Characterizing Profiled Fibers by Multiscale Shape Representations

Characterizing Profiled Fibers by Multiscale Shape Representations
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通过多尺度形状表示表征异形纤维

DOI:
10.1520/jte104253
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发表时间:
2012-03
影响因子:
1.2
通讯作者:
BuGao Xu
BuGao Xu
中科院分区:
材料科学4区
文献类型:
--
作者:
RongWu Wang;LiPing Tang;PeiFeng Zeng;BuGao Xu

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提出了一种测量异形纤维计量特性的多尺度形状表示方法。从纤维横截面的封闭边链中,选取具有等间距索引的3个点构成三角形,利用3个点的坐标阵列行列式计算三角形面积表示(TAR)。用三个顶点绘制的两条连续线的弯曲方向决定了TAR的标志。用负tar和正tar分别表示为TARN和TARP来检测边界上的凹段和凸段。TARN或TARP图中对象的大小反映了其凹凸程度。如果改变索引间距,可以得到一系列不同尺度的tar。多尺度tarn和tarp可用于识别异形纤维的基本形状,评估凹凸度,并检测纤维粘连以进行精确分离。
This paper presents a multiscale shape representation approach for measuring the metrological characteristics of profiled fibers. From closed edge chains of a fiber cross section, three points are selected with evenly spaced indices to form a triangle, and the triangle area representation (TAR) is calculated with the determinant of a coordinate array of the three points. The bend direction of two consecutive lines drawn with the three vertices determines the sign of the TAR. Negative and positive TARs, denoted as TARN and TARP, respectively, are used to detect concave and convex segments on the boundary. The size of objects in a TARN or TARP graph reflects the degree of concaveness or convexness. If the index spacing is changed, a series of TARs with different scales can be obtained. Multiscale TARNs and TARPs can be used to recognize the basic shapes of profiled fibers, assess concavity, and detect fiber conglutinations for precise separation.
DOI: 10.1159/000147798
发表时间: 1996
期刊: Acta anatomica
影响因子: --
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