Artec Metrology Kit can be used not only as standalone tool but as well with combination with Artec Leo scanner to achieve the maximum accuracy.
Artec Metrology Kit is a DAkkS-certified 6DoF optical coordinate measuring system.
As with any photogrammetry solution, AMK estimates the three-dimensional coordinates of points on an object by employing measurements made in photographs taken from different positions. Common points are identified on each image. A line of sight (or ray) can be constructed from the camera location to the point on the object. It is the intersection of these rays (triangulation) that determines the three-dimensional location of the point.
The Artec Metrology Kit includes a scale bar and a reference cross (2-in-1 in the Entry version of the kit), a DSLR camera, selection of coded and non-coded targets. Also, adaptors can be added optionally.
To use the Artec Metrology Kit with Artec Leo, you need to create an *.obc file, export and upload it to Leo and start scanning in “Targets” mode.
Below you will find more information about each step:
1. Prepare the object and the scene for photogrammetry
Stick the coded and non-coded targets on the surface of the object.
Place adaptors onto the desired positions, if necessary.
Place reference cross and scale bars on/near the object.
2. Capture pictures of the created scene.
It is recommended to capture photos at three different heights, from the same spot, while systematically capturing photos to create a sort of dome around the object with the camera positions.
Each photo must contain at least 5 Coded targets and each target is recommended to be at least on 6 different photos.
The photos where a scale bar is seen are more valuable as the target information in them is more reliable in terms of accuracy than in those where there is no scale bar.
Hence if you are processing really large objects, consider purchasing additional scale bars and using more than one bar during measurement.
3. Perform calculations in the Artec Metrology Kit software.
4. Export the generated *.obc file.
5. Save the created *.obc file on your computer.
6. Upload it onto your Leo scanner via the browser.
7. Set Leo to scan by Targets and define the used target diameter.
8. Start scanning by pointing at the targets.
Important points to note:
- Keep the scene untouched (rigid) between making photos for AMK and scanning with Leo! You can add or remove objects without targets, but the relative distance between targets shall remain the same.
- Point the scanner directly at the targets, avoid scanning the targets from sharp angles.
- Keep as many targets in the scanner’s FoV as possible.
- Target size defines the optimal scanning distance - smaller targets require the scanner to be closer to the surface.
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 "Submit a request" button on the bottom right part of the screen or by emailing firstname.lastname@example.org