How to select the corresponding resolution for specific scanning scenarios

As we all know, EinScan series scanners have a wide range of selecting resolution, ranging from 0.16mm to 3mm. Therefore, if the most appropriate resolution is selected for subsequent scanning circumstances, it often becomes a problem for many users.  

In this article, we will explain some selection elements and key points to you, hoping to bring you some help and gain! 

What is resolution?

First, let's understand the specific meaning of resolution. Resolution is the smallest possible distance between the closest two given points on your scanned 3D model.  

Also as known as “Point Distance”.

The higher the resolution, the better the details, and the closer to the real object, and vice versa.

Next, we will give you a further explanation of different resolutions and corresponding scenarios. 

★Different resolution ranges:

  • 1.    Small resolution (from 0.16mm to 0.24mm)
  • 2.    Small and medium resolution (from 0.3mm-0.5mm)
  • 3.    Medium resolution (from 0.5mm to 1.5mm)
  • 4.    Medium and large resolution (from 1mm to 1.5mm)
  • 5.    Large resolution (from 2mm and above)

1.    Small resolution (from 0.16mm to 0.24mm)

  • The resolution of this range is often the minimum resolution (or the highest detail resolution) that the scanner can reach. In this range, the scanning data has the highest precision, the best overall details, and the highest similarity with the real object. But the same will also result in the lowest scanning speed, longer post-processing, and larger data capacity. Therefore, in this range, we generally recommend you to sweep some small objects or handicrafts that need to preserve high ontology details, such as:
  • Reason: The higher the resolution is, the more details are presented. Therefore, it is more practical to use in some situations where the details of the object itself need to be restored and the object itself is not large. This is not only conducive to better feedback of details, but also does not cause a large post processing burden to the computer.

2.    Small and medium resolution (from 0.3mm-0.5mm)

  • The resolution in this range is between the small and the middle, and the applicable scenes are relatively wider. While meeting the requirements of high granularity, it can also relatively reduce the data volume and improve the data post-processing efficiency. Therefore, we generally recommend that you scan some mechanical applications that need to be used in reverse engineering, such as:
  • Reason: When scanning some mechanical structure objects, reverse engineering or subsequent progress related to mechanical design is often required under specific scenarios. Therefore, it is necessary to ensure that the scanning data requires a high degree of detail restoration, and also improves a certain post-processing efficiency to improve productivity.

3.    Medium resolution (from 0.5mm to 1.5mm)

  • The resolution of this range is in the middle of the whole point distance range, so the applicable scenes are the most widely and relatively frequently used. Basically, scanning in daily life can select this range for full coverage. Moderate details and post-processing speed also make the scope more acceptable. For example:
  • Reason: The medium resolution range is more suitable for daily use. For some furniture or daily necessities, scanning can not only restore certain details without taking up too much post-processing time, but also obtain a smooth scanning experience. Daily scanning is relatively recommended.

4.    Medium and large resolution (from 1mm to 1.5mm)

  • The resolution in this range is large, which means faster scanning speed and post-processing speed. The disadvantage is that the details of the scanned object will be restored to a lower degree. Therefore, in the range of this point distance, we generally recommend scanning human body or organism (with the non-rigid body algorithm provided by some scanners) to get a better scanning experience. For example:
  • Reason: Medium and large resolution is more suitable for scanning medium and large objects (such as human body), which is widely used in medical treatment and education. As the human body needs to keep relatively stationary during scanning, a faster scanning speed is necessary. Just under this point distance, this requirement can be well met, and some details of the human body can be restored. The data can also be applied to some later scientific and academic research fields.

5.    Large resolution (from 2mm and above)

  • The resolution in this range is relatively maximum, so the ability to restore details is also lower, but the scanning speed and post-processing speed are relatively fast. Therefore, we generally recommend using this distance to scan some large objects, such as vehicles. For example:
  • Reason: Because the object itself is large, if a full scan is required, it requires not only a faster scanning speed and higher post-processing efficiency, but also a relatively small data volume (too much data may cause a certain risk of collapse). Therefore, it is highly suggested to scan large objects with a large resolution without very pursuing the details of the restored object itself.

To sum up:

The above suggestions and cases are only for reference, and you need to choose according to your own situation.

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