Table 5.
The classification, frequency and percentage of the photostimulable phosphor (PSP)-specific image artefacts
| Artefact group | Artefact type | Frequency |
||
|---|---|---|---|---|
| Absolute (n) | Relative (n) | |||
| Ambient light-induced artefacts and errors | Fading | 926 | 44.1 | |
| Non-uniform image density | 382 | 18.2 | ||
| Text pattern | 17 | 0.8 | ||
| Noisy image | 160 | 7.6 | ||
| Shining | 32 | 1.5 | ||
| PSP plate-induced artefacts and errors | Photostimulating luminescence layer damage | Cracking | 339 | 16.1 |
| Scratch | 871 | 41.5 | ||
| Bite marks | 22 | 1 | ||
| Peeling of the plate borders | 1121 | 53.4 | ||
| Crescent-shaped bending | 143 | 6.8 | ||
| Dirt on the plate | Dust particles on the plate | 737 | 35.1 | |
| Glove powder contamination | 195 | 9.3 | ||
| Fingerprint | 1 | 0.04 | ||
| Adhesive contamination | 164 | 7.8 | ||
| Scanner-induced artefacts and errors | Lines parallel to the slow scan direction | Straight line | 887 | 42.2 |
| Zigzagged line | 184 | 8.8 | ||
| Ridging | 4 | 0.2 | ||
| Skipped image part | 0 | 0 | ||
| Peeling of the conveyor belt | 31 | 1.5 | ||
| Erasure artefact | 0 | 0 | ||
| Plate size determination errors | Combining | 3 | 0.1 | |
| Bisection | 3 | 0.1 | ||
| Incomplete scanning | 11 | 0.5 | ||