Model Building Info (MBI) panel displays the building info, which describes how well the model matches the scanned contours.

Normally, any scan (Shadow, Reflect, or Refined) would contain its own building info data attached, and the information on the Model Building Info panel would update as soon as the scan in is selected in the list of models.

Scanned models prepared in the older versions of HPOxygen may lack the Model Building Info.
On this page:

Model building details

Model Building Info panel contains the header referring to the overall model quality, followed by the lines that describe individual problem spots. Lines are color-coded according to the severity of the errors they signify (red-yellow-green, from highest to lowest). Errors in the girdle area are listed separately and colored in gray.

Linear deviation is the maximum deviation of an edge from the corresponding contour.

Standard deviation is the averaged (root-mean-square) deviation of an edge from the corresponding contour.

Visualization features

Each of the lines related to the individual spots in the Model Building Info panel is a link. Pressing such a link while viewing the model in the Scanner or Photo mode would orient the model so as to display the corresponding contour. The matching photo is also shown. The problem-causing edge is highlighted in the same color as the corresponding line in the Model Building Info panel.

Note that the shadow contours are now displayed as dotted yellow lines.

If the photo shows evident signs of dirt, the user is advised to clean the stone and run the scan again. To facilitate this, enable the Sync Stone with Modelcheck box, which makes the stone on the scanner to be oriented simultaneously with the model.

Note that the said checkbox does not synchronize all motions of the model in Model view, Photo view, and Scanner view.

Color encoding

Color encoding of the errors implies the following recommendations:

Message colorError rateDescription and recommendation

The model has small errors

Standard deviation

Linear deviation

Small error

Edge is most probably built properly and there is no need to re-check in a routine study.

In case of a high-precision investigation, further analysis may be required.

The model has medium errors

Standard deviation

Linear deviation

Medium error

The edge may or may not be built properly.

It is recommended to check for the error reason.

The model has big errors

Standard deviation

Linear deviation

Big error

Edge is probably built incorrectly because of dust or another reason.

Must be checked.

Girdle deviation -

Girdle edge could contain dust. It is strongly recommended to check. Dust on a girdle can result in the wrong diameter value.

Each error line is colored according to the magnitude of the error it describes. The thresholds of various colors depend on the hardware model, as shown below.

Average model error (Avg)

Standard deviations of edges (Standard deviation)

Maximal deviations of edges (Linear deviation)


small, mkm

medium, mkm

big, mkm

small, mkmmedium, mkmbig, mkmsmall, mkmmedium, mkmbig, mkm

HP4.4D(1:1) pixel ~ 3.2 mkm

< 3.3

3.3 - 6.6

> 6.6

< 4.954.95 - 9.9> 9.9< 9.99.9 - 19.8> 19.8

HP8.5D(1:1) pixel ~ 6.4 mkm

< 4.1

4.1 - 8.2

> 8.2

< 6.156.15 - 12.3 > 12.3< 12.312.3 -24.6> 24.6

HP17D(1:2) pixel ~ 12.7 mkm

< 5.675

5.675 - 11.35

> 11.35

< 8.518.51 - 17.03> 17.03< 17.02517.025 - 34.05> 34.05

HP23ProD(1:2) pixel ~ 14.8 mkm

< 6.2

6.2 - 12.4

> 12.4

< 9.39.3 - 18.6> 18.6< 18.618.6 - 37.2> 37.2

HP34D(1:4) pixel ~ 25.4 mkm

< 8.85

8.85 - 17.7

> 17.7

< 13.2813.28 - 26.55> 26.55< 26.5526.55 - 53.1> 53.1

HP47ProD(1:4) pixel ~ 29.8 mkm

< 9.95

9.95 - 19.9

> 19.9

< 14.9314.93 - 29.85> 29.85< 29.8529.85 - 59.7> 59.7
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