• Method The value of fractional dimension for liver CT image is calculated by differential box counting.

    方法以差分盒计算方法计算肝脏CT图像表面灰度的分维数值。

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  • A typical grid dimension is information dimension, the related probability measurement can be determined by counting the number of pixels of some type of land use in a given digitalized map.

    最后建议采用网格维数包括信息维数对城市土地利用的空间形态做进一步的定量描述。

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  • This study depicts the population space distribution under different living circumstances using Box counting dimension.

    本研究采用计盒维数刻画了延龄草不同生境下的种群空间分布格局。

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  • The results of simulations indicate that the relationship between melt undercooling and box counting dimension of dendrite is close to parabola.

    模拟结果表明熔体过冷度和树枝晶的计盒维数呈近似抛物线关系。

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  • 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.

    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。

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  • The modified box-counting method is used in estimating fraction dimension.

    分数维的计算采用改进的盒子计数法。

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  • Therefore, this paper used improved box-counting approach to compute the fractal dimension of wood texture cell image.

    为了提取木材纹理特征,提出采用改进差分盒子法计算木材纹理细胞图像的分形维数值。

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  • Fractal properties of ultrasonic signal are researched based on normalized scale box-counting dimension method successfully.

    基于归一化尺度计盒维数方法研究了超声波分形特征。

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  • Using box counting dimension method the different type of turbine fault with fractal characteristic is numerically researched.

    根据汽轮机故障的分形特征,采用分形盒维数方法进行了不同故障试验数据的分形盒维数研究计算。

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  • In addition, vector box-counting algorithm was applied in the research to calculate the regional water system dimension, which is a better method than the traditional grid box-counting algorithm.

    另外,在计算水系维数时采用的矢量计盒算法,比传统的栅格计盒算法具有更强的优势。

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  • The original pictures were converted into binary images, and fractal analysis was performed with the box-counting dimension.

    随后采用数字图像处理的方法,将原图像转换为二值图,并使用计盒维数的方法对图像进行了分形分析。

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  • Based on the relative differential box-counting method of calculating image fractal dimension, a practical approach is presented to detect an artificial target from natural scenes.

    基于图像分形维计算的相对微分计盒法,提出了一套实用的自然背景中人造目标的检测方法,给出了检测窗口与尺度选择的标准与参考值。

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  • 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.

    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。

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  • 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.

    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。

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  • 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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  • 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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