A new way to characterize auto-stereoscopic 3D displaysusing Fourier optics instrument

摘要

Auto-stereoscopic 3D displays offer presently the most attractive solution for entertainment and media consumption.Despite many studies devoted to this type of technology, efficient characterization methods are still missing. We presenthere an innovative optical method based on high angular resolution viewing angle measurements with Fourier opticsinstrument. This type of instrument allows measuring the full viewing angle aperture of the display very rapidly andaccurately. The system used in the study presents a very high angular resolution below 0.04 degree which is mandatoryfor this type of characterization. We can predict from the luminance or color viewing angle measurements of thedifferent views of the 3D display what will be seen by an observer at any position in front of the display. Quality criteriaare derived both for 3D and standard properties at any observer position and Qualified Stereo Viewing Space (QSVS) isdetermined. The use of viewing angle measurements at different locations on the display surface during the observercomputation gives more realistic estimation of QSVS and ensures its validity for the entire display surface. Optimumviewing position, viewing freedom, color shifts and standard parameters are also quantified. Simulation of the moireissues can be made leading to a better understanding of their origin.