Table 2. Univariate analysis of the main features relevant to the prediction of TB positive objects.
Morphological Features | Features (unit) | Mean | Standard Deviation | Minimum value | Maximum value |
Width of object | rel_width (pix.) | 11.85 | 3.48 | 3.10 | 39.61 |
SD_width (pix.) | 4.16 | 1.70 | 1.33 | 26.79 | |
Ilumination of object | Mean-Nrefr15 (prop.) | 74.67 | 3.77 | 59.27 | 84.51 |
bimedia (brightness units) | 51.64 | 2.61 | 43.94 | 62.67 | |
Form and length of object | Num-tips (non-dimensional) | 8.52 | 4.31 | 3 | 28 |
perimeter/length(prop.) | 2.23 | 0.15 | 1.97 | 3.84 | |
max-width (pix.) | 23.56 | 6.28 | 11.70 | 79.19 | |
SD-for (pix.) | 8.54 | 4.36 | 0.99 | 35.85 |
(pix.): pixels; (prop.): proportion. The statistics shown were estimated from 1223 positive cords.