NF EN ISO 20685-2, X35-012-2 (09/2023)

This document establishes protocols for testing exploration systems using 3D surface scanners to collect data on human body shape and measurements. It does not apply to instruments that measure the movement of individual marks. Most of this document concerns whole-body scanners, but it also applies to scanners limited to part of the body (head scanners, hand scanners, foot scanners). It applies to body scanners that measure the human body in a single view. When evaluating a handheld scanner, the human operator may contribute to the overall error. When evaluating systems in which the participant is rotated, motion-related artifacts may be introduced and also contribute to the overall error. This document applies to landmark positions determined by an expert in anthropometry. It does not apply to marker positions automatically calculated by the software from the point cloud. The quality of the external shape of the human body and the positions of the landmarks is influenced by the performance of the exploration systems and humans, including the operators performing the measurements and the participants. This paper evaluates the performance of exploration systems using artifacts rather than human participants as test objects. Traditional instruments must be precise to the nearest millimeter. Their accuracy can be verified by comparing the instrument to a scale calibrated against an international length standard. To verify or specify the accuracy of body scanners, a calibrated test object of known shape and dimensions is used. This document is aimed at users of 3D body scanners to create 3D anthropometric databases, users of these data and designers and manufacturers of body scanners. This document is intended to serve as a basis for agreement on the performance of body scanners between users of the scanners and suppliers of scanners as well as between suppliers of 3D anthropometric databases and users of these data.
(Automatic translation from French)