Abstract
The NDT detection of knobs of logs and timbers was conducted by using computer video technique. The key detection points were taken from these knobs for mathematics description. It can make the drawing of these knobs quantitatively and establish corresponding mathematics models. Using the grayness of pictures and cartoon treatment made the mathematics reappearance of the knobs become more access to video pictures.
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Hong’e, R., Yan, M., Xiaohua, T. et al. The NDT detection of knobs’ shape by video treatment technique. Journal of Forestry Research 10, 191–193 (1999). https://doi.org/10.1007/BF02855431
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DOI: https://doi.org/10.1007/BF02855431