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How Does A 3D Scanner Work

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Allen Oneil
How Does A 3D Scanner Work

3D scanners work by collaborating with software. The software uses all the statistical data, measurements, depth, and images to compile and show a 3D digital model as output. 

Some 3D scanners are straightforward and easy to use are automated. But, industrial-grade 3d scanners require a high-end computer for image processing. Therefore, it is mandatory to know how does a 3d scanner work for getting the best-suited scanner for themself. 

There are a lot of variations of 3D scanners in the market. The most commonly available is the LASER 3D scanners and Light projection 3D scanners. Though these 3D scanners follow different working principles, the core theory remains the same.  

Scanning Process

The whole process of 3d scanning takes place in three parts. We would discuss the parts in this section. You will get the entire working process of the 3D scanner in Texel. 

Input

The target object is placed on a scanning platform. This scanning platform can be either rotating or remain stationary. It depends upon the optical sensors of the scanner. 

However, laser radiation or light is projected on the object. If the 3D scanner is laser one, then radiated laser on the object gets reflected and recaptured by the receiving sensors. 

On the other hand, structured light projections create a three-dimensional vacant in the light pattern which is further captured by sensors. 

Besides, there remain stationary and moving cameras that take continuous 2D images of the object. The images are taken from different angles. If the cameras are stationary scanning the platform spins.

Image Processing 

All the data from the laser or light sensors are measured by the integrated analyzing software. The distance, physical dimension, depth, appearance, and color of the object are accurately measured from the analyzed data. Images by the cameras are compiled to get one single 3D image of the object.

A stationary laser scanner has an automated option to shoot the laser on the object as required. It helps to create a trackable difference between the laser captured and the external lights. Therefore, a better 3D geometry of the object can be produced. 

Output

Nextly the analyzed physical data and the processed 3D image is compiled and fine-tuned. The overall scanned 3D model is thus displayed on the monitor or scanner’s display as a raw 3D model. It can be further customized and edited by users. The output formats are basically FBX, OBJ, VRML, PLY, STL. 

You can use the raw 3D image for display and sharing over social media apps. Besides, you can also save it processed image into a 3D printable format. Using commercial 3D printers, your 3D model can be printed. 

Conclusion

3D scanning is a very important process in the era. People can use it for personal or industrial uses. 3d scanners are produced based upon their working principles and size. That is why the price range of the 3D scanners varies also. 

For these reasons, it is important to know how a 3D scanner works before buying a worthy 3D scanner. It will help you to make immediate decisions based upon the target of productivity.

 

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