An approach for analyzing breadth and depth measurement errors of a 3D whole body scanner

As the development of optical measurement technology, 3D whole body scanner is applied to collect anthropometric data from human body surface instead of traditional measuring devices. The accuracy is important for a 3D whole body scanner. In order to analyze the measurement error, a set of dimension-certified measurement equipment whose true dimensions were certified was introduced. The calibration models of height, breadth and depth measurement between measured values and true dimensions were established respectively and relevant error envelopes were derived. A verification experiment was conducted to determine the validity of these models. The accuracy of this scanner can be improved by using the calibration models to obtain more accurate 3D human models.