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CUBOID-SI2FE

What is CUBOID-SI2FE?

CUBOID-Sequenced Images to Finite Element Script is shortly CUBOID-SI2FE. CUBOID-SI2FE is a Matlab Script for converting MRI and CT images to Finite Element Model. CUBOID-SI2FE Script was written by Gokhan ALTINTAS. Script has seven different versions written for different purposes. Altintas developed this script for his own purposes independently from well known flood fill (region growing) algorithms.

Features of CUBOID-SI2FE

* Conversion of Sequenced Images to Finite Element Model.

* CUBOID-SI2FE includes Non-Recursive Flood Fill Algorithm (Region Growing Algorithm).

* CUBOID-SI2FE includes Treshold Algorithm and can also accept presegmented images.

* CUBOID-SI2FE Produces Finite Element Model File in the Form of Abaqus INP File Format. (Abaqus FE Model can be convert any type FEA Software like ANSYS outside of CUBOID-SI2FE)

* C3D4 Type Elements are Used in Reconstructed Models. (Can be convert any type elements outside of CUBOID-SI2FE)

* It uses CPU instead of GPU.

* There is no limitation for size and numbers of images contrary to commercial alternatives.

* It can produce multiple parts with or without using Flood Fill Algorithm.

* Anisotropic Voxel Size can be use.

Cooperation

* Script is not available freely until it will write C# version with GUI.

* We can cooperate for scientific studies and we can process your files.

Improvements will soon

* Codes will rewrite in C# with GUI for commercial purposes and will add secondary algorithms like surface smoothing.

* Faster versions will code of Flood Fill Algorithms.

* If I have enough time for this Script I will write freeware versions, but due to projects that I work on not possible now.

Sample Studies

Image files was taken from Micro-CT. Isotropic pixel size is 0.04 mm and slice thickness 0.040 mm. Bone structure RGB value range is 255 to 255 mean absolutely white, remembering that the sample solution and all values are victitious.

* Floodfill Location; x=17, y=69, slice number=9, treshold low=255, treshold high=255

* Determining Floodfill Location by picker.m file. See the Screenshot

* Input Files; 150 x 150 pixel size, 10 images. Download

* Output Abaqus File. See the Screenshot, Download Abaqus INP File

* Output Abaqus File for 50 images. See the Screenshot, Download Abaqus INP File

* Another Example from same image files (Vertebrea), but now you can follow different strategy as multiple parts in the same model without floodfill algorithm, this approaching is suitable for matrix inclusion type composites. Screenshot1, Screenshot2, Screenshot3

Note: This is sample solution files and real bone structure in this images larger than sample solution.

Micro-CT images of bone processed for two ranges of treshold value (part1 0-130, part2 131-255) in above sample. This approaching is can be widely applied granular materials, soil and concrete problems.

Recent Studies Related with Reverse Engineering Techniques

Effect of Slice Thickness Variation on Free Vibration Properties of Micro-CT Based Trabecular Bone Models (2nd International Symposium on Computing in Science & Engineering June 1-4, 2011 Kuşadası – TURKEY)

Altintas G., Effect Of Slice Step Size On Prediction Of Natural Vibration Properties Of Bone Tissue, Mathematical Computational Applications, 2011, (Accepted)

Gokhan ALTINTAS, Node ID Based Non-Recursive Flood Fill Algorithm For Non-Uniform Discrete Solid Domains 2012, (Accepted)

G. ALTINTAŞ, A. ERGÜT, R.T. ERDEM, E. GÜCÜYEN, F. ALTINTAŞ, Virtualization of Time Consuming Reverse Engineering Applications in Engineering Education 2012, (Accepted)

MANUSCRIPTOR ACADEMIC PHARASE BANK

(For Non-English Students, Tiny Editable Pharase Bank)

This is completely free tool for writing scientific manuscripts. This program coded by Altintas while he is learning vb. But many friends of him send their thanks for software. This is very simple but very complete tool for academic writers. Tool has many tabs related with parts of manuscript such as introduction, conclusion etc. Every tab has sample sentences that can be use in manuscript. This program coded for especially non-english users. Coder will start professional ver. of manuscriptor when he reach his spare time. You can free use and distribute it.
Download Screenshot
Some usage tips.
YOU CAN EDIT EVERYTHING AND STORE YOUR OWN SENTENCES, PHARASES ETC.
Predefined part
You can use the buttons and related tabs for reading sentences for guide in predefined part of the manuscriptor.
In first you cannot see any sentence under the related tab, if you want to see sentences, simply do mouse over the blank fields.
If you want to add your sentences predefined areas, please double click on the sentences. You can see the related office documents and edit.
User defined part
In this area user can do everything. For instance you can create not only your own sentences or word lists but also you can rename documents.
You must use radio button for view document inside, for rename document double click to document name and for edit document click Edit file button.