How do I know if my Styku scanner is properly calibrated and why does it matter?
How do I know if my Styku scanner is properly calibrated and why does it matter?
Styku scanners are calibrated at the factory before shipping and do not require manual recalibration in the field. However, measurement accuracy depends heavily on your scanning environment and physical setup — and these are the most common reasons results feel inconsistent. An external scale comparison is a useful starting point, but it is not the only check you should perform.
What "calibration" means for your Styku scanner
Styku uses a depth-sensing camera to capture a precise 3D model of the person being scanned. The system then measures that 3D model to produce body measurements and biometrics.
Calibration refers to the accuracy of two things:
- Weight measurement — the turntable platform records the subject's weight before the scan begins
- Body measurements — the camera and software work together to measure the 3D model
Both are affected by how your scanner is physically set up and where it is located.
The most important factor: your scanning environment
Environmental conditions have the biggest impact on measurement consistency. Before assuming a calibration problem, confirm your setup meets all of the following:
- No daylight or ambient sunlight in the scanning area. The depth-sensing camera uses infrared light, and sunlight — even indirect — interferes with it and causes poor scan quality. Block all windows in the scanning room.
- 14 inches minimum (18 inches recommended) of clear space on all sides of the turntable. Nearby walls, furniture, or equipment can appear in the scan and affect measurements. Make sure nothing is within that clearance zone.
- Plain background behind the scanner. A flat, matte surface (ideally grey) behind the camera tower produces the cleanest scans.
- No objects in front of the camera other than the turntable and the person being scanned.
How to check weight accuracy
The turntable records the subject's weight at the start of each scan. To verify it is reading correctly:
- Use a known, accurate reference weight (a calibrated scale or a dumbbell with a marked weight).
- Place the reference weight on the center of the turntable.
- Start a scan in Styku Studio — the weight reading will appear before the scan begins.
- Compare the reading to the known weight.
A small variance (1–2 lbs) is normal. Larger or inconsistent differences may indicate a turntable issue worth reporting to support.
How to check measurement precision (repeatability)
The most reliable way to confirm your scanner is measuring consistently is to perform a repeatability check:
- Have the same person perform two or three scans back-to-back in the same session, without leaving the scanning area.
- Compare the measurements across scans in Styku Studio.
- Measurements should be consistent within a very small margin between repeat scans of the same person.
Significant variation between scans of the same person, taken minutes apart, points to an environmental issue — most often daylight interference or insufficient clearance.
Why an external scale comparison alone is not enough
Comparing to an external scale only checks the weight measurement. It does not check whether the camera is capturing the body accurately or whether the environment is interfering with the depth sensor. Environmental factors, subject positioning, and scan technique all affect body measurements independently of weight. A full setup review covers all of these.
What to do if results still seem inconsistent
- Confirm your environment meets all the setup requirements listed above.
- Run a repeatability check as described above.
- If results remain inconsistent, contact Styku support to schedule a live review session. A support team member can remotely review your recent scan data and environment configuration to identify the source of the issue.
If this resolves your issue, no further action is needed.
If the problem persists, contact support and include: your scanner's physical location, a description of the inconsistency you are seeing (weight, body measurements, or both), photos of your scanning room showing clearance around the turntable and any windows or light sources, and the names and dates of two or three recent scans showing the inconsistency.
Applies to: All Styku configurations, Styku Studio V5