Zhou, Gang Zhen Ma
Format: Article
Language:English
Subjects:
3d reconstruction
surface rendering
tree decay
tru tree radar
volume rendering
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Summary:TRU Tree Radar is a new tool for the non-destructive testing of trees. In this work, two-dimensional images of the internal defect cross-section of a tree were reconstructed to provide a theoretical basis for accurately judging the shape and position of the internal decay, rationally using wood, and improving the utilization rate of wood. Two-dimensional images of different height defect sequences of tree trunk obtained by TRU tree radar were preprocessed and interpolated. Finally, the three-dimensional reconstruction of internal defects of tree trunk was realized by the surface rendering method and volume rendering method under the Matlab environment. The surface rendering displayed the rough 3D model quickly and effectively. However, the important internal information was incomplete, and the reconstructed model was not intuitive. Volume rendering was used to process each voxel in the data set, so as to describe the physical reality of the internal defects of the tree relatively accurately. An algorithm was proposed to improve the visualization level of internal defects, which can enhance the understanding of the three-dimensional image.
ISSN:1930-2126