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HD mode F.A.Q.

 

1. What is the HD mode?


The High Definition mode is a completely new algorithm that greatly enhances the quality of Artec Eva and Artec Leo scans.

 

2. What are the advantages of using the HD mode?

The HD mode can increase the resolution of the scan data up to 2X*
*In order to get a visible improvement at 0.2 resolution, the “HD Data Density” setting should be set to higher than default, and the object must be scanned well.

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  • Improves edge curvature and sharp/thin edges reconstruction

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  • Enhances the reconstruction of hard-to-reach areas and difficult-to-scan surfaces

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  • Decreases texture bias (false geometry reconstruction originating from high-contrast texture)
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3. How does the HD mode work (for Artec Eva)?
  • In order for raw Eva scans to be converted into HD, the "Use HD reconstruction" setting needs to be enabled before the scanning process is started.Screenshot_2020-10-15_at_00.20.01.png
  • For this reason, it is NOT possible to enhance the quality of scans that were made prior to AS15.1.
  • The scanning process itself remains unchanged. HD processing is performed after scanning, generating HD versions of the scans while also keeping the “Standard Definition” (SD) scans.
    (!) Please note that it is not possible to postpone HD processing or run it on a different computer. This feature will be implemented in future versions of Artec Studio.
  • Each HD scan will contain several times more points in comparison to an SD scan. Due to this, HD scans require at least twice more RAM than their SD counterparts.

 

 

4. How does the HD mode work (for Artec Leo)?
  • On the Leo scanner, the "Record HD data" parameter needs to be enabled in “Settings” before the scanning process is started.
    The default setting of 1/8 can be used in most cases: this will result in each 8th recorded frame being an HD frame. The 1/4 setting (as seen in the screenshot below) will result in each 4th recorded frame being an HD frame.

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  • With the setting enabled, the scanning window will feature an HD Recording button.
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  • Projects scanned in HD will also have a corresponding indicator on their preview thumbnail.
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  • HD scans made with the Leo scanner are processed during import. The user may choose to either import the scans in SD or HD, by toggling the “Use HD reconstruction” checkbox in the import dialog window.
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  • HD scans cannot be saved to the MicroSD card. They can only be imported via an ethernet or Wi-Fi connection. An ethernet connection will provide considerably faster import speeds, and is the recommended way of transferring Leo projects.

 

 

5. Can the Artec Eva Lite scanner be used in HD mode?

No, the Eva Lite does not support HD mode.

 

6. Do the Artec [Space] Spider, Artec Micro or Artec Ray scanners work in HD mode?

No, the HD mode is not available for Artec [Space] Spider, Artec Micro or Artec Ray scanners.

 

7. What does the "HD data density" setting do?
  • “HD data density” is a key parameter for HD reconstruction. It controls the balance between resolution and reconstruction enhancement of the HD mode, and notably impacts the size of the HD-processed scans.
  • The multiplier number in the “HD data density” setting reflects the number of points that an HD scan will have in comparison to its SD counterpart (e.g. an HD scan processed with the "4x" HD data density setting will have 4 times more points than the corresponding SD scan). The more points the scans will have, the more RAM they will need, and the more time all the algorithms and tools will require during post-processing.
  • The “HD data density” setting does not affect the duration of the HD reconstruction process that is executed after scanning. The reconstruction process will be of equal duration regardless of the density setting chosen.
  • HD scans made with the "1x" setting will be of roughly equal size as normal SD scans. The 1x setting is recommended for users with low-end PC configurations or users who value the HD mode mainly for its noise reduction and more accurate edge and corner reconstruction capabilities. A noticeable resolution increase is not to be expected when using the 1x setting.

 

8. What is HD reconstruction sensitivity?

The “HD reconstruction sensitivity” setting allows decreasing the amount of noise on the scans.

 

 

In case you experience any issues with your Artec 3D scanner or require technical assistance with your device or Artec Studio, in the first instance please contact your local Artec dealer/distributor directly. You can also contact the Artec Support Team by clicking on the the "Submit a request" button at the bottom right of the page, or by emailing support@artec3d.com.

 

 

 

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