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Image vector histogram approach to nanoparticle sizing

机译:图像矢量直方图方法用于纳米颗粒尺寸测定

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摘要

A novel approach to measuring the size distribution of particles in the range of a few nanometers to a few micrometers is described. The method is based on processing multiple images of a sample of particles suspended in a liquid and undergoing Brownian motion. From each image, the centers of the particle positions are measured, then a histogram of the vectors connecting the centers in each image with all the centers in the next image is formed. This vector histogram contains information about the particle size distribution. A maximum-likelihood data inversion procedure to invert the data to yield a particle size distribution is described. Both computer simulation and experimental results are presented to demonstrate the effectiveness of the approach.
机译:描述了一种测量几纳米到几微米范围内的颗粒尺寸分布的新颖方法。该方法基于处理悬浮在液体中并经历布朗运动的颗粒样品的多个图像。从每个图像中,测量粒子位置的中心,然后形成将每个图像中的中心与下一图像中的所有中心连接起来的矢量的直方图。该矢量直方图包含有关粒度分布的信息。描述了将数据反转以产生粒度分布的最大似然数据反转程序​​。给出了计算机仿真和实验结果,以证明该方法的有效性。

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