The measurement and assessment should be accompanied on any type of electronic displays. Especially, quantitative analysis is indispensable as the reference to catch the direction to proceed. In this paper, we will present the approach for quantification of the holographic display images. To do it, we achieved the holographic display system with spatial light modulator and Fourier lens, and adopted indices needed for evaluation, such as contrast ratio, cross talk, color dispersion, and uniformity. These indices have been generally employed in the field of classical 2D display and multi-view 3D display. However, there have been almost no tries to adopt them in that of holographic 3D display system due to the absence of concrete methodology up to now. We suggested a standard image, and identified that measured numbers could be used to select the better way of generating the holographic image. We believe that this quantitative approach for assessment of holographic images will help more accurate and systematic development in that field.
Multiplexed holographic display structures using optical scanning have features that extend the image size or viewing angle of the holographic display through beam steering. This makes the display device relatively free from the performance limits of the SLM(Spatial light modulator), thereby increasing the possibility of the practical use of the holographic display. However, the holographic display optical structure of the beam-steering system that propagates the beam in the off-axis direction necessarily generates optical aberration. In this study, the optical aberration according to the steering of the light wave is measured through the optical simulator and converted into the Zernike polynomial form. The aberration values obtained by this method are reflected in the optical field of the reconstructed hologram image to correct the optical aberration. As a result of the aberration compensation, distortion and image deterioration of the reconstructed holographic image were reduced, which was verified through experiments.