Presentation Information
[A-15-03]Consideration of the optical model of a dual-projector in a 3D porous projection screen
◎Kansuke Hirata1, Hiroshi Ohkama1 (1. Muroran Institute of Technology)
Keywords:
3D display,Volumetric Display,Occlusion
This study aims to examine an optical model for a dual-projector system to improve occlusion in a scalable, glasses-free 3D display that utilizes a unique "3D porous projection screen."
While the conventional optical model used the image filling rate and screen transmittance as parameters, it did not account for certain optical characteristics. To address this, this study proposes a more rigorous new optical model that incorporates two factors: the beam expansion of the projector, which is proportional to distance, and light diffusion (haze) caused by the screen material.
Furthermore, the dual-projector configuration introduces a challenge where overlapping occluded regions on the front screen adversely affect the projected image. Because the mask image generation in the existing system was unstable and caused frequent crosstalk, we propose an improved calibration system for each projector to stabilize mask image generation.
While the conventional optical model used the image filling rate and screen transmittance as parameters, it did not account for certain optical characteristics. To address this, this study proposes a more rigorous new optical model that incorporates two factors: the beam expansion of the projector, which is proportional to distance, and light diffusion (haze) caused by the screen material.
Furthermore, the dual-projector configuration introduces a challenge where overlapping occluded regions on the front screen adversely affect the projected image. Because the mask image generation in the existing system was unstable and caused frequent crosstalk, we propose an improved calibration system for each projector to stabilize mask image generation.