Measurement Accuracy

How accurate are KORRA measurements?

KORRA's dual-photo mode (front + side smartphone images) produces body measurements with ±1–3cm accuracy for most body dimensions. The estimation mode (height-only input) produces measurements with approximately ±5cm accuracy. Actual precision varies based on pose, clothing, lighting, and camera distance.

Measurement Modes

Primary

Dual-Photo Mode

Stand in front of your phone. Capture a front view and a side view. KORRA's AI extracts precise measurements from both images and generates a 3D body model.

±1–3cm Expected precision

Input: Front + side smartphone photographs
Output: 18 male / 27 female garment measurements + 3D body model with 85+ derived parameters
Best for: Tailoring, garment production, remote measurement

Fallback

Estimation Mode

Enter your height and KORRA estimates your body measurements using anthropometric data models. Quick and useful when photos aren't available.

±5cm Approximate precision

Input: Height only
Output: 13 body measurements + body shape + size recommendation
Best for: Quick size estimation, e-commerce recommendations

What Affects Accuracy

For best results in dual-photo mode, follow these guidelines:

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Pose

Stand straight, arms slightly away from body, feet shoulder-width apart. Avoid leaning or tilting.

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Clothing

Wear fitted clothing or undergarments. Loose or baggy clothing adds volume and reduces measurement accuracy.

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Camera Distance

Stand 2–3 meters from the camera. Your full body must be visible in both photos.

☀️

Lighting

Use an evenly lit environment. Avoid harsh shadows that can obscure body outline detection.

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Image Quality

Use clear, focused photos. Blurry or low-resolution images affect the AI's ability to detect edges.

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Background

A plain, uncluttered background helps the AI detect your body outline more precisely.

Known Limitations

KORRA is powerful, but not perfect. Here are the situations where accuracy may be reduced:

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Accuracy decreases with loose or baggy clothing that obscures the body's true shape
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Extreme poses or angles reduce measurement precision — always stand straight and face the camera
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Poor lighting or low-resolution images affect body outline detection accuracy
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Occlusion (objects or other people blocking the body view) can cause measurement gaps
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Very tall or very short individuals may experience slightly higher error margins outside typical ranges
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KORRA is designed for apparel fitting, not medical body measurements

Validation Methodology

KORRA's accuracy claims are based on internal testing comparing AI-extracted measurements against manual tape measurements. Our validation process includes:

Multiple body types and sizes

Various clothing conditions (fitted vs. loose)

Different lighting and background conditions

Multiple smartphone camera types

Note: KORRA is not validated for medical body measurements. It is designed for apparel fitting purposes only. For medical body measurements, consult a healthcare professional.