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BlakeMake Honor Student
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3D Scanning Large Objects

Microsoft Windows 10 (64-bit)

Hello, I am using the HP Structured Light Scanner with a 2 camera setup.  I work for a sculpture studio and am trying to scan life size animals, up to the size of a horse.  I have printed 620mm scale calibration panels and can successfully calibrate the scanner, but the scan results are inconsistent compared to scanning smaller objects.  I can edit the scans to be usable but would like to know if fabricating extensions for the scale would correct some of the alignment issues.  Is the size limit of the 3d scans limited by the scale bar, or something in the software?  I cannot currently get the overlap between the cameras to the 10-15 degree angle suggested for the 2 camera setup.  Does anyone have experience with a larger scan like this?

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OBN_RacerMan Top Student
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3D Scanning Large Objects

1. The dual camera mode has 2 options for obtaining a scan - by default (when only the part of the object that is visible to both cameras is displayed) and Extended (in this case, scanning is equivalent to two scans made by one camera from two points of view) - which mode is selected for you ?
2. Also, are you trying to capture the entire object in the field of view, or are you scanning in parts?

BlakeMake Honor Student
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3D Scanning Large Objects

I am currently scanning an entire object in the field of view, but am open to scanning in parts.  I am using a manual turntable for larger objects, and the automatic turntable for smaller objects.  Neither feature allows for use of the extended view so I think I am not using that mode.  The manual turntable has hard stops at 20 degrees so I generally get a complete scan out of 18 scans.

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OBN_RacerMan Top Student
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3D Scanning Large Objects

I tried to make scans by scanning a relatively large object in parts (due to the lack of a calibration table of a suitable size). Here is an example:

fan_case_02.jpg

But for this, the object must have either pronounced volumetric elements, or have a texture (or other marks that are characteristically distinguished by color), which could be used as a kind of special markers in other scanning programs.
Also, in the case when (for various reasons) physical distortions are observed at the edges of the scan, I crop them manually (in this case, more scans need to be done)

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