Introduction In this post we want to propose the use of image processing in order to perform a complete hole analysis in porous materials. As fas as we know, features like structure, size and shape of holes become very important to define the acoustic behavior (ie. acoustic absorption) in all these kind composited materials. The …
Mes: junio 2014
How the image resolution affects the results?
Introduction How can the image resolution affect the statistical results on an image processing application? On your left you can observe the same object (an ellipsoid, AR=2) with different resolutions. Low resolution presents a major axe of 12 pixels and high resolution object is about 80 pixels. It seems to be evident (see previous posts, …
Number vs. Volume weighted distributions
Introduction As it was explained in a previous post, we ask the reader to present both number and volume weighted distributions for a three-particle composed material, with the following settings: A-type: high-resolution elliptical particles with major-axe of 12 mm, AR=2 B-type: high-resolution elliptical particles with major-axe of 10 mm, AR=3 C-type: high-resolution elliptical particles with major-axe of …
Number vs. Volume distributions
Introduction In this post we will analyze number vs. volume weighted distributions in a material composed by two different kinds of (synthetic) particles. In the image on the left we can check the differences between number and volume weighted particle size distributions for the same sample. As the number weighted shows how material is composed …
Synthetic samples
The synthetic microstructure generator is a script written in Matlab code and developed by Mark Tschoop. At this moment, the last updated version is November 2009. By means of this tool we can generate a binary image with non-overlapping ellipses of varying sizes and distributions. It was originally developed to examine the influence of particle aspect ratio, area fraction, and …