Table 2 Information on 14 parameters extracted from the images.
From: A new Chinese crow’s feet grading scale based on the DermaTOP system
Item | Parameter measured | Parameter description | N | Minimum | Maximum | Mean | SD | ICC |
|---|---|---|---|---|---|---|---|---|
B1 | LR | The length ratio | 428 | 1.0065 | 1.1720 | 1.0287 | 0.0197 | 0.9648 |
B2 | Ra | Average roughness | 428 | 0.0116 | 0.0828 | 0.0249 | 0.0082 | 0.9347 |
B3 | Rz | Mean maximum height deviation | 428 | 0.0498 | 0.2940 | 0.0999 | 0.0320 | 0.9135 |
B4 | Rt | 2D maximum height deviation | 428 | 0.0891 | 0.5492 | 0.1861 | 0.0637 | 0.9905 |
B5 | SR | The area ratio | 428 | 1.0157 | 1.4753 | 1.0562 | 0.0419 | 0.9686 |
B6 | SQ | Quadratic mean deviation | 428 | 0.0150 | 0.1056 | 0.0329 | 0.0110 | 0.9923 |
B7 | ST | 3D maximum height deviation | 428 | 0.1960 | 2.6819 | 0.4089 | 0.1939 | 0.9711 |
B8 | SA | 3D linear arithmetic mean | 428 | 0.0115 | 0.0862 | 0.0250 | 0.0081 | 0.9606 |
B9 | Stm | Maximum height deviation mean | 428 | 0.1256 | 0.7866 | 0.2460 | 0.0794 | 0.9481 |
B10 | Volume sum | Volume of the depression in the skin | 428 | 0 | 2.5910 | 0.1059 | 0.2665 | 0.9983 |
B11 | Circumference sum | Circumference of the depression in the skin | 428 | 0 | 178.5700 | 14.9387 | 26.6017 | 0.9253 |
B12 | Area sum | Area of the depression in the skin from skin | 428 | 0 | 29.8550 | 1.9639 | 3.8037 | 0.9344 |
B13 | Max depth average | Max depth of the depression in the skin | 428 | − 0.4040 | 0 | − 0.0550 | 0.0724 | 0.9866 |
B14 | Mean depth average | Average depth of the depression in the skin | 428 | − 0.1020 | 0 | − 0.0172 | 0.0219 | 0.9234 |
