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Method for analyzing and evaluating micro-nano particle dispersion and distribution

A micro-nano particle and dispersion technology, which is applied in image analysis, image data processing, instruments, etc., can solve the problems of difficult to accurately separate adjacent particles and agglomerated particles, low accuracy and efficiency, and errors

Active Publication Date: 2014-07-02
SHANGHAI JIAO TONG UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

Since this analysis method mainly depends on human subjective factors, there are various subjective errors, and the accuracy and efficiency are very low.
In addition, because micro-nanoparticles are prone to agglomeration, it is difficult to accurately separate a large number of adjacent particles and agglomerated particles manually. analyze and evaluate the situation

Method used

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  • Method for analyzing and evaluating micro-nano particle dispersion and distribution
  • Method for analyzing and evaluating micro-nano particle dispersion and distribution
  • Method for analyzing and evaluating micro-nano particle dispersion and distribution

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Embodiment Construction

[0058] Particles refer to micro-nano particles.

[0059] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0060] 1. Perform grayscale processing on the microscopic image of micro-nanoparticles to obtain a grayscale image, such as figure 1 As shown, the specific steps of grayscale processing are to convert the three channel values ​​​​of the RGB image according to the formula

[0061] Gray=R*0.299+G*0.587+B*0.114,

[0062] Perform calculations to obtain the gray value of each pixel.

[0063] 2. Binarization processing, removing impurities and invalid boundary targets:

[0064] 1) The OTSU method uses the difference in gray value between the target and the background in the image, treats the image as a combination of the target and the background with different gray levels, and judges a specific target in the image by selecting an appropriate threshold. Whether the pixels belong to the target or the background, thus gen...

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Abstract

The invention provides a method for analyzing and evaluating micro-nano particle dispersion and distribution. The method includes the following steps of firstly, collecting a micro-nano particle microscopic image, and graying the image; secondly, conducting binaryzation on the image through an OTSU method, and removing impure points and ineffective communication domains in the image; thirdly, separating the connected communication domains through the morphological algorithm, and filling holes in the communication domains; fourthly, adding virtual particles, segmenting the image through the watershed algorithm, and obtaining segmented characteristic communication domains; fifthly, calculating related data of the characteristic communication domains; sixthly, evaluating micro-nano particle dispersion and distribution. By means of the method, the more accurate result can be obtained; a large number of micro-nano particle distribution microscopic images can be rapidly processed in a batched mode; the micro-nano particle distribution condition can be analyzed and evaluated comprehensively from the aspects of uniformity, density and clustering degree.

Description

technical field [0001] The invention relates to the field of distribution, manipulation and analysis of micro-nano particles, and the field of electronic packaging, in particular to an analysis and evaluation method for the dispersed distribution of micro-nano particles. Background technique [0002] The material value and application prospects of micro-nano particles have been gradually recognized by people, and nano-science and technology are considered to be one of the three major technologies in the 21st century. Due to the small scale of micro-nanoparticles, their volume effect and surface effect have shown special properties in terms of magnetism, electrical properties, catalytic performance, adsorption performance, etc., and have attracted great attention. However, at the same time, due to the It has a large specific surface area and high specific surface energy, and it is prone to agglomeration during the process of dispersion and distribution, which is what we do no...

Claims

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Application Information

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IPC IPC(8): G06T7/00
Inventor 熊振华袁鑫盛鑫军朱向阳
Owner SHANGHAI JIAO TONG UNIV
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