GB/T 38147-2019Requirements of digital body graphics for clothing (English PDF)

3.1 Feature point of body cross-section contour graphic

The feature point in sectional contour graphics of various parts of a human body extracted according to size parts in the graphic that is obtained by using a non-contact measuring instrument.

NOTE: Usually it is center point or extreme point in XY axis direction.

3.2 Body section figure

After converting point clouds or solid images obtained using a non-contact measurement, a cross-section graphic of each control part taken from the image that is obtained by using software.

4.1 Acquisition of body graphics and inspection principle

Based on national standard and industry standard measurement methods, use a non-contact measuring instrument to collect samples to obtain image data.

According to body size parts, section figures of different parts (bust, hip, waist, neck) are formed. Respectively check whether graphics are closed and continuous, whether the feature points are complete and the correlation is correct. Determine whether the feature points are offset and whether the offset is within the range. Finally, determine the accuracy of the graphics based on the above parameters.

4.2 Requirements for acquisition of body section figure

4.2.1 Figure acquisition instrument

4.2.1.1 Non-contact automatic human body measuring instrument for clothing.

4.2.1.2 Mobile terminal software or third-party compatible software that can collect body section figure.

4.2.2 Requirements for figure acquisition test

4.2.2.1 Selection of test sample

It shall select any tested subject (normal body) who shall stand in the standard standing position.

4.2.2.2 Measurement methods

According to the requirements of GB/T 23698, it shall use an automatic measuring instrument to measure the tested subject three times to obtain three sets of measurement results in total.

4.2.3 Figure acquisition methods

4.2.3.1 It can use the software tool of the measurement instrument to automatically intercept.

4.2.3.2 If there are no automatic intercept function, it can use a third-party Right hip point P42 -Yes -No Fore abdominal center point P43 -Yes -No Hind hip center point P44 -Yes -No Left hip protrusion P45 -Yes -No Right hip protrusion P46 -Yes -No

4.3.3 Interrelationship requirements and inspection of feature points

4.3.3.1 In the coordinate axis of Figure 1, the angle between the line connecting the center point of each control part and the line connecting the left and right sides shall be 90° ± 2°. If the angle between the central point line of each control part and the left and right side points is 90° ± 2°, it is determined that the central point line of the part is perpendicular to the left and right side points. Record as "Yes" in the checklist (see Table 5). Record the actual angle. Otherwise, it shall be determined that it is not vertical. Record "No" in the checklist (see Table 5) and record the actual angle.

4.3.3.2 In the coordinate axis of Figure 1, the deviation of the ratio of the coordinate values of the two symmetrical points of each control part graphic shall be within a certain range. According to the allowable deviation table for the position of the symmetrical feature points of each part in the coordinate axis in Table 6, determine whether the position deviation ratio between the symmetrical feature points of the figure is within the allowable range. If it complies, determine as "Yes", otherwise as "No".

4.3.3.3 It shall respectively check the interrelationship between the feature points of the graphics of each part. Record in Table 5.

Part If the left and right point lines are perpendicular Name of symmetrical feature point Sex If position deviation is within the range […]