MATHEMATIK DES DIGITIZER-RAUSCHENS
RMS-Vektordrift & Diagonale Stift-Welligkeit
Aktive Stylus-Stifte (Wacom EMR, Apple Pencil, Microsoft Pen Protocol) können diagonales Linienzittern aufweisen, bedingt durch Quantisierung zwischen ITO-Kanälen. Die Genauigkeit wird durch den Abstand (di) zur Vektorachse bestimmt:
RMS-FEHLERFORMEL
RMS_Error = √( (1/N) × ∑(d_i)² )
Niedrige RMS-Werte (unter 1,5 Pixel) belegen professionelle Zeichentablett-Präzision.
OPTOMETRIC ERGONOMICS & NON-MEDICAL NOTICE
Display Test Online is an engineering calibration utility for electronic visual displays (LCD, OLED, QD-OLED, MicroLED) and mobile touch digitizers. This software is NOT a medical eye exam, optometric vision test, or diagnostic health utility.
To reduce Digital Eye Strain (DES) during display calibration, apply optometric ergonomics:
- The 20-20-20 Rule: Every 20 minutes, look at an object at least 20 feet away for 20 seconds.
- Ambient Illumination: Ensure room ambient lighting matches display brightness levels (~100–150 nits for standard SDR workloads).
- Optimal Viewing Distance: Place your screen approximately 20 to 30 inches (50–75 cm) from your eyes.