Why are my scan measurements inaccurate even though the scan completes successfully?

Scans can finish successfully and still return inaccurate measurements. The most common cause is not following the proper scanning guidelines — specifically around how the person stands and what they wear during the scan. Following the steps below will help ensure your measurements are as accurate as possible.

Why Measurements Can Be Inaccurate

Even when a scan completes without an error, the 3D model is only as accurate as the data captured. These are the most common reasons measurements go wrong:

• Incorrect pose — If the subject is not standing in the correct position, the scanner cannot accurately measure body contours and dimensions.
• Inappropriate clothing — Loose, thick, or layered clothing adds bulk and distorts measurements. The wrinkles and folds of a loose shirt or baggy shorts can mask changes to your body and make it hard to accurately track progress. Tight-fitting or minimal clothing is recommended.
• Movement during the scan — Any movement while the turntable is rotating will affect the captured data.
• Obstructions or shadows — Objects near the subject, or daylight entering the room, can interfere with the infrared camera.

How to Get Accurate Measurements

Follow these guidelines every time you perform a scan:

1. Remove excess clothing. The subject should wear form-fitting or shape-revealing clothing. For women, this could be a sports bra and leggings; for men, bike shorts or boxer-briefs and no shirt. Remove shoes, bulky accessories, and outerwear.
2. Tie up long hair. If the subject has long hair, it should be tied up securely off the neck so it does not affect measurements of the upper body.
3. Position the subject correctly on the turntable. They should stand centered on the rotating platform, feet approximately hip-width apart, arms slightly away from the body in the "A" pose.
4. Ensure the correct pose is held throughout the scan. The subject should remain still and breathe normally while maintaining the same position for the full approximately 35 seconds of capture.
5. Block out daylight. The scan room should have no direct sunlight or strong ambient light coming through windows. The infrared camera can be disrupted by daylight.
6. Check the room setup. The turntable should have at least 17 inches of clear space on all sides, away from walls or furniture.
7. Wait for the pose detection confirmation. Styku Studio will detect that the subject is in the correct pose before starting the scan. Do not begin until this is confirmed.

Review the Full Scanning Guidelines

For complete step-by-step instructions on pose and preparation, refer to the How do I prepare a client for a Styku body scan? article in the Styku Help Center. Following those guidelines consistently is the most reliable way to ensure accurate measurements across all your clients.

If this resolves your issue, no further action is needed.

If the problem persists, contact support and include: your scanner model, a description of what the subject was wearing, the pose used, your room setup (lighting conditions and turntable clearance), and screenshots or examples of the measurements you believe are inaccurate compared to expected values.

Applies to: Styku Studio V5, all Styku scanner models

Related Resources

• How do I prepare a client for a Styku body scan?
• How should I prepare for a Styku 3D body scan?