2-D particle shape averaging and comparison using Fourier descriptors

被引：17
|
作者：
Raj, PM [1 ]
Cannon, WR [1 ]
机构：
[1] Rutgers State Univ, Ctr Ceram Res, Piscataway, NJ 08855 USA
来源：
POWDER TECHNOLOGY | 1999年 / 104卷 / 02期
关键词：
particle shape; shape averaging; Fourier coefficients; elongation ratio; orientation; mean shape;
D O I：
10.1016/S0032-5910(99)00046-7
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Fourier transforms mathematically represent complex contours to a high degree of accuracy. Normalization of Fourier coefficients with respect to contour size, starting point from which the contour is traced, and its orientation, make the coefficients invariant to these contour characteristics that do not represent shape. The mean of the normalized Fourier coefficients and the error can be used to reconstruct the average shape and its deviations. Shape averaging of the 2-D contours using normalized Fourier coefficients was implemented on various ceramic particle systems. The averaged shape provides a convenient mode of shape comparison amongst various powder systems. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：180 / 189
页数：10
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