Xcitex 3‑D Calibration Fixtures
Our fixtures provide a simple way to calibrate your cameras for 3‑D stereoscopy. Add a 3‑D calibration fixture to your ProAnalyst 2023 quote, or contact us directly to purchase a fixture on its own.
Overview
Designed with 3‑D in mindOnce time-consuming and mathematically involved, 3‑D calibration has become the easiest part of 3‑D analysis thanks to ProAnalyst 2023 and the Xcitex 3‑D calibration fixtures.
Each Xcitex 3‑d calibration fixture features a grid of dots called "control points"; the 3‑D positions of these points are stored in an associated "fixture file" that comes with the fixture.
The layout of these control points makes our fixtures ideal for stereo camera setups. Note: we use "stereo" to refer to 2-camera configurations where the separation angle between the cameras is less than 90°.
The Calibration Process
Easily calibrate stereo camerasTo calibrate your stereo cameras, all you need is an image of the fixture taken by each camera and the 3‑D analysis toolkits inside ProAnalyst 2023.
After you perform the 3‑D calibration, ProAnalyst will have created a virtual 3‑D coordinate system for your measurement volume, complete with the 3‑D positions and orientations of the 3‑D calibration fixture and each of your cameras.
Configurations
Fixtures for all fields of researchThe Xcitex 3‑D calibration fixtures vary in both size and material to accommodate a wide range of analysis applications. The smaller, more lightweight fixtures are ideal for analyzing small subjects within limited measurement volumes, while the larger, more rugged fixtures are perfect for calibrating large volumes in any environment.
| 3‑D Calibration Fixture | Dimensions* | Construction | Fixture file |
|---|---|---|---|
| 1 inch fixture | 1 in × 1 in × 1 in | Lightweight plastic body | Download |
| 2 inch fixture | 2 in × 2 in × 2 in | Lightweight plastic body | Download |
| 6 inch fixture | 6 in × 6 in × 6 in | Sturdy plastic body | Download |
| 12 inch fixture | 12 in × 12 in × 12 in | Aluminum frame | Download |
| 24 inch fixture | 24 in × 24 in × 24 in | Aluminum frame | Download |
| 1 meter fixture | 1 m × 1 m × 1 m | Aluminum frame | Download |
| 2 meter fixture | 2 m × 2 m × 2 m | Aluminum frame | Download |
*Listed dimensions may not include rubber feet and other small features on the fixtures' exteriors. |
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Build your own fixture
Custom 3‑D calibration solutionsSome applications require measuring 3‑D motion in volumes larger than 2 meters or smaller than 1 inch. In those cases, refer to our app note on constructing your own custom 3‑D calibration fixture.
Important: 3‑D calibration in ProAnalyst is significantly easier with the Xcitex 3‑D calibration fixtures. Building your own fixture is recommended only if using an Xcitex fixture is not feasible.
Read the app note