The classical threshold method was improved, used the endpoint detection algorithm based on the box-counting dimensions and short-time energy-zero ratio.
对传统的门限比较法进行了改进,采用了基于分形记盒维数与短时能零比相结合的端点检测算法。
参考来源 - 背景噪声下的端点检测技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
The porous structure of wood samples on their cross sections was analyzed using scanning electron microscope images, and their box-counting dimensions were calculated.
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。
Simultaneously a new approach is proposed based on box-counting method to estimate the fractal dimensions, D2d and D3d of corrosion images.
同时,根据盒计数法原理提出计算图像二维和三维分维的方法。
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。
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