3D Scanning at a Glance

Before you start using the guide, we want to show you how easy 3D scanning can be. This brief summary will help you understand the 3D scanning process with the Artec 3D tools and get started quickly. If you prefer to begin with comprehensive and detailed information, you can skip this chapter.

The figure below schematically shows a typical common sequence of the 3D scanning and processing in the Artec 3D environment.

Scanning

Working with a scanner, transferring data from the scanner to a PC (mobile device) for further processing.

Cleaning

Rough cleaning of scans with the Eraser tool. Removal of the base surface and side objects.

Alignment

Aligning multiple scans of the same object.

Registration

Optimizing the position of frames within one or more scans.

Fusion

Creating a mesh model on the base of scans.

Postprocessing

Mesh simplification, smoothing and other optional steps.

Note

The need for a particular step depends on the individual case.

Preparation

PC Requirements

Besides a scanner itself, you need a PC to create and process models in Artec Studio. Your PC must run on the 64-bit version of Microsoft Windows 7, 8 or 10. The more powerful the PC, the better. The main memory (RAM) and graphics card are the most critical components (visit our FAQ page for more information).

Activation

Warning

Don’t connect the scanner just yet! Continue reading for more information.

1. Register for an account at my.artec3d.

2. Sign in and download Artec Installation Center from the welcome page.

3. Install Artec Installation Center. When prompted, enter your email and password.

4. Plug the scanner into a power outlet, then connect it to your PC using the USB cable.

5. Wait for Windows to detect the scanner. Click Activate.

6. Click Install in the Software section to get Artec Studio running on your machine.

(For more details, see User Account, Scanner Activation and Offline Activation.)

Prepare Object and Scene (Common Recommendations)

Most objects are easily scanned, but observe the following recommendations for best results:

• Before scanning transparent, reflective or black objects, we suggest applying a powder coating or a special anti-glare spray.

• To scan monochrome objects with simple geometric shapes, do the following:

  • Add auxiliary objects (e.g., crumpled paper) to the scene

  • Paint markers (e.g., “X” shapes) on the surrounding surfaces

• Be sure to provide good ambient light.

A detailed information on preparing for different scanner types is available at the following links:

• for Micro

• for Leo

• for Ray

See also

Selecting and Preparing Objects for Scanning.

Scanning

Spider/EvaMicroLeoRay

1. Launch Artec Studio, then aim the scanner at the object.

2. Press on the scanner to start Preview mode. If your scanner lacks this button, first open the Scan panel.

   • Geometry + Texture is the default scanning mode and is suitable for most cases

   • For older PCs, Geometry mode is a good alternative

   • The Real-time fusion mode creates a model in real time, allowing you to skip postprocessing; click Stop, then select the Real-time fusion checkbox and click Preview.

3. Make sure the object is visible, then press once again to initiate recording. If possible, scan all sides of the object in one go, slowly moving the scanner around it as pictured below.

   Note

   While scanning, pay closer attention to the object on the screen than to the actual object.

4. If you hear an alert sound and the screen displays an error against a red background, smoothly aim the scanner at the area you just captured. Possible reasons for the “Tracking lost” error include the following:

   1. You are scanning simple geometric shapes

   2. The part of the object you are scanning is too small

   3. Scanner movement is too fast

5. Press to display the scan in Artec Studio.

Figure 1 Scanning with Eva.

Turn and Scan (Optional)

Turn the object and capture any remaining unscanned regions (press ). Also, to facilitate alignment, record at least one previously scanned region.

See also

• Buttons and LED Indicators for Eva and Spider

See also

• Tweaking Scanning Options,

• Scanning Procedure,

• Tracking Modes, and

• Scanning With Real-Time Fusion.

Use Autopilot

For beginners, the easiest way to obtain a 3D model is by using Autopilot. It’s also a great time saver for advanced users. If you prefer performing all the steps manually, refer to the Process Manually section.

Autopilot is a special mode that helps users obtain a complete 3D model without learning all the ins and outs of postprocessing. It consists of two major parts: semiautomatic (editing and alignment) and automatic.

Tweaking Autopilot Settings

• Hole-filling method (available options are Don’t fill, Watertight and By radius) instructs the algorithm to fill or not fill holes in the model.

• Model resolution—the lower the resolution value, the sharper the shape and the more details you will see. If you’re unsure, leave the value as Auto. Effectively, it’s the same as Creating Models (Fusion) resolution. Note that the resolution should be no less than 0.5 for scans captured using EVA and no less than 0.1 for Spider.

• Polygon count determines how many polygons the resulting model will have. The greater the value, the better the quality and the larger the file size. If you’re unsure, leave the value as Auto. For more information, consult the Mesh Simplification section.

• Texture—clear this checkbox if you don’t want to apply texture to the model.

• Texture resolution takes specific values in the range of 512x512 to 8192x8192 or 16384x16384 pixels depending on the available GPU memory.

To produce a model,

1. Click Autopilot in the left panel or hit F9.

2. Become familiar with the steps that you will perform in this guided mode (listed in the welcome screen).

3. In the Workspace panel, use the flag to mark all scans that you intend to use, then click Next.

4. Then specify the input parameters for the model-creation step and click Next. Primary settings may include the following:

   Note

   We suggest consulting the tool tips, which you can reveal by clicking the button next to the option name.

   1. Scan quality (geometry). Click to determine whether your scan of the object has the correct geometry by examining the tool-tip images.

   2. Scan quality (texture). Click , look at the images and decide whether your scan has sufficient texture.

   3. Hard-to-scan surfaces. Select the checkbox if your object has surfaces that are difficult to capture. Consult the image samples by clicking the button.

   4. Decide on the Object size by referring to the image samples.

   5. Leave the default values for the remaining options in this window (sufficient for most cases). For advanced scenarios, you can tweak these settings (more details appear in the sidebar).

5. If necessary, erase any extraneous objects that can hinder processing and postprocessing. Learn how to use Eraser by consulting the Erasing Portions of Scans (Eraser) section.

6. Once you’re done, click Next. If the object was captured over several scans, Autopilot will align them and show you the result. You can approve it or align the scans manually (consult Manual Rigid Alignment Without Specifying Points).

7. Click Next.

8. Autopilot will begin processing and then postprocessing. Once it’s finished, a message will appear informing you that the model is ready. Click OK.

The automatic steps can be grouped as follows:

• Processing

  1. Global registration

  2. Outlier removal

  3. Fusion

• Postprocessing

  1. Small-object filter

  2. Mesh simplification

  3. Texturing

Note that, the Autopilot mode does not implement advanced techniques such as HD Reconstruction and Photo Registration.

Process Manually

Crop Surroundings

Once you finish, click File and select Save project. Close the Scan panel. You can now crop the surroundings.

Purpose: To erase auxiliary surfaces (e.g., a table or floor).

Steps: Open Editor → Eraser → Cutoff-plane selection. Follow the panel instructions.

Tip

Use freely other types of the Eraser (not only Cutoff-plane selection) to remove other unwanted elements from the scan.

See also

Editing Scans.

Align

Tip

If you have only one scan (see the Workspace panel), or if you used Auto-alignment during scanning, you can skip this step.

Purpose: To align several scans.

Steps:

1. Mark two or more scans using , click Align and select those scans in the Best fit tab while holding the Ctrl key.

2. Click Auto-alignment.

3. If alignment fails owing to a lack of texture or lack of overlapping areas, manually match the features among the scans and click the Align button.

Figure 11 Two scans before and after alignment.

See also

Alignment in details.

Global Registration

Purpose: To simultaneously optimize the frame position across all scans, thus preparing them for further processing.

Steps: Mark scans using , then click Tools → Global registration → Apply.

Tip

If you see some obvious problems with preliminary (Rough) registration after scanning, try to resolve them by Global registration of each scan separately. See Global-Registration Parameters.

See also

Global Registration in details.

Eliminate Noise

Purpose: To erase large outliers and some noise.

Steps: Open Tools → Outlier removal → Apply.

Figure 12 Outlier removal.

See also

Editing Scans and Eliminating 3D Noise (Outlier Removal) for more details.

Fusion

Purpose: To create a model (a single surface, as opposed to the multiple surfaces that constitute the source scan).

Steps: Select Tools → Smooth fusion → Fill holes → All (watertight) → Apply.

Tip

To obtain sharper surfaces, select Sharp fusion.

In any case, 3D resolution can be adjusted: the smaller the value, the more precise the resulting surface.

See also

Creating Models (Fusion) in details.

Erase Flaws (Optional)

Purpose: To erase any outliers and poorly scanned regions.

Steps: Click Editor → Defeature brush. Follow the instructions.

Figure 13 Using Defeature brush.

See also

Editing Scans

Simplify Mesh

Purpose: To reduce the file size by decreasing the number of polygons without significantly distorting the actual 3D geometry.

Steps: Click Tools → Mesh simplification → Apply.

Figure 14 Mesh simplification.

See also

Mesh Simplification in details.

Texturing

Purpose: To create a textured model.

Steps:

1. Click Texture.

2. Select a model (fusion output) and its source scan(s) in the corresponding fields. Also see Photo Registration

3. Select texturing for Export → Apply.

See also

Texturing and Photo Registration in detail.

Export, Measure, Share

To export a model:

1. Open File → Export → Models.

2. Select a required format, specify the folder and file name, then click OK.

To measure the model:

1. Open Measures.

2. Select one of the following:

   • Distance for distance calculation: points are connected by lines (linear) or curves that pass over the model surface (geodesic)

   • Sections for area and volume calculation

See also

Exporting Models, Scans and Point Clouds, and Measurement Tools.

Tips and Tricks

• You can reset all settings to their defaults using F10 → Scan tab → Reset to defaults.

• To return any altered parameters in the Tools panel to their default values, click the adjacent button. A parameter lacking this button is set to the default value.

• Save screenshots by hitting Ctrl+Shift+S.

• Apply annotations using Measures: click Ctrl+LMB to tag a label and type text, then click or anywhere outside the label’s pop-up window.