3D scanning
3D model from magnetic resonance imaging
How to generate a 3D CAD model based on magnetic resonance imaging?
Hi,
I would like to tell you about my new experience. Recently I dealt with processing STL files and came across a program to generate STL files from magnetic resonance imaging. I decided to download it and learn how to use it. I will briefly describe the whole process to you.
InVesalius 3 is the software that will be mentioned in my letter. After finding the program, you immediately downloaded it on your computer. It is a free fact that I was very pleasantly surprised. Once I installed it, I had to get resonance. A few years ago I had such a rally, but as you can see it is very useful when we want to learn new programs. After finding it, I immediately put the disc in the device and killed myself for searching the disc. There were a lot of files, but I was interested in "Image" photos. And I played this folder on my computer.
IInVesalius 3 - CAD model generation
After starting the program, the main menu appears. Intuitively, in the upper right corner we find the button to load the resonance.
Click it and choose the folder from which you want to play photos. Loading them two minutes
The program automatically divides us photos into subsequent scans. There are several of them on the disc depending on what settings were at resonance. Each scan is different depending on what we want to get and what to get back to
After selecting the scene we are interested in, click the import button in the lower left corner of the program window.
It generates three scan views for us. One window corresponds to photos of one of three axes. Each photo is numbered and is reflected in other planes.
To create a 3d model we will be most interested in the upper right corner. At this point, we have the option of automatically selecting part of the photos to be used to create the scan. The program works so that we can choose the area of interest through the gray scale. I was interested in the skull from this scan. As it has the highest density it on the scan takes the lightest color striving for white. I use the gray scale slider to select the most white area.
We can choose one of several examples of gray scale settings from the drop-down list. People who created this program, having experience, selected the best scale for equal needs, such as bones, for us.
After setting and selecting the places from which I want the model to be generated, I click "Create surface"
After a few seconds, my first 3D model created from magnetic resonance imaging appears in the bottom right corner. As I created it by automatically selecting parts it is of medium quality and has many unnecessary elements in space as well as a large number of holes.
I would like to improve this scan and get a little better quality at this stage. The program allows us to do this. We can manually select the area to generate a 3D model. There are several options here. One of them is a brush to select or deselect an area. A very good solution is to set the scale of gray that our brush affects. This option is very useful but time consuming, because each photo must be processed manually.
My opinion on this program is very positive. We can easily make a 3D model of any part of the body or other object scanned by us. I recommend this program especially for people working in projects for medicine but also of course in other mechanical fields.
The model created directly in this program can be processed in specially designed programs of this type. We have a large selection. Through basic amateur and professional.
After several hours of fun and really pleasant, addictive work. I was able to create a model stl. it is free of holes and imperfections. In the basic file there were a lot of unnecessary parts located in space as well as deficiencies that had to be fixed. In a large number of places, I had to reconstruct large areas of the skull. I smoothed the whole thing, refined it and managed to get a really satisfying effect.
CAD model and 3D printout
I saved the finished 3D model in .stl format and decided to print on a 3D Ender 3 printer. I evaluate the effect very positively, everything went very well.
My opinion on this program is very positive. We can easily make a 3D model of any part of the body or other object scanned by us. I recommend this program especially for people working in projects for medicine but also of course in other mechanical fields.
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