Content Comparison

...

1. Prepare the object and make sure it has enough geometry and texture details. Objects that are difficult to scan include objects with very dark surfaces, highly reflective or shiny objects, transparent objects like glass, some plastics, etc., objects with very thin edges e.g crumpled paper.
2. Provide even lighting without using direct sunlight.
3. Open Artec Studio 14, if you have connected the Artec Eva Scanner, the software will automatically select it.
4. Create a new project before getting started: use the + button in the Workspace panel, select File – New Project from the menu, or use the shortcut Ctrl +N. Once you have saved the project, you will be able to load or unload scans as necessary and thereby limit RAM usage.
5. Decide how many session you need in order to capture the entire object. By using a special third-party rotating table, you may be able to avoid interrupting the session and eliminate the need to turn the object by hand. Depending on your choice, you may
   • Turn the object
   • Position yourself to gain access to the other area.
   • Use a rotating table.
6. Click Preview or press play on the handle of the scanner. Direct your scanner at the object and practice your movements around the object, taking into account the proper Scanning Techniques.
   
7. Identify the base plane for the mode by directing the scanner at the surface that supports the object and click Record to start capturing.
8. Gradually move the scanner while monitoring the process in the 3D View Window.
9. Capture what you can and pause or cease recording by clicking the Pause or Stop button, respectively. Choose Stop if you must make adjustments to the object’s positioning.
10. Turn the object or otherwise adjust it as necessary, then capture any remaining unscanned regions.

11. Once you have successfully captured the object from all sides, click the Stop button on either the scanner handle or in Artec Studio.

    
    

Post Processing your model

The resulting fusion model may contain surface defect due to scanning or registration errors. Artec Studio 14 provides a number of tools to correct such errors:

• Repair corrects the model's triangulation errors.
• Small-object filter removes small objects located near the model surface.
• Fix holes semiautomatically fills holes and smoothens the model edges.
• Hole filling fills holes in the model automatically.
• Smoothing filters low-amplitude noise over the whole model.
• Smoothing brush enables manual smoothing of the surface areas with the most noise.
• Mesh simplification reduces the number of polygons in a model while minimizing lost accuracy.
• Isotropic remesh creates isotropic mesh while keeping the processed mesh as close to the original as possible.

Exporting your model

To export your scan:

• Mark any scans you want to export from the layer panel.
• Select the Export scans command in the dropdown menu option in the Workspace panel
• Click the ... button to open and specify the destination folder.
• Select Scan export format using the dropdown list.
• If the selected format supports textures, also specify the texture format.
• Select the Apply transformation checkbox, or leave it cleared.
• Click OK.

Scanning Techniques

To accurately capture an object or scene, follow these steps:

• Pay closer attention to the object on the screen rather than looking at the actual object.
• Ensure that Artec Studio can accurately register frames from the scanner. To this end, do the following:
  • Don’t move the scanner too fast
  • Keep the object as close to the center of the field of view as possible
  • Maintain the scanner orientation in such a way that the field of view is sufficiently filled with surfaces
  • Try to position the scanner in the way the most surfaces in the field of view are colored in green which corresponds to the center of the range meter.
  Image Modified
• If you’re capturing an object over several scans, remember to capture a common area in each one to ensure successful alignment.
• If you’re capturing an object in one scan, do so all the around the object – regardless of direction – plus a little more (360+ degrees)
• Avoid capturing any objects that may change shape during the scanning process. When the geometry of the scene is changing, the system may fail to find the correct position of new frames relative to previously aligned ones. If you have captured unwanted objects, you must remove them later during the editing stage.
• Don’t record too many frames: ensure that you have sufficiently scanned all regions, but avoid scanning them twice, except when providing overlapping areas for subsequent alignment.

Watch a video of a quick 4-minute scan done using a SOA student's model.

Things to note

Additional helpful links