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2017 | OriginalPaper | Buchkapitel

Three Dimensional Stress Wave Imaging Method of Wood Internal Defects Based on TKriging

verfasst von : Xiaochen Du, Hailin Feng, Mingyue Hu, Yiming Fang, Jiajie Li

Erschienen in: Computer Vision

Verlag: Springer Singapore

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Abstract

In order to detect the size, shape and degree of decay inside wood, a three dimensional stress wave imaging method based on TKriging is proposed. The method uses sensors to obtain the stress wave velocity data sets by hanging around the timber randomly, and reconstructs the image of internal defect with those data sets. TKriging optimized structural relationship between interpolation point and reference point in space firstly. The searching radius is used to select the reference points accordingly. Top-k query method is introduced to find the k value with relevant points. The values of the estimated points are calculated and three dimensional image of the internal defect inside wood is reconstructed. The results show the effectiveness of the method and the accuracy rate of sample with one hole is higher than the Kriging method.

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Metadaten
Titel
Three Dimensional Stress Wave Imaging Method of Wood Internal Defects Based on TKriging
verfasst von
Xiaochen Du
Hailin Feng
Mingyue Hu
Yiming Fang
Jiajie Li
Copyright-Jahr
2017
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-10-7299-4_34