A statistical model of tristimulus measurements within and between OLED displays
This work addresses color accuracy issues for display manufacturers and calibration professionals, but it is incremental as it builds on existing noise modeling approaches.
The authors tackled the problem of modeling noise in color measurements from OLED displays, finding that noise is anisotropic in XYZ space and primarily aligned with the measured vector, and they developed a simple empirical model that accurately captures both temporal and inter-panel variations, with inter-panel noise being larger in magnitude.
We present an empirical model for noises in color measurements from OLED displays. According to measured data the noise is not isotropic in the XYZ space, instead most of the noise is along an axis that is parallel to a vector from origin to measured XYZ vector. The presented empirical model is simple and depends only on the measured XYZ values. Our tests show that the variations between multiple panels of the same type have similar distribution as the temporal noise in measurements from a single panel, but a larger magnitude.