What do you think is more important: accuracy or resolution
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Charlesssss
- Posts: 1
- Joined: 09 Aug 2024, 05:21
What do you think is more important: accuracy or resolution
Hello guys......Certainly, for me dimensional, volumetric and geometric accuracy is very important......I bought my Einstar 3d scanner ：https://www.einstar.com/ in June 2023, until that moment it was the best and with the most affordable price, of course I can’t expect much from a scanner that is not professional.....in this example I sent, it was one of the most complicated objectives I scanned, but I got a satisfactory model and with little dimensional deviation, 0.2mm compatible with my application.
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greenskynet
- Posts: 188
- Joined: 12 Nov 2021, 19:02
Re: What do you think is more important: accuracy or resolution
it depends on your scan purpose. for mechanical and industrial parts, usually accuracy is more important, and for art field, resolution and details on the scan, and also mesh surface quality is more important.
a scan can be accurate but low resolution and low detailed (for example you can get perfect accuracy with 1MP cameras, but low detailed scans).
and a scan can be very high resolution and high detailed, but with low accuracy. This happen when you use high resolution cameras, but the scanner is not calibrated well or there is some errors on the alignment.
Meanwhile some advanced softwares have special alignment and merging methods that try to yield the best appearance on the final mesh, but with losing accuracy or details, and vice versa.
For Example, in FlexScan3D software, there is two type for Merging: Smooth and Precise. The Smooth method slightly deform the mesh and try to yield the best surface quality on the final mesh, suitable for Art subjects. The Precise method try to keep the accuracy on the geometry at the highest level, suitable for engineering tasks.
In most of Shining3D scanners, they apply a heavy processing on the final meshes which give you very smooth, uniform and decimated result. the scan looks beautiful but is is slightly deformed due to applied heavy processing.
and the next example is Artec 3D. this software and scanner has advanced functions for alignment and merging that allow you to target the accuracy or appearance, like FelxScan3D.
This is Merging of the FlexScan3D. You can select two modes, for accurate or nice appearance scans.
a scan can be accurate but low resolution and low detailed (for example you can get perfect accuracy with 1MP cameras, but low detailed scans).
and a scan can be very high resolution and high detailed, but with low accuracy. This happen when you use high resolution cameras, but the scanner is not calibrated well or there is some errors on the alignment.
Meanwhile some advanced softwares have special alignment and merging methods that try to yield the best appearance on the final mesh, but with losing accuracy or details, and vice versa.
For Example, in FlexScan3D software, there is two type for Merging: Smooth and Precise. The Smooth method slightly deform the mesh and try to yield the best surface quality on the final mesh, suitable for Art subjects. The Precise method try to keep the accuracy on the geometry at the highest level, suitable for engineering tasks.
In most of Shining3D scanners, they apply a heavy processing on the final meshes which give you very smooth, uniform and decimated result. the scan looks beautiful but is is slightly deformed due to applied heavy processing.
and the next example is Artec 3D. this software and scanner has advanced functions for alignment and merging that allow you to target the accuracy or appearance, like FelxScan3D.