通过分析木材试样的扫描电镜照片,研究了木材横纹剖面的多孔结构特征,采用盒维数法计算了其分形维数。
The porous structure of wood samples on their cross sections was analyzed using scanning electron microscope images, and their box-counting dimensions were calculated.
目前计算分数维广泛采用的方法是盒维数法。但对于灰度图像而言,盒维数计算的结果太粗略以致于很难将它作为进行图像分析的特征。
The popular method for fractal dimension estimation is box-counting method, but as to gray level images, the results are so coarse that they could hardly be used as the feature for image analysis.
应用计盒维数法的基本原理考察了大豆酸奶和酸牛奶是否具有以自相似性为特征的分形结构,并最终确定豆浆酸奶和酸牛奶的分形维数分别为1.9105、1.9268。
Box counting method was applied to investigate the fractal structure and the fractal dimension for soy based and dairy yoghurt was determined to be 1.9105 and 1.9268 respectively.
现阶段的分形动力学生长模型多采用DLA模型,而维数的计算多依赖于盒计数法。
DLA model is often adopted in the fractal dynamics growth models, and the box dimension calculation method is often used to calculate the dimension.
为有效计算局部放电超高频信号的网格维数,提出了一种二维曲线网格维数估计方法,比原差盒计数法具有更准确的估计结果。
To calculate the gridding dimension of PD UHF signal, a gridding dimension estimate method is presented, which has a more accurate estimate results than the original difference box-counting method.
尝试应用分形理论表征多孔材料的微结构,介绍了曲线和孔隙面积分形维数的定义,并采用盒维法对2个分形维数进行计算。
Fractal theory is applied to do it. The definition of curve and pore area fractal dimension is introduced. Two fractal dimensions are determined by box-counting method.
尝试应用分形理论表征多孔材料的微结构,介绍了曲线和孔隙面积分形维数的定义,并采用盒维法对2个分形维数进行计算。
Fractal theory is applied to do it. The definition of curve and pore area fractal dimension is introduced. Two fractal dimensions are determined by box-counting method.
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